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8 Commits

Author SHA1 Message Date
Oleksii Aleshchenko
81ac59840f Revert "Done lab 1-3"
This reverts commit 29e63163a4.
2023-04-04 22:33:00 +03:00
Oleksii Aleshchenko
1e6825d7d4 Revert "Delete lab1 directory"
This reverts commit 1af299f8f7.
2023-04-04 22:32:47 +03:00
Oleksii Aleshchenko
4087daef02 Revert "Delete lab2 directory"
This reverts commit 3bbb7c8e54.
2023-04-04 22:32:36 +03:00
Oleksii Aleshchenko
31ba116ad8 Revert "Delete lab3 directory"
This reverts commit 6fc3cc244e.
2023-04-04 22:32:00 +03:00
xivihwa
6fc3cc244e Delete lab3 directory 2023-04-04 17:44:45 +03:00
xivihwa
3bbb7c8e54 Delete lab2 directory 2023-04-04 17:44:38 +03:00
xivihwa
1af299f8f7 Delete lab1 directory 2023-04-04 17:44:30 +03:00
xivihwa
4924bbe62f Merge pull request #2 from ASDjonok/ІО-25/01-Антоненко-Віолетта-Станіславівна
Done lab 1-3
2023-04-04 17:41:26 +03:00
99 changed files with 601 additions and 908 deletions

4
.gitignore vendored
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2
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5
.idea/modules.xml generated
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2
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# Laboratory OOP - IO-2x - 2023
Antonenko Violetta

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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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Main.java

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
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<module fileurl="file://$PROJECT_DIR$/FunctionCalculator.iml" filepath="$PROJECT_DIR$/FunctionCalculator.iml" />
</modules>
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import java.util.Scanner;
public class Main {
public static void main(String[] args) {
//C2 = 2501 % 2 = 1, і операція O1 буде відніманням (-).
//C3 = 2501 % 3 = 2
//C5 = 2501 % 5 = 1, і операція O2 буде діленням (/).
//C7 = 2501 % 7 = 4, тип індексів i та j буде char.
double result = 0; // результат
char i, j;
char operation1 = '-';
double constant = 2.0;
Scanner scanner = new Scanner(System.in);
System.out.print("Введіть значення n: ");
int n = scanner.nextInt();
System.out.print("Введіть значення m: ");
int m = scanner.nextInt();
// Обчислення значення функції S
for (i = 'a'; i <= 'a' + n - 1; i++) {
for (j = 'b'; j <= 'b' + m - 1; j++) {
try {
double value = (double) i / applyOperation(j, operation1, constant);
result += value;
} catch (ArithmeticException e) {
System.out.println("Ділення на нуль: " + e.getMessage());
} catch (Exception e) {
System.out.println("Виникла помилка: " + e.getMessage());
}
}
}
// Виведення результату
System.out.println("Результат: " + result);
}
// Метод, який застосовує операцію О1 до двох чисел
public static double applyOperation(char j, char operation, double constant) throws Exception {
switch (operation) {
case '-':
return (double) j - constant;
case '/':
if (constant == 0.0) {
throw new ArithmeticException("C не може бути рівним нулю");
} else {
return (double) j / constant;
}
default:
throw new Exception("Непідтримувана операція: " + operation);
}
}
}

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<?xml version="1.0" encoding="UTF-8"?>
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8
lab2/Matrix/.idea/.gitignore generated vendored
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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Main.java

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
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<?xml version="1.0" encoding="UTF-8"?>
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<module fileurl="file://$PROJECT_DIR$/Matrix.iml" filepath="$PROJECT_DIR$/Matrix.iml" />
</modules>
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@@ -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>

