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ІО-22/20-П
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2
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|||||||
# Project exclude paths
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||||||
/out/
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||||||
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|||||||
# Default ignored files
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||||||
/shelf/
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||||||
/workspace.xml
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||||||
# Editor-based HTTP Client requests
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||||||
/httpRequests/
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||||||
# Datasource local storage ignored files
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||||||
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||||||
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||||||
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|
|||||||
<?xml version="1.0" encoding="UTF-8"?>
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|
||||||
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||||||
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|
||||||
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||||||
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||||||
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||||||
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|||||||
<?xml version="1.0" encoding="UTF-8"?>
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||||||
<project version="4">
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|
||||||
<component name="ProjectModuleManager">
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|
||||||
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|
||||||
<module fileurl="file://$PROJECT_DIR$/OOP_IO-2x_2023.iml" filepath="$PROJECT_DIR$/OOP_IO-2x_2023.iml" />
|
|
||||||
</modules>
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|
||||||
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|
||||||
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|
||||||
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|||||||
<?xml version="1.0" encoding="UTF-8"?>
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||||||
<project version="4">
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||||||
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||||||
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||||||
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|
||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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|
||||||
<initial-values>
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||||||
<property name="text" value="Button" />
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||||||
</initial-values>
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|
||||||
</item>
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|
||||||
<item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
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||||||
<initial-values>
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||||||
<property name="text" value="RadioButton" />
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||||||
</initial-values>
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||||||
</item>
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||||||
<item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
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||||||
<initial-values>
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||||||
<property name="text" value="CheckBox" />
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||||||
</initial-values>
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||||||
</item>
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||||||
<item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.svg" removable="false" auto-create-binding="false" can-attach-label="false">
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||||||
<default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
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||||||
<initial-values>
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||||||
<property name="text" value="Label" />
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||||||
</initial-values>
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||||||
</item>
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||||||
<item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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|
||||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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||||||
<preferred-size width="150" height="-1" />
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||||||
</default-constraints>
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||||||
</item>
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|
||||||
<item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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|
||||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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||||||
<preferred-size width="150" height="-1" />
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||||||
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|
||||||
</item>
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|
||||||
<item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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|
||||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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||||||
<preferred-size width="150" height="-1" />
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|
||||||
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|
||||||
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||||||
<item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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|
||||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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||||||
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||||||
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||||||
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||||||
<item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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|
||||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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||||||
<preferred-size width="150" height="50" />
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||||||
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||||||
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||||||
<item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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||||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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||||||
<preferred-size width="150" height="50" />
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||||||
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||||||
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||||||
<item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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||||||
<default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
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||||||
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||||||
<item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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|
||||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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||||||
<preferred-size width="150" height="50" />
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||||||
</default-constraints>
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||||||
</item>
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||||||
<item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
<default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
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||||||
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||||||
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<item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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||||||
<preferred-size width="150" height="50" />
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||||||
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<item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
<preferred-size width="200" height="200" />
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||||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
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||||||
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||||||
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||||||
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||||||
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||||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
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||||||
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||||||