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import java.util.Arrays;
public class Main {
public static void main(String[] args) {
byte[][] matrix = {{4, 7, 3}, {4, 7, 6}, {7, 10, 9}};
//C5 = 2501 mod 5 = 1, тому C = B^T (транспонування матриці)
//C7 = 2501 mod 7 = 1, тому тип елементів матриці має бути byte
//C11 = 2501 mod 11 = 10, тому треба знайти середнє значення елементів матриці
// Виконуємо дію з матрицею: транспонування матриці B
byte[][] transposedMatrix = transposeMatrix(matrix);
System.out.println("Transposed matrix: ");
printMatrix(transposedMatrix);
// Виконуємо дію з матрицею C: знаходимо середнє значення елементів матриці
double average = calculateAverage(transposedMatrix);
System.out.println("Cереднє значення елементів матриці: " + average);
}
// Метод для транспонування матриці
private static byte[][] transposeMatrix(byte[][] matrix) {
int rows = matrix.length;
int columns = matrix[0].length;
byte[][] transposedMatrix = new byte[columns][rows];
for (int i = 0; i < rows; i++) {
for (int j = 0; j < columns; j++) {
transposedMatrix[j][i] = matrix[i][j];
}
}
return transposedMatrix;
}
// Метод для знаходження середнього значення елементів матриці
private static double calculateAverage(byte[][] matrix) {
int rows = matrix.length;
int columns = matrix[0].length;
int sum = 0;
for (int i = 0; i < rows; i++) {
for (int j = 0; j < columns; j++) {
sum += matrix[i][j];
}
}
return (double) sum / (rows * columns);
}
// Метод для виведення матриці на екран
private static void printMatrix(byte[][] matrix) {
for (byte[] row : matrix) {
System.out.println(Arrays.toString(row));
}
}
}

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<?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://$MODULE_DIR$">
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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Main.java

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/OperationsStrings.iml" filepath="$PROJECT_DIR$/OperationsStrings.iml" />
</modules>
</component>
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@@ -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>

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@@ -1,25 +0,0 @@
import java.util.HashSet;
public class Main {
public static void main(String[] args) {
String inputText = "Who are you? What is your name? Where are you from?";
int targetLength = 3;
try {
HashSet<String> uniqueWords = new HashSet<String>();
String[] sentences = inputText.split("[?]");
for (String sentence : sentences) {
String[] words = sentence.trim().split("\\s+");
for (String word : words) {
if (word.length() == targetLength) {
uniqueWords.add(word.toLowerCase());
}
}
}
System.out.println("Unique words of length " + targetLength + " in the input text are: " + uniqueWords);
} catch (Exception e) {
System.out.println("An error occurred: " + e.getMessage());
}
}
}

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@@ -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://$MODULE_DIR$">
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</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

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8
lab4/.idea/.gitignore generated vendored
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

9
lab4/.idea/lab4.iml generated
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@@ -1,9 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
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@@ -1,8 +0,0 @@
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6
lab4/.idea/vcs.xml generated
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@@ -1,6 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$/.." vcs="Git" />
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@@ -1,8 +0,0 @@
# Default ignored files
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# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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@@ -1,6 +0,0 @@
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<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
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@@ -1,8 +0,0 @@
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<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/EducationalInstitution.iml" filepath="$PROJECT_DIR$/EducationalInstitution.iml" />
</modules>
</component>
</project>

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@@ -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>

8
lab4/untitled/.idea/.gitignore generated vendored
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@@ -1,8 +0,0 @@
# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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@@ -1,6 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

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@@ -1,8 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/untitled.iml" filepath="$PROJECT_DIR$/untitled.iml" />
</modules>
</component>
</project>

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@@ -1,56 +0,0 @@
import java.util.*;
public class Main {
public static void main(String[] args) {
List<SeaShip> ships = createList();
printList(ships);
ships = sortList(ships);
System.out.println("==============================");
printList(ships);
}
private static ArrayList<SeaShip> createList() {
ArrayList<SeaShip> ships = new ArrayList<>();
Random random = new Random();
for (int i = 0; i < 10; i++)
ships.add(new SeaShip("name" + (i + 1), "class" + (i + 1), "type" + (i + 1),
random.nextInt(10000) + 1000, random.nextDouble() * 100 + 20,
random.nextInt(10000) + 1000, random.nextDouble() * 100));
// ships.add(new SeaShip("nameA", "classA", "typeA",
// random.nextInt(10000) + 1000, 100d,
// random.nextInt(10000) + 1000, 120d));
// ships.add(new SeaShip("nameA", "classA", "typeA",
// random.nextInt(10000) + 1000, 100d,
// random.nextInt(10000) + 1000, 130d));
// ships.add(new SeaShip("nameA", "classA", "typeA",
// random.nextInt(10000) + 1000, 100d,
// random.nextInt(10000) + 1000, 140d));
// ships.add(new SeaShip("nameA", "classA", "typeA",
// random.nextInt(10000) + 1000, 120d,
// random.nextInt(10000) + 1000, 120d));
// ships.add(new SeaShip("nameA", "classA", "typeA",
// random.nextInt(10000) + 1000, 120d,
// random.nextInt(10000) + 1000, 100d));
return ships;
}
private static List<SeaShip> sortList(List<SeaShip> list) {
Comparator<SeaShip> comparator = Comparator.comparing(SeaShip::getLength).reversed()
.thenComparing(SeaShip::getMaxSpeed);
list.sort(comparator);
return list;
}
private static void printList(List<SeaShip> list) {
list.forEach(System.out::println);
}
}

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@@ -1,86 +0,0 @@
public class SeaShip {
private String name;
private String shipClass;
private String type;
private Integer weight;
private Double length;
private Integer power;
private Double maxSpeed;
public SeaShip(String name, String shipClass, String type,
Integer weight, Double length, Integer power, Double maxSpeed) {
this.name = name;
this.shipClass = shipClass;
this.type = type;
this.weight = weight;
this.length = length;
this.power = power;
this.maxSpeed = maxSpeed;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getShipClass() {
return shipClass;
}
public void setShipClass(String shipClass) {
this.shipClass = shipClass;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Integer getWeight() {
return weight;
}
public void setWeight(Integer weight) {
this.weight = weight;
}
public Double getLength() {
return length;
}
public void setLength(Double length) {
this.length = length;
}
public Integer getPower() {
return power;
}
public void setPower(Integer power) {
this.power = power;
}
public Double getMaxSpeed() {
return maxSpeed;
}
public void setMaxSpeed(Double maxSpeed) {
this.maxSpeed = maxSpeed;
}
@Override
public String toString() {
return "Sea ship '" + name + "', class: " + shipClass + ", type: " + type + ".\n" +
"Weight: " + weight + "\n" +
"Length: " + length + "\n" +
"Engine power: " + power + "\n" +
"Max speed: " + maxSpeed + "\n";
}
}

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@@ -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>

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8
lab5/untitled/.idea/.gitignore generated vendored
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@@ -1,8 +0,0 @@
# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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@@ -1,6 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

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@@ -1,8 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/untitled.iml" filepath="$PROJECT_DIR$/untitled.iml" />
</modules>
</component>
</project>