<item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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||||||
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|
||||||
<default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
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|
||||||
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||||||
<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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|
||||||
<default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
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|
||||||
</item>
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|
||||||
</group>
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|
||||||
</component>
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|
||||||
</project>
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|
||||||
6
.idea/vcs.xml
generated
6
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generated
@@ -1,6 +0,0 @@
|
|||||||
<?xml version="1.0" encoding="UTF-8"?>
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|
||||||
<project version="4">
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|
||||||
<component name="VcsDirectoryMappings">
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|
||||||
<mapping directory="$PROJECT_DIR$" vcs="Git" />
|
|
||||||
</component>
|
|
||||||
</project>
|
|
||||||
40
Lab3/Lab2/Lab2/Program.cs
Normal file
40
Lab3/Lab2/Lab2/Program.cs
Normal file
@@ -0,0 +1,40 @@
|
|||||||
|
using System;
|
||||||
|
|
||||||
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public class Laba2
|
||||||
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{
|
||||||
|
public static void Main(string[] args)
|
||||||
|
{
|
||||||
|
const int a = 2;
|
||||||
|
int[,] b = new[,] //створення матриці;
|
||||||
|
{
|
||||||
|
{ 1, 2, 8 },
|
||||||
|
{ 3, 4, 5 },
|
||||||
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{ 6, 7, 9 }
|
||||||
|
};
|
||||||
|
int rows = b.GetLength(0); //отримання довжини рядків
|
||||||
|
int cols = b.GetLength(1); //отримання довжини стовпців
|
||||||
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for (int i = 0; i < rows; i++)
|
||||||
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{
|
||||||
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int Avg = 0;
|
||||||
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for (int j = 0; j < cols; j++)
|
||||||
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{
|
||||||
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Console.Write(b[i, j] + " "); // перебір матриці для обчислення середнього значення рядка
|
||||||
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Avg += b[i, j];
|
||||||
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}
|
||||||
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Avg = Avg / cols;
|
||||||
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Console.Write($"-average of row is:{Avg};" );
|
||||||
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Console.WriteLine(" ");
|
||||||
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|
||||||
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}
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||||||
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Console.WriteLine(" ");
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||||||
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for (int x = 0; x < rows; x++)
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||||||
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{
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||||||
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for (int y = 0; y < cols; y++)
|
||||||
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{
|
||||||
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Console.Write(b[x, y] * a + " "); //виведення матриці, помноженої на константу
|
||||||
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||||||
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}
|
||||||
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Console.WriteLine(" ");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
33
Lab3/Lab3/Lab3/Program.cs
Normal file
33
Lab3/Lab3/Lab3/Program.cs
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|
|||||||
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using System;
|
||||||
|
using System.Collections.Generic;
|
||||||
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|
||||||
|
class Lab3
|
||||||
|
{
|
||||||
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public static void Main(string[] args)
|
||||||
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{
|
||||||
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string text = "Вухатий великий синiй слон. Яблуко в саду. Зелене яблуко? Груша. Жовта слива висить у саду!";
|
||||||
|
Console.WriteLine(text );
|
||||||
|
|
||||||
|
// розділяємо текст на окремі речення
|
||||||
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string[] textSplit = text.Split(new[] { '.', '?', '!' }, StringSplitOptions.RemoveEmptyEntries);
|
||||||
|
|
||||||
|
// обчислюємо кількість слів у кожному реченні та створюємо масив з кількістю слів у реченнях
|
||||||
|
int[] amountOfWords = new int[textSplit.Length];
|
||||||
|
for (int i = 0; i < textSplit.Length; i++)
|
||||||
|
{
|
||||||
|
string[] words = textSplit[i].Trim().Split(' ', StringSplitOptions.RemoveEmptyEntries);
|
||||||
|
amountOfWords[i] = words.Length;
|
||||||
|
}
|
||||||
|
|
||||||
|
// створюємо Dictionary, де ключ - кількість слів у реченні, а значення - речення
|
||||||
|
Dictionary<string, int> sentenceDictionary = new Dictionary<string, int>();
|
||||||
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for (int i = 0; i < textSplit.Length; i++)
|
||||||
|
{
|
||||||
|
sentenceDictionary.Add(textSplit[i],amountOfWords[i] );
|
||||||
|
}
|
||||||
|
var sortedDict = sentenceDictionary.OrderBy(x => x.Value).ToDictionary(x => x.Key, x => x.Value);
|
||||||
|
|
||||||
|
|
||||||
|
Console.WriteLine(String.Join(";", sortedDict.Keys));
|
||||||
|
}
|
||||||
|
}
|
||||||
86
Lab3/Lab4/Lab4/Program.cs
Normal file
86
Lab3/Lab4/Lab4/Program.cs
Normal file
@@ -0,0 +1,86 @@
|
|||||||
|
using System;
|
||||||
|
using System.Collections.Generic;
|
||||||
|
using System.Linq;
|
||||||
|
using System.Text;
|
||||||
|
using System.Threading.Tasks;
|
||||||
|
|
||||||
|
namespace ConsoleApp1
|
||||||
|
{
|
||||||
|
class Furniture
|
||||||
|
{
|
||||||
|
// 5 полів
|
||||||
|
private string type;
|
||||||
|
private string material;
|
||||||
|
private string color;
|
||||||
|
private int price;
|
||||||
|
private int amount;
|
||||||
|
|
||||||
|
// конструктор з атрибутами
|
||||||
|
public Furniture(string type, string material, string color, int price, int amount)
|
||||||
|
{
|
||||||
|
this.type = type;
|
||||||
|
this.material = material;
|
||||||
|
this.color = color;
|
||||||
|
this.price = price;
|
||||||
|
this.amount = amount;
|
||||||
|
}
|
||||||
|
|
||||||
|
// методи для повернення атрибутів
|
||||||
|
public string getType()
|
||||||
|
{
|
||||||
|
return type;
|
||||||
|
}
|
||||||
|
|
||||||
|
public string getMaterial()
|
||||||
|
{
|
||||||
|
return material;
|
||||||
|
}
|
||||||
|
|
||||||
|
public string getColor()
|
||||||
|
{
|
||||||
|
return color;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int getPrice()
|
||||||
|
{
|
||||||
|
return price;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int getAmount()
|
||||||
|
{
|
||||||
|
return amount;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static void Main(string[] args)
|
||||||
|
{
|
||||||
|
|
||||||
|
Furniture[] furnitureArr = {
|
||||||
|
new Furniture("шафа", "дерево", "коричневий", 5000, 2),
|
||||||
|
new Furniture("стiл", "скло", "чорний", 3000, 3),
|
||||||
|
new Furniture("лiжко", "метал", "срiблястий", 8000, 1),
|
||||||
|
new Furniture("диван", "тканина", "сiрий", 10000, 2),
|
||||||
|
new Furniture("стiлець", "метал", "синій", 500, 4)
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
// Сортування масиву за ціною за зростанням
|
||||||
|
var sorted = furnitureArr.OrderBy(ob => ob.price).ToArray();
|
||||||
|
// Вивести відсортований масив
|
||||||
|
Console.WriteLine("Вiдсортований за цiною (за зростанням):");
|
||||||
|
foreach (Furniture f in sorted)
|
||||||
|
{
|
||||||
|
Console.WriteLine(f.getType() + " - " + f.getPrice() + " грн;");
|
||||||
|
}
|
||||||
|
Console.WriteLine(' ');
|
||||||
|
// Сортування масиву за кількістю за спаданням
|
||||||
|
var sortedReversery = furnitureArr.OrderBy(ob => ob.amount).ToArray().Reverse();
|
||||||
|
// Вивести відсортований масив
|
||||||
|
Console.WriteLine("Вiдсортований за кiлькiстю (за спаданням):");
|
||||||
|
foreach (Furniture f in sortedReversery)
|
||||||
|
{
|
||||||
|
Console.Write($"{f.getType()} - {f.getAmount()}; " );
|
||||||
|
}
|
||||||
|
Console.WriteLine(' ');
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
121
Lab6/Lab6/Program.cs
Normal file
121
Lab6/Lab6/Program.cs
Normal file
@@ -0,0 +1,121 @@
|
|||||||
|
using System;
|
||||||
|
using System.Collections.Generic;
|
||||||
|
using System.Diagnostics;
|
||||||
|
using System.Formats.Asn1;
|
||||||
|
|
||||||
|
// Визначити ієрархію рухомого складу залізничного транспорту.Створити пасажирський потяг.Порахувати загальну чисельність пасажирів і багажу в потязі.
|
||||||
|
// Провести сортування вагонів потягу за рівнем комфортності. Знайти вагон в потязі, що відповідає заданому діапазону кількості пасажирів.
|
||||||
|
|
||||||
|
|
||||||
|
class Lab6
|
||||||
|
{
|
||||||
|
public static void Main(string[] args)
|
||||||
|
{
|
||||||
|
List<Wagons> wagons = new List<Wagons>(); //створюємо лист-список вагонів;
|
||||||
|
|
||||||
|
// Додаємо вагони за допомогою класу Wagons;
|
||||||
|
wagons.Add(new Wagons.PassengerWagons("Пасажирський", 100, 100, "Вищий", 10));
|
||||||
|
wagons.Add(new Wagons.PassengerWagons("Пасажирський", 50, 48, "Середнiй", 20));
|
||||||
|
wagons.Add(new Wagons.PassengerWagons("Пасажирський", 20, 15, "Низький", 30));
|
||||||
|
wagons.Add(new Wagons.FreightWagons("Вантажний", 10, 10));
|
||||||
|
wagons.Add(new Wagons.FreightWagons("Вантажний", 20, 20));
|
||||||
|
wagons.Add(new Wagons.FreightWagons("Вантажний", 30, 30));
|
||||||
|
|
||||||
|
|
||||||
|
Console.WriteLine("Усi вагони:"); //відображення всіх вагонів;
|
||||||
|
|
||||||
|
foreach (Wagons wagon in wagons)
|
||||||
|
{
|
||||||
|
Console.WriteLine(wagon.GetType() + ": " + wagon.GetPassengers() + " пасажирiв(-а), " + wagon.GetBaggage() +
|
||||||
|
" валiз/контейнерiв, " + wagon.GetComfort() + ", " + wagon.GetAmount() + ";");
|
||||||
|
}
|
||||||
|
|
||||||
|
int amountOfPassangers = 0; //обчислення загальної кількості пасажирів;
|
||||||
|
foreach (Wagons p in wagons)
|
||||||
|
{
|
||||||
|
amountOfPassangers += p.GetPassengers();
|
||||||
|
}
|
||||||
|
|
||||||
|
var sorted = wagons.OrderByDescending(ob => ob.GetComfort()).ToArray(); //сортування вагонів за рівнем комфорту;
|
||||||
|
|
||||||
|
Console.WriteLine("\nКiлькiсть пасажирiв у пасажирському вагонi: " + amountOfPassangers + ";");
|
||||||
|
Console.WriteLine("\nВеддiть мiнiмальну кiлькiсть пасажирiв: ");
|
||||||
|
var minPassangers = Convert.ToInt32(Console.ReadLine());
|
||||||
|
Console.WriteLine("Веддiть максимальну кiлькiсть пасажирiв: ");
|
||||||
|
var maxPassangers = Convert.ToInt32(Console.ReadLine());
|
||||||
|
foreach (Wagons t in wagons)
|
||||||
|
{
|
||||||
|
if (t.GetPassengers() != null && t.GetPassengers() >= minPassangers && t.GetPassengers() <= maxPassangers) //пошук вагону за кількістю пасажирів;
|
||||||
|
{
|
||||||
|
Console.Write(t.GetType() + " - " + t.GetPassengers()+"; ");
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
throw (new InvalidOperationException("Немає такого вагону;"));
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
class Wagons
|
||||||
|
{
|
||||||
|
private string type; // тип вагону
|
||||||
|
private int passengers; // кількість пасажирів
|
||||||
|
private int baggage; // кількість багажу в тоннах
|
||||||
|
private string comfort; // рейтиг комфорту вагону
|
||||||
|
private int amount; // кількість вагонів
|
||||||
|
|
||||||
|
public Wagons(string type, int? passengers, int? baggage, string comfort, int amount) //конструктор вагонів;
|
||||||
|
{
|
||||||
|
this.type = type;
|
||||||
|
this.passengers = Convert.ToInt32(passengers);
|
||||||
|
this.baggage = Convert.ToInt32(baggage);
|
||||||
|
this.comfort = comfort;
|
||||||
|
this.amount = amount;
|
||||||
|
}
|
||||||
|
|
||||||
|
public string GetType() //геттери атрибутів класу;
|
||||||
|
{
|
||||||
|
return type;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int GetPassengers()
|
||||||
|
{
|
||||||
|
return passengers;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int? GetBaggage()
|
||||||
|
{
|
||||||
|
return baggage;
|
||||||
|
}
|
||||||
|
|
||||||
|
public string GetComfort()
|
||||||
|
{
|
||||||
|
return comfort;
|
||||||
|
}
|
||||||
|
|
||||||
|
public int GetAmount()
|
||||||
|
{
|
||||||
|
return amount;
|
||||||
|
}
|
||||||
|
|
||||||
|
// підклас Пасажирський вагон який наслідує батьківський клас Вагони;
|
||||||
|
public class PassengerWagons : Wagons
|
||||||
|
{
|
||||||
|
public PassengerWagons(string type, int passengers, int baggage, string comfort, int amount) : base(type,
|
||||||
|
passengers, baggage, comfort, amount)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// підклас Вантажний вагон який наслідує батьківський клас Вагони;
|
||||||
|
public class FreightWagons : Wagons
|
||||||
|
{
|
||||||
|
public FreightWagons(string type, int baggage, int amount) : base(type, null, baggage, null, amount)
|
||||||
|
{
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -1,11 +0,0 @@
|
|||||||
<?xml version="1.0" encoding="UTF-8"?>
|
|
||||||
<module type="JAVA_MODULE" version="4">
|
|
||||||
<component name="NewModuleRootManager" inherit-compiler-output="true">
|
|
||||||
<exclude-output />
|
|
||||||
<content url="file://$MODULE_DIR$">
|
|
||||||
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
|
|
||||||
</content>
|
|
||||||
<orderEntry type="inheritedJdk" />
|
|
||||||
<orderEntry type="sourceFolder" forTests="false" />
|
|
||||||
</component>
|
|
||||||
</module>
|
|
||||||
1
READ ME
Normal file
1
READ ME
Normal file
@@ -0,0 +1 @@
|