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@@ -1,166 +0,0 @@
import java.util.HashSet;
public class Main {
public static void main(String[] args) {
String inputText = "Раз два три, літо прийди! По ООП сто балів захвати. ім'я запише без апострофу, ех"; //вход даних, текст
int targetLength = 3; //змінна, кількість літер в слові
try {
TextProcessor textProcessor = new TextProcessor();
HashSet<Word> uniqueWords = textProcessor.findUniqueWordsWithLength(inputText, targetLength);
System.out.println("Unique words of length " + targetLength + " in the input text are: " + uniqueWords);// вивод повідомлення, що містить довжину та унікальні слова змінної
} catch (Exception e) {
System.out.println("An error occurred: " + e.getMessage());//вивиод помилки
}
}
}
class Letter {
private char value;
public Letter(char value) {
this.value = value;
}
public char getValue() {
return value;
}
public void setValue(char value) {
this.value = value;
}
}
class Word {
private Letter[] letters;
public Word(Letter[] letters) {
this.letters = letters;
}
public Letter[] getLetters() {
return letters;
}
public void setLetters(Letter[] letters) {
this.letters = letters;
}
public int getLength() {
return letters.length;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
for (Letter letter : letters) {
sb.append(letter.getValue());
}
return sb.toString();
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
Word other = (Word) obj;
return this.toString().equals(other.toString());
}
@Override
public int hashCode() {
return this.toString().hashCode();
}
}
class Sentence {
private Word[] words;
private String punctuation;
public Sentence(Word[] words, String punctuation) {
this.words = words;
this.punctuation = punctuation;
}
public Word[] getWords() {
return words;
}
public void setWords(Word[] words) {
this.words = words;
}
public String getPunctuation() {
return punctuation;
}
public void setPunctuation(String punctuation) {
this.punctuation = punctuation;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
for (Word word : words) {
sb.append(word.toString()).append(" ");
}
sb.append(punctuation);
return sb.toString();
}
}
class Text {
private Sentence[] sentences;
public Text(Sentence[] sentences) {
this.sentences = sentences;
}
public Sentence[] getSentences() {
return sentences;
}
public void setSentences(Sentence[] sentences) {
this.sentences = sentences;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
for (Sentence sentence : sentences) {
sb.append(sentence.toString());
}
return sb.toString();
}
}
class TextProcessor {
public HashSet<Word> findUniqueWordsWithLength(String inputText, int targetLength) {
HashSet<Word> uniqueWords = new HashSet<>();
String[] sentenceStrings = inputText.split("[?]");
for (String sentenceString : sentenceStrings) {
String[] wordStrings = sentenceString.trim().split("\\s+");
for (String wordString : wordStrings) {
wordString = wordString.replaceAll("[\\t\\s]+", " "); // Заміна послідовності табуляцій та пробілів одним пробілом
wordString = wordString.replaceAll("[^\\p{L}\\s]", ""); // Вилучення розділових знаків
wordString = wordString.toLowerCase(); // Перетворення на нижній регістр
wordString = wordString.replace("", ""); // Вилучення апострофів
if (wordString.length() == targetLength) {
Letter[] letters = new Letter[wordString.length()];
for (int i = 0; i < wordString.length(); i++) {
letters[i] = new Letter(wordString.charAt(i));
}
Word word = new Word(letters);
uniqueWords.add(word);
}
}
}
return uniqueWords;
}
}

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@@ -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>

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8
lab6/untitled/.idea/.gitignore generated vendored
View File

@@ -1,8 +0,0 @@
# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

View File

@@ -1,6 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

View File

@@ -1,8 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/untitled.iml" filepath="$PROJECT_DIR$/untitled.iml" />
</modules>
</component>
</project>