|||||||
|
Files with lab2,3,4 located in in Lab3. My excuses for confusing you
|
||||||
58
src/Lab1.java
Normal file
58
src/Lab1.java
Normal file
@@ -0,0 +1,58 @@
|
|||||||
|
public class Lab1 {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
// char c = 'a' + '1';
|
||||||
|
char c = 97;
|
||||||
|
// char c = '1';
|
||||||
|
System.out.println(c);
|
||||||
|
System.out.println((int) c);
|
||||||
|
c++;
|
||||||
|
System.out.println(c);
|
||||||
|
System.out.println((int) c);
|
||||||
|
System.out.println((double)'1'/'3');
|
||||||
|
|
||||||
|
// System.out.println( (double) 0 / 0 );
|
||||||
|
// System.out.println( Math.sqrt(-1) );
|
||||||
|
double s = 0;
|
||||||
|
/*for (int i = 1; i <= 3; i++) { // 1) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> i = 1, 2) <20><><EFBFBD><EFBFBD> <20> <= 3, 3) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䳿 <20> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>,
|
||||||
|
System.out.println(i); // 4) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><> 1, 5) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> 2
|
||||||
|
// s = s + i;
|
||||||
|
s += i;
|
||||||
|
}*/
|
||||||
|
/*int[] array = new int[2];
|
||||||
|
for (int i = 0; i < array.length; i++) {
|
||||||
|
|
||||||
|
}*/
|
||||||
|
final int A = -3;
|
||||||
|
final int B = 0;
|
||||||
|
final int N = 2;
|
||||||
|
final int M = 2;
|
||||||
|
|
||||||
|
final int C = 1;
|
||||||
|
// boolean wasDivisionByZero = false;
|
||||||
|
// todo char
|
||||||
|
// todo[clear code] think about avoiding brackets
|
||||||
|
if ((A <= -C && -C <= N) || (B <= 0 && 0 <= M)) {
|
||||||
|
System.out.println("Division by zero!");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
/*myLabel:*/for (int i = A; i <= N /*&& !wasDivisionByZero*/; i++) {
|
||||||
|
/*if (i + C == 0) { // todo optimize
|
||||||
|
System.out.println("Division by zero!");
|
||||||
|
wasDivisionByZero = true;
|
||||||
|
break; //todo flag vs return;
|
||||||
|
}*/
|
||||||
|
for (int j = B; j <= M; j++) {
|
||||||
|
/*if (j == 0) {
|
||||||
|
System.out.println("Division by zero!");
|
||||||
|
return;
|
||||||
|
// wasDivisionByZero = true;
|
||||||
|
// break myLabel;
|
||||||
|
}*/
|
||||||
|
s += (double) (i / j) / (i + C);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// if (!wasDivisionByZero) {
|
||||||
|
System.out.println("s = " + s);
|
||||||
|
// }
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -1,140 +0,0 @@
|
|||||||
package Lab1;
|
|
||||||
|
|
||||||
import java.util.InputMismatchException;
|
|
||||||
import java.util.Scanner;
|
|
||||||
|
|
||||||
public class Lab1 {
|
|
||||||
public static void main(String[] args) {
|
|
||||||
int C2, C3, C5, C7; // creating variables
|
|
||||||
int numBook = 2401; // default value of scorebook
|
|
||||||
|
|
||||||
Scanner sc = new Scanner(System.in); // scanner creating for inputing values from keyboard
|
|
||||||
System.out.println("By default number of scorebook is 2401. \nEnter to skip or input new value: ");
|
|
||||||
String input = sc.nextLine();
|
|
||||||
|
|
||||||
if (!input.equals("")) { // try-catch for checking correct inputing of value
|
|
||||||
try {
|
|
||||||
numBook = Math.abs(Integer.parseInt(input)); // scorebook can be only unsigned
|
|
||||||
} catch (NumberFormatException e) {
|
|
||||||
System.out.println("Invalid input. Using default value 2401"); // printing that will be used default value
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
String[] operations1 = {"+", "-"};//
|
|
||||||
String[] operations2 = {"*", "/", "%", "+", "-"}; // String array for choosing operations
|
|
||||||
String[] operations3 = {"byte", "short", "int", "long", "char", "float", "double"}; //
|
|
||||||
// determining variables
|
|
||||||
C2 = numBook % 2;
|
|
||||||
C3 = numBook % 3;
|
|
||||||
C5 = numBook % 5;
|
|
||||||
C7 = numBook % 7;
|
|
||||||
|
|
||||||
String O1 = operations1[C2];
|
|
||||||
int C = C3;
|
|
||||||
String O2 = operations2[C5];
|
|
||||||
String O3 = operations3[C7];
|
|
||||||
|
|
||||||
System.out.println("C2 is: " + C2 + ", operation is: " + O1); //
|
|
||||||
System.out.println("C3 is: " + C); // printing parameters that user got
|
|
||||||
System.out.println("C5 is: " + C5 + ", operation is: " + O2); //
|
|
||||||
System.out.println("C7 is: " + C7 + ", Type of indexes i and j is: " + O3); //
|
|
||||||
|
|
||||||
Number i = 0; // creating objects i j of (abstract)superclass Number
|
|
||||||
Number j = 0; //
|
|
||||||
|
|
||||||
|
|
||||||
System.out.println("\nEnter a value for i and j in the " + O3 + " type: ");
|
|
||||||
|
|
||||||
switch (O3) { // Choosing type of i and j by C7
|
|
||||||
case "byte" -> {
|
|
||||||
try {
|
|
||||||
i = sc.nextByte();
|
|
||||||
j = sc.nextByte();
|
|
||||||
} catch (InputMismatchException e) {
|
|
||||||
System.out.println("Invalid input. Please enter a valid byte value.");
|
|
||||||
sc.nextLine();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
case "short" -> {
|
|
||||||
i = sc.nextShort();
|
|
||||||
j = sc.nextShort();
|
|
||||||
}
|
|
||||||
case "int" -> {
|
|
||||||
i = sc.nextInt();
|
|
||||||
j = sc.nextInt();
|
|
||||||
}
|
|
||||||
case "long" -> {
|
|
||||||
i = sc.nextLong();
|
|
||||||
j = sc.nextLong();
|
|
||||||
}
|
|
||||||
case "char" -> {
|
|
||||||
System.out.println("Read only first character!");
|
|
||||||
i = (int) sc.next().charAt(0);
|
|
||||||
j = (int) sc.next().charAt(0);
|
|
||||||
}
|
|
||||||
case "float" -> {
|
|
||||||
i = sc.nextFloat();
|
|
||||||
j = sc.nextFloat();
|
|
||||||
}
|
|
||||||
case "double" -> {
|
|
||||||
i = sc.nextDouble();
|
|
||||||
j = sc.nextDouble();
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
System.out.println("The value of the created variables is: " + i + " and " + j);
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
class Sum { // creating class Sum
|
|
||||||
int n, m;
|
|
||||||
double i, j;
|
|
||||||
|
|
||||||
public Sum(double i, double j, int n, int m) { // Constructor to initialize all variables
|
|
||||||
this.i = i;
|
|
||||||
this.j = j;
|
|
||||||
this.n = n;
|
|
||||||
this.m = m;
|
|
||||||
}
|
|
||||||
|
|
||||||
public void calc() { // create method for our class
|
|
||||||
double sum = 0, result = 0, result2 = 0;
|
|
||||||
if ((O1.equals("-") && i + n >= C && i <= C) || (C == 0 && i == 0)) { // exclude situations
|
|
||||||
System.out.println("dividing by zero!"); // with dividing by 0
|
|
||||||
} else if (i > n || j > m) {
|
|
||||||
System.out.println("i or j greater than n or m");
|
|
||||||
} else {
|
|
||||||
for (double b = i; b <= n; b++) {
|
|
||||||
for (double a = j; a <= m; a++) {
|
|
||||||
switch (O2) {
|
|
||||||
case "+" -> result = b + a;
|
|
||||||
case "-" -> result = b - a;
|
|
||||||
case "*" -> result = b * a;
|
|
||||||
case "/" -> result = b / a;
|
|
||||||
case "%" -> result = b % a;
|
|
||||||
}
|
|
||||||
switch (O1) {
|
|
||||||
case "+" -> result2 = b + C;
|
|
||||||
case "-" -> result2 = b - C;
|
|
||||||
}
|
|
||||||
sum += result / result2;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
System.out.println("Sum is: " + sum);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
System.out.print("Enter value for n and m: \n");
|
|
||||||
|
|
||||||
int n = sc.nextInt();
|
|
||||||
int m = sc.nextInt();
|
|
||||||
|
|
||||||
Sum sum = new Sum(i.doubleValue(), j.doubleValue(), n, m); // creating new instance of Sum class
|
|
||||||
// .doubleValue() converting our variables to double
|
|
||||||
sum.calc();
|
|
||||||
sc.close();
|
|
||||||
}
|
|
||||||
}
|
|
||||||
26
src/Lab2.java
Normal file
26
src/Lab2.java
Normal file
@@ -0,0 +1,26 @@
|
|||||||
|
public class Lab2 {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
int[] array = {1, 2, 3};
|
||||||
|
/*for (int i = 0; i < array.length; i++) {
|
||||||
|
if (i % 2 == 0) {
|
||||||
|
System.out.println("!" + array[i]);
|
||||||
|
} else {
|
||||||
|
System.out.println("?" + array[i]);
|
||||||
|
}
|
||||||
|
}*/
|
||||||
|
|
||||||
|
for (int i = 0; i < array.length; i+=2) {
|
||||||
|
System.out.println("!" + array[i]);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (int i = 1; i < array.length; i+=2) {
|
||||||
|
System.out.println("?" + array[i]);
|
||||||
|
}
|
||||||
|
|
||||||
|
// зубчасті матриці
|
||||||
|
int[][] matrix = {
|
||||||
|
{1, 2},
|
||||||
|
{3}
|
||||||
|
};
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -1,153 +0,0 @@
|
|||||||
package Lab2;
|
|
||||||
|
|
||||||
import java.util.Scanner;
|
|
||||||
import java.util.Random;
|
|
||||||
|
|
||||||
public class Lab2 {
|
|
||||||
public static void main(String[] args) {
|
|
||||||
final int C5, C7, C11, NumBook;
|
|
||||||
NumBook = 2401;
|
|
||||||
C5 = NumBook % 5;
|
|
||||||
C7 = NumBook % 7;
|
|
||||||
C11 = NumBook % 11;
|
|
||||||
System.out.println("-----------------------------------------------------");
|
|
||||||
System.out.println("C5 is: " + C5 + " - act with martix is C=Bт");
|
|
||||||
System.out.println("C7 is: " + C7 + " - type of elements is double");
|
|
||||||
System.out.println("C11 is: " + C11 + " - calculate the sum of the largest elements\n" +
|
|
||||||
"of each row of the matrix");
|
|
||||||
System.out.println("-----------------------------------------------------");
|
|
||||||
int Mside = 0;
|
|
||||||
int Nside = 0;
|
|
||||||
int Choose;
|
|
||||||
double MaxSum = 0;
|
|
||||||
Random rand = new Random();
|
|
||||||
Scanner sc = new Scanner(System.in);
|
|
||||||
|
|
||||||
while (true) {
|
|
||||||
try {
|
|
||||||
System.out.print("Enter random or handle input(1 or 0): ");
|
|
||||||
Choose = Math.abs(Integer.parseInt(sc.nextLine()));
|
|
||||||
if (Choose == 1 || Choose == 0) {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
} catch (NumberFormatException e) {
|
|
||||||
System.out.println("Invalid input. Please enter an integer.");
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
while (true) {
|
|
||||||
try {
|
|
||||||