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@@ -1,159 +0,0 @@
import java.util.Arrays;
import java.util.Comparator;
/**
* Клас, що описує базовий рухомий склад залізничного транспорту.
*/
class RollingStock {
private int number;
public RollingStock(int number) {
this.number = number;
}
public int getNumber() {
return number;
}
}
/**
* Клас, що описує пасажирський вагон.
*/
class PassengerCarriage extends RollingStock {
private int passengerCount;
private int comfortLevel;
public PassengerCarriage(int number, int passengerCount, int comfortLevel) {
super(number);
this.passengerCount = passengerCount;
this.comfortLevel = comfortLevel;
}
public int getPassengerCount() {
return passengerCount;
}
public int getComfortLevel() {
return comfortLevel;
}
}
/**
* Клас, що описує вагон для багажу.
*/
class BaggageCarriage extends RollingStock {
private int baggageCount;
public BaggageCarriage(int number, int baggageCount) {
super(number);
this.baggageCount = baggageCount;
}
public int getBaggageCount() {
return baggageCount;
}
}
/**
* Клас, що описує пасажирський потяг.
*/
class PassengerTrain {
private RollingStock[] rollingStock;
public PassengerTrain(RollingStock[] rollingStock) {
this.rollingStock = rollingStock;
}
public int getTotalPassengerCount() {
int totalPassengerCount = 0;
for (RollingStock stock : rollingStock) {
if (stock instanceof PassengerCarriage) {
PassengerCarriage carriage = (PassengerCarriage) stock;
totalPassengerCount += carriage.getPassengerCount();
}
}
return totalPassengerCount;
}
public int getTotalBaggageCount() {
int totalBaggageCount = 0;
for (RollingStock stock : rollingStock) {
if (stock instanceof BaggageCarriage) {
BaggageCarriage carriage = (BaggageCarriage) stock;
totalBaggageCount += carriage.getBaggageCount();
}
}
return totalBaggageCount;
}
public void sortByComfortLevel() {
Arrays.sort(rollingStock, new Comparator<RollingStock>() {
@Override
public int compare(RollingStock o1, RollingStock o2) {
if (o1 instanceof PassengerCarriage && o2 instanceof PassengerCarriage) {
PassengerCarriage carriage1 = (PassengerCarriage) o1;
PassengerCarriage carriage2 = (PassengerCarriage) o2;
return carriage1.getComfortLevel() - carriage2.getComfortLevel();
}
return 0;
}
});
}
public RollingStock findCarriageByPassengerCountRange(int minPassengerCount, int maxPassengerCount) {
for (RollingStock stock : rollingStock) {
if (stock instanceof PassengerCarriage) {
PassengerCarriage carriage = (PassengerCarriage) stock;
if (carriage.getPassengerCount() >= minPassengerCount && carriage.getPassengerCount() <= maxPassengerCount) {
return carriage;
}
}
}
return null;
}
}
/**
* Головний клас програми.
*/
public class Main {
public static void main(String[] args) {
// Створення вагонів потягу
RollingStock[] rollingStock = new RollingStock[5];
rollingStock[0] = new PassengerCarriage(1, 40, 3);
rollingStock[1] = new PassengerCarriage(2, 30, 2);
rollingStock[2] = new BaggageCarriage(3, 50);
rollingStock[3] = new PassengerCarriage(4, 20, 1);
rollingStock[4] = new PassengerCarriage(5, 35, 2);
// Створення пасажирського потягу
PassengerTrain train = new PassengerTrain(rollingStock);
// Розрахунок загальної кількості пасажирів та багажу в потязі
int totalPassengerCount = train.getTotalPassengerCount();
int totalBaggageCount = train.getTotalBaggageCount();
System.out.println("Total passenger count: " + totalPassengerCount);
System.out.println("Total baggage count: " + totalBaggageCount);
// Сортування вагонів за рівнем комфортності
train.sortByComfortLevel();
System.out.println("Sorted carriages by comfort level:");
for (RollingStock stock : rollingStock) {
if (stock instanceof PassengerCarriage) {
PassengerCarriage carriage = (PassengerCarriage) stock;
System.out.println("Carriage " + carriage.getNumber() + ", Comfort Level: " + carriage.getComfortLevel());
}
}
// Знаходження вагона з пасажирськими місцями в заданому діапазоні кількості пасажирів
int minPassengerCount = 25;
int maxPassengerCount = 40;
RollingStock foundCarriage = train.findCarriageByPassengerCountRange(minPassengerCount, maxPassengerCount);
if (foundCarriage != null) {
System.out.println("Found carriage with passenger count in range (" + minPassengerCount + "-" + maxPassengerCount + "): " + foundCarriage.getNumber());
} else {
System.out.println("No carriage found with passenger count in range (" + minPassengerCount + "-" + maxPassengerCount + ")");
}
}
}

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@@ -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>

58
src/Lab1.java Normal file
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@@ -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);
// }
}
}