System.out.print("Enter number of rows: ");
|
|
||||||
Mside = Math.abs(Integer.parseInt(sc.nextLine()));
|
|
||||||
if (Mside <= 0) {
|
|
||||||
System.out.println("Invalid input. Number of rows must be greater than 0");
|
|
||||||
|
|
||||||
} else {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
} catch (NumberFormatException e) {
|
|
||||||
System.out.println("Invalid input. Please enter an integer.");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
while (true) {
|
|
||||||
try {
|
|
||||||
System.out.print("Enter number of columns: ");
|
|
||||||
Nside = Math.abs(Integer.parseInt(sc.nextLine()));
|
|
||||||
if (Nside <= 0) {
|
|
||||||
System.out.println("Invalid input. Number of columns must be greater than 0");
|
|
||||||
|
|
||||||
} else {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
} catch (NumberFormatException e) {
|
|
||||||
System.out.println("Invalid input. Please enter an integer.");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
final int lenghtMaxElements = 5;
|
|
||||||
double[][] CArray = new double[Mside][Nside];
|
|
||||||
double[][] TransposedArray = new double[Nside][Mside];
|
|
||||||
double[][] MaxElements = new double[Nside][lenghtMaxElements];
|
|
||||||
if (Choose == 1) {
|
|
||||||
for (int i = 0; i < Mside; i++) {
|
|
||||||
for (int j = 0; j < Nside; j++) {
|
|
||||||
CArray[i][j] = rand.nextDouble(-100, 100);
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if (Choose == 0) {
|
|
||||||
for (int i = 0; i < Mside; i++) {
|
|
||||||
for (int j = 0; j < Nside; j++) {
|
|
||||||
while (true) {
|
|
||||||
try {
|
|
||||||
System.out.printf("Enter the element at position (%d,%d): ", i + 1, j + 1);
|
|
||||||
CArray[i][j] = Double.parseDouble(sc.nextLine());
|
|
||||||
break;
|
|
||||||
} catch (NumberFormatException e) {
|
|
||||||
System.out.println("Invalid input. Please enter a valid number.");
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
for (int i = 0; i < Mside; i++) {
|
|
||||||
for (int j = 0; j < Nside; j++) {
|
|
||||||
System.out.printf("%8.2f", CArray[i][j]);
|
|
||||||
}
|
|
||||||
System.out.println();
|
|
||||||
}
|
|
||||||
|
|
||||||
for (int i = 0; i < Nside; i++) {
|
|
||||||
for (int j = 0; j < Mside; j++) {
|
|
||||||
TransposedArray[i][j] = CArray[j][i];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
System.out.println("Transposed array is:");
|
|
||||||
int row, cols;
|
|
||||||
for (row = 0; row < Nside; row++) {
|
|
||||||
for (cols = 0; cols < Mside; cols++) {
|
|
||||||
System.out.printf("%8.2f", TransposedArray[row][cols]);
|
|
||||||
|
|
||||||
}
|
|
||||||
System.out.println();
|
|
||||||
}
|
|
||||||
|
|
||||||
for (int i = 0; i < Nside; i++) {
|
|
||||||
MaxElements[i][0] = TransposedArray[i][0];
|
|
||||||
|
|
||||||
for (int j = 1; j < Mside; j++) {
|
|
||||||
MaxElements[i][1] = i;
|
|
||||||
if (TransposedArray[i][j] > MaxElements[i][0]) {
|
|
||||||
MaxElements[i][0] = TransposedArray[i][j];
|
|
||||||
MaxElements[i][2] = j;
|
|
||||||
|
|
||||||
|
|
||||||
} else if (TransposedArray[i][j] == MaxElements[i][0]) {
|
|
||||||
MaxElements[i][3] = MaxElements[i][0];
|
|
||||||
MaxElements[i][4] = 1;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
}
|
|
||||||
//System.out.println(MaxElements[i][0] +" "+ MaxElements[i][1] +" "+ MaxElements[i][2] + " " + MaxElements[i][3] + " " + MaxElements[i][4]);
|
|
||||||
//code i used for debug
|
|
||||||
}
|
|
||||||
System.out.println("Max elements for each row:");
|
|
||||||
if (Mside == 1) {
|
|
||||||
System.out.println("I can`t find max element for mx1 matrix");
|
|
||||||
|
|
||||||
} else {
|
|
||||||
for (int i = 0; i < Nside; i++) {
|
|
||||||
if (MaxElements[i][0] == MaxElements[i][3] && MaxElements[i][4] == 1) {
|
|
||||||
System.out.printf("In row %1.0f does not exist a max element\n", MaxElements[i][1] + 1);
|
|
||||||
} else {
|
|
||||||
System.out.printf("%8.2f is max value and his coordinate: (%1.0f, %1.0f)\n", MaxElements[i][0], MaxElements[i][1] + 1, MaxElements[i][2] + 1);
|
|
||||||
MaxSum += MaxElements[i][0];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
System.out.printf("Sum of elements with max values is: %.2f\n", MaxSum);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
42
src/Main.java
Normal file
42
src/Main.java
Normal file
@@ -0,0 +1,42 @@
|
|||||||
|
public class Main {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
System.out.println(args[2]);
|
||||||
|
System.out.println("Hello world!");
|
||||||
|
// System.out.println(1);
|
||||||
|
|
||||||
|
int a = 1;
|
||||||
|
int b = 2;
|
||||||
|
int c = 1;
|
||||||
|
int d = 1;
|
||||||
|
|
||||||
|
System.out.println(2&1);
|
||||||
|
System.out.println(2|1);
|
||||||
|
int aa = 2;
|
||||||
|
|
||||||
|
/*if (aa) {
|
||||||
|
|
||||||
|
}*/
|
||||||
|
|
||||||
|
// System.out.println("a"&"b");
|
||||||
|
System.out.println('a'&'b');
|
||||||
|
|
||||||
|
if ((a > b) & MyBooleanMethod()) {
|
||||||
|
System.out.println("?????????????????????????");
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
static boolean MyBooleanMethod() {
|
||||||
|
System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
void myFunction() {
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
int myFunction2() {
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
20
src/encapsulationInheritancePolymorphism/Encapsulation.java
Normal file
20
src/encapsulationInheritancePolymorphism/Encapsulation.java
Normal file
@@ -0,0 +1,20 @@
|
|||||||
|
package encapsulationInheritancePolymorphism;
|
||||||
|
|
||||||
|
public class Encapsulation {
|
||||||
|
/*private*/ int field;
|
||||||
|
private int field2;
|
||||||
|
// int a = 1;
|
||||||
|
|
||||||
|
public void myMethodForTheField () {
|
||||||
|
System.out.println(field);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void myMethodForTheField2 () {
|
||||||
|
System.out.println(field);
|
||||||
|
}
|
||||||
|
|
||||||
|
public void myMethodForTheFieldAndTheField2 () {
|
||||||
|
System.out.println(field);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
@@ -0,0 +1,10 @@
|
|||||||
|
package encapsulationInheritancePolymorphism;
|
||||||
|
|
||||||
|
public class EncapsulationInheritancePolymorphism {
|
||||||
|
|
||||||
|
public static void main(String[] args) {
|
||||||
|
int a = 1;
|
||||||
|
// var b = 2;
|
||||||
|
// System.out.println(b);
|
||||||
|
}
|
||||||
|
}
|
||||||
14
src/encapsulationInheritancePolymorphism/Main.java
Normal file
14
src/encapsulationInheritancePolymorphism/Main.java
Normal file
@@ -0,0 +1,14 @@
|
|||||||
|
package encapsulationInheritancePolymorphism;
|
||||||
|
|
||||||
|
public class Main {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
Student student = new Student();
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
//...
|
||||||
|
|
||||||
|
student.setFaculty("FPM", "MO-22");
|
||||||
|
}
|
||||||
|
}
|
||||||
18
src/encapsulationInheritancePolymorphism/Student.java
Normal file
18
src/encapsulationInheritancePolymorphism/Student.java
Normal file
@@ -0,0 +1,18 @@
|
|||||||
|
package encapsulationInheritancePolymorphism;
|
||||||
|
|
||||||
|
public class Student {
|
||||||
|
private String name;
|
||||||
|
private String surname;
|
||||||
|
private String group;
|
||||||
|
private String faculty;
|
||||||
|
|
||||||
|
|
||||||
|
public String getName() {
|
||||||
|
return name;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setFaculty(String faculty, String group) {
|
||||||
|
this.faculty = faculty;
|
||||||
|
this.group = group;
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -0,0 +1,9 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.inheritance;
|
||||||
|
|
||||||
|
public class ElectricEngine extends Engine {
|
||||||
|
private String batteryType;
|
||||||
|
|
||||||
|
/*private class Engine {
|
||||||
|
private int power;
|
||||||
|
}*/
|
||||||
|
}
|
||||||
@@ -0,0 +1,5 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.inheritance;
|
||||||
|
|
||||||
|
public class Engine {
|
||||||
|
private int power;
|
||||||
|
}
|
||||||
@@ -0,0 +1,5 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.inheritance;
|
||||||
|
|
||||||
|
public class FuelEngine extends Engine {
|
||||||
|
private String fuelType;
|
||||||
|
}
|
||||||
@@ -0,0 +1,8 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.inheritance;
|
||||||
|
|
||||||
|
public class Main {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
ElectricEngine electricEngine = new ElectricEngine(); // створення нового об'єкту (екземпляру) класу ElectricEngine
|
||||||
|
FuelEngine fuelEngine = new FuelEngine();
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -0,0 +1,14 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.polymorphism;
|
||||||
|
|
||||||
|
public class ElectricEngine extends Engine {
|
||||||
|
private String batteryType;
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public int getPower() {
|
||||||
|
return 20;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*private class Engine {
|
||||||
|
private int power;
|
||||||
|
}*/
|
||||||
|
}
|
||||||
@@ -0,0 +1,9 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.polymorphism;
|
||||||
|
|
||||||
|
public class Engine {
|
||||||
|
private int power;
|
||||||
|
|
||||||
|
public int getPower() {
|
||||||
|
return power;
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -0,0 +1,10 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.polymorphism;
|
||||||
|
|
||||||
|
public class FuelEngine extends Engine {
|
||||||
|
private String fuelType;
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public int getPower() {
|
||||||
|
return 50;
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -0,0 +1,38 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.polymorphism;
|
||||||
|
|
||||||
|
/*import encapsulationInheritancePolymorphism.inheritance.ElectricEngine;
|
||||||
|
import encapsulationInheritancePolymorphism.inheritance.FuelEngine;*/
|
||||||
|
|
||||||
|
public class Main {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