102
src/Lab2.java Normal file
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@@ -0,0 +1,102 @@
public class Lab2 {
public static void main(String[] args) {
final int A = 2;
final int[][] MATRIX_B = {
{1, 202, 1, 1, 202, 3, 1, 202, 3,},
{1, 202, 1, 1, 202, 3, 1, 202, 3,},
{1, 1, 3, 1, 202, 3, 1, 202, 3,},
// {4, 5, 6,},
};
int[][] MATRIX_C = multiplication(A, MATRIX_B);
print(MATRIX_C);
System.out.println("Sum of smallest elements in every column: " + sumOfSmallestElementsInEveryColumn(MATRIX_C));
/*int[] array = {1, 2, 3};
int[] array2 = new int[3];
Object[] array3 = new String[3];
System.out.println(array3[0]); //nothing, trash from the memory, null || null
System.out.println(array2[0]); //nothing, trash from the memory, null || 0
System.out.println(array[0]); // || 1
int[][] matrix2 = new int[2][3];
matrix2[0] = new int[2];
matrix2[1] = new int[1];
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}
};
// C=a×B, a - const
// final int[][] MATRIX_C = int;
MATRIX_B[0][0] = 2;
MATRIX_B[0] = new int[]{1, 2};
System.out.println(MATRIX_B[0][0]);
MATRIX_B = new int[][]{
{1, 2},
{3}
};*/
}
private static int sumOfSmallestElementsInEveryColumn(final int[][] MATRIX_C) {
// todo check different length of rows
// todo try to change i and j
// todo check repetition of minimal elements
int sum = 0;
for (int i = 0; i < MATRIX_C[0].length; i++) {
int tmpSmallest = MATRIX_C[0][i];
for (int j = 1; j < MATRIX_C.length; j++) {
if (MATRIX_C[j][i] < tmpSmallest) {
tmpSmallest = MATRIX_C[j][i];
}
}
sum += tmpSmallest;
}
return sum;
}
private static void print(final int[][] MATRIX_C) {
for (int i = 0; i < MATRIX_C.length; i++) {
for (int j = 0; j < MATRIX_C[i].length; j++) {
// System.out.print(MATRIX_C[i][j] + "\t");//printf("%4d",
System.out.printf("%4d ", MATRIX_C[i][j]);//printf("%4d",
}
System.out.println();
}
}
private static int[][] multiplication(int A, final int[][] MATRIX_B) {
final int[][] MATRIX_C = new int[MATRIX_B.length][/*MATRIX_B[0].length*/]; // todo !!!DANGER different lengths of rows
// final int[][] MATRIX_C = MATRIX_B;
for (int i = 0; i < MATRIX_B.length; i++) {
MATRIX_C[i] = new int[MATRIX_B[i].length];
for (int j = 0; j < MATRIX_B[i].length; j++) {
MATRIX_C[i][j] = MATRIX_B[i][j] * A;
}
}
return MATRIX_C;
}
}

42
src/Main.java Normal file
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@@ -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;
}
}

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@@ -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);
}
}

View File

@@ -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);
}
}

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package encapsulationInheritancePolymorphism;
public class Main {
public static void main(String[] args) {
Student student = new Student();
//...
student.setFaculty("FPM", "MO-22");
}
}

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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;
}
}

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package encapsulationInheritancePolymorphism.inheritance;
public class ElectricEngine extends Engine {
private String batteryType;
/*private class Engine {
private int power;
}*/
}

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package encapsulationInheritancePolymorphism.inheritance;
public class Engine {
private int power;
}

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package encapsulationInheritancePolymorphism.inheritance;
public class FuelEngine extends Engine {
private String fuelType;
}

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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();
}
}

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package encapsulationInheritancePolymorphism.polymorphism;
public class ElectricEngine extends Engine {
private String batteryType;
@Override
public int getPower() {
return 20;
}
/*private class Engine {
private int power;
}*/
}

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package encapsulationInheritancePolymorphism.polymorphism;
public class Engine {
private int power;
public int getPower() {
return power;
}
}

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package encapsulationInheritancePolymorphism.polymorphism;
public class FuelEngine extends Engine {
private String fuelType;
@Override
public int getPower() {
return 50;
}
}

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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);
}
}

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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;
}*/
}

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package encapsulationInheritancePolymorphism.polymorphism.enhanced;
public class Engine {
private int power = 100;
public int getPower() {
return power;
}
}

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package encapsulationInheritancePolymorphism.polymorphism.enhanced;
public class FuelEngine extends Engine {
private String fuelType;
/*public int getPower() {
return 50;
}*/
}

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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());
}*/
}
}

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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
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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
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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);
}
}