/*encapsulationInheritancePolymorphism.inheritance.*/ElectricEngine electricEngine = new ElectricEngine(); // створення нового об'єкту (екземпляру) класу ElectricEngine
|
||||||
|
/*encapsulationInheritancePolymorphism.inheritance.*/FuelEngine fuelEngine = new FuelEngine();
|
||||||
|
|
||||||
|
Engine engine1 = fuelEngine;
|
||||||
|
|
||||||
|
Engine[] engines = {
|
||||||
|
electricEngine,
|
||||||
|
fuelEngine
|
||||||
|
};
|
||||||
|
|
||||||
|
for (Engine engine : engines) {
|
||||||
|
System.out.println(engine.getPower());
|
||||||
|
}
|
||||||
|
|
||||||
|
/*for (int i = 0; i < engines.length; i++) {
|
||||||
|
System.out.println(engines[i].getPower());
|
||||||
|
}*/
|
||||||
|
|
||||||
|
// +
|
||||||
|
int a = 1;
|
||||||
|
int b = 1;
|
||||||
|
int c = a + b;
|
||||||
|
System.out.println(c);
|
||||||
|
|
||||||
|
|
||||||
|
String sA = "1";
|
||||||
|
String sB = "1";
|
||||||
|
String sC = sA + sB;
|
||||||
|
System.out.println(sC);
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -0,0 +1,19 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.polymorphism.enhanced;
|
||||||
|
|
||||||
|
public class ElectricEngine extends Engine {
|
||||||
|
private String batteryType;
|
||||||
|
private int chargeLevel = 9;
|
||||||
|
private int criticalChargeLevel = 10;
|
||||||
|
private float coefficientCriticalPowerCut = 0.1f;
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public int getPower() {
|
||||||
|
return chargeLevel > criticalChargeLevel
|
||||||
|
? super.getPower()
|
||||||
|
: (int) (super.getPower() * coefficientCriticalPowerCut);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*private class Engine {
|
||||||
|
private int power;
|
||||||
|
}*/
|
||||||
|
}
|
||||||
@@ -0,0 +1,9 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.polymorphism.enhanced;
|
||||||
|
|
||||||
|
public class Engine {
|
||||||
|
private int power = 100;
|
||||||
|
|
||||||
|
public int getPower() {
|
||||||
|
return power;
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -0,0 +1,10 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.polymorphism.enhanced;
|
||||||
|
|
||||||
|
public class FuelEngine extends Engine {
|
||||||
|
private String fuelType;
|
||||||
|
|
||||||
|
/*public int getPower() {
|
||||||
|
return 50;
|
||||||
|
}*/
|
||||||
|
|
||||||
|
}
|
||||||
@@ -0,0 +1,28 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.polymorphism.enhanced;
|
||||||
|
|
||||||
|
/*import encapsulationInheritancePolymorphism.inheritance.ElectricEngine;
|
||||||
|
import encapsulationInheritancePolymorphism.inheritance.FuelEngine;*/
|
||||||
|
|
||||||
|
public class Main {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
/*encapsulationInheritancePolymorphism.inheritance.*/
|
||||||
|
ElectricEngine electricEngine = new ElectricEngine(); // створення нового об'єкту (екземпляру) класу ElectricEngine
|
||||||
|
/*encapsulationInheritancePolymorphism.inheritance.*/
|
||||||
|
FuelEngine fuelEngine = new FuelEngine();
|
||||||
|
|
||||||
|
Engine engine1 = fuelEngine;
|
||||||
|
|
||||||
|
Engine[] engines = {
|
||||||
|
electricEngine,
|
||||||
|
fuelEngine
|
||||||
|
};
|
||||||
|
|
||||||
|
for (Engine engine : engines) {
|
||||||
|
System.out.println(engine.getPower());
|
||||||
|
}
|
||||||
|
|
||||||
|
/*for (int i = 0; i < engines.length; i++) {
|
||||||
|
System.out.println(engines[i].getPower());
|
||||||
|
}*/
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -0,0 +1,17 @@
|
|||||||
|
package encapsulationInheritancePolymorphism.polymorphism.overload;
|
||||||
|
|
||||||
|
public class MyClassForOverloadExample {
|
||||||
|
void myMethod(int a) {
|
||||||
|
System.out.println("Integer: " + a);
|
||||||
|
}
|
||||||
|
|
||||||
|
void myMethod(double a) {
|
||||||
|
System.out.println("Double: " + a);
|
||||||
|
}
|
||||||
|
|
||||||
|
public static void main(String[] args) {
|
||||||
|
MyClassForOverloadExample overload = new MyClassForOverloadExample();
|
||||||
|
overload.myMethod(1);
|
||||||
|
overload.myMethod(0.1);
|
||||||
|
}
|
||||||
|
}
|
||||||
13
src/test/A.java
Normal file
13
src/test/A.java
Normal file
@@ -0,0 +1,13 @@
|
|||||||
|
package test;
|
||||||
|
|
||||||
|
public class A {
|
||||||
|
/*private*/ int f/* = 3*/;
|
||||||
|
|
||||||
|
public int getF() {
|
||||||
|
return f;
|
||||||
|
}
|
||||||
|
|
||||||
|
public void setF(int f) {
|
||||||
|
this.f = f;
|
||||||
|
}
|
||||||
|
}
|
||||||
15
src/test/Main.java
Normal file
15
src/test/Main.java
Normal file
@@ -0,0 +1,15 @@
|
|||||||
|
package test;
|
||||||
|
|
||||||
|
public class Main {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
A a = new A();
|
||||||
|
System.out.println(a.getF());
|
||||||
|
a.setF(1);
|
||||||
|
System.out.println(a.getF());
|
||||||
|
|
||||||
|
System.out.println(a.f);
|
||||||
|
|
||||||
|
int[] array = {1, 2, 1};
|
||||||
|
System.out.println(array.length);
|
||||||
|
}
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user