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OOP_IO-2x_2023-mirror
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Added 5 lab

This commit is contained in:
lesflq 2023-05-31 20:18:40 +03:00
parent 1583e33ab3
commit 20be64e175
35 changed files with 232 additions and 896 deletions
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2
.idea/misc.xml
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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_18" default="true" project-jdk-name="openjdk-18" project-jdk-type="JavaSDK">
<component name="ProjectRootManager" version="2" languageLevel="JDK_X" default="true" project-jdk-name="openjdk-20" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

58
src/Lab1.java
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@ -1,58 +0,0 @@
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) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> i = 1, 2) <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <= 3, 3) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 䳿 <EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
System.out.println(i); // 4) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD> <EFBFBD><EFBFBD> 1, 5) <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD> <EFBFBD><EFBFBD><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);
// }
}
}

139
src/Lab2.java
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@ -1,139 +0,0 @@
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, 4},
{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));
try {
System.out.println("Sum of smallest elements in every column: " + sumOfSmallestElementsInEveryColumnRenew(MATRIX_C));
System.out.println("???...");
} catch (Exception e) {
System.err.println(e.getMessage());
}
System.out.println("I'm still working...");
/*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 int sumOfSmallestElementsInEveryColumnRenew(final int[][] MATRIX_C) throws Exception {
// todo check different length of rows
for (int i = 1; i < MATRIX_C.length; i++) {
if (MATRIX_C[i].length != MATRIX_C[0].length) {
throw new /*Runtime*/Exception("There are different lengths of matrix rows.");
// System.err.println("There are different lengths of matrix rows.");
// System.exit(0);
}
}
int sum = 0;
for (int j = 0; j < MATRIX_C[0].length; j++) {
int tmpSmallest = MATRIX_C[0][j];
boolean valueRepeats = false;
for (int i = 1; i < MATRIX_C.length; i++) {
if (MATRIX_C[i][j] < tmpSmallest) {
tmpSmallest = MATRIX_C[i][j];
valueRepeats = false;
} else if (MATRIX_C[i][j] == tmpSmallest) {
valueRepeats = true;
}
}
if (!valueRepeats) {
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;
}
}

231
src/Lab5.java Normal file
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import java.util.ArrayList;
import java.util.List;
class Letter {
private char character;
public Letter(char character) {
this.character = character;
}
public char getCharacter() {
return character;
}
@Override
public String toString() {
return String.valueOf(character);
}
}
class Word {
private List<Letter> letters;
public Word(List<Letter> letters) {
this.letters = letters;
}
public List<Letter> getLetters() {
return letters;
}
@Override
public String toString() {
StringBuilder wordBuilder = new StringBuilder();
for (Letter letter : letters) {
wordBuilder.append(letter.getCharacter());
}
return wordBuilder.toString();
}
}
class Sentence {
private List<Object> components;
public Sentence(List<Object> components) {
this.components = components;
}
public List<Object> getComponents() {
return components;
}
@Override
public String toString() {
StringBuilder sentenceBuilder = new StringBuilder();
for (Object component : components) {
if (component instanceof Word) {
List<Letter> letters = ((Word) component).getLetters();
for (Letter letter : letters) {
sentenceBuilder.append(letter.getCharacter());
}
} else if (component instanceof PunctuationMark) {
sentenceBuilder.append(((PunctuationMark) component).getMark());
}
sentenceBuilder.append(" ");
}
return sentenceBuilder.toString().trim();
}
}
class PunctuationMark {
private char mark;
public PunctuationMark(char mark) {
this.mark = mark;
}
public char getMark() {
return mark;
}
@Override
public String toString() {
return String.valueOf(mark);
}
}
class Text {
private List<Sentence> sentences;
public Text(List<Sentence> sentences) {
this.sentences = sentences;
}
public List<Sentence> getSentences() {
return sentences;
}
@Override
public String toString() {
StringBuilder textBuilder = new StringBuilder();
for (Sentence sentence : sentences) {
textBuilder.append(sentence.toString()).append(". ");
}
return textBuilder.toString().trim();
}
}
public class Lab5 {
public static void main(String[] args) {
System.out.println("C17 = " + 2425%17);
StringBuffer sentence = new StringBuffer("об'єктно-орієнтована мова програмування , випущена 1995 року компанією" +
" Сан Майкросістемс , як основний компонент платформи Джава." +
" З 2009 року мовою займається компанія Оракл , яка того року придбала Сан Майкросістемс. В офіційній" +
" реалізації Джава-програми компілюються у байт-код , який при виконанні інтерпретується віртуальною" +
" машиною для конкретної платформи");
// Заміна послідовності табуляцій та пробілів одним пробілом
String cleanedText = replaceTabsAndSpaces(sentence.toString());
// Розбиття тексту на речення
String[] sentenceArray = cleanedText.split("\\.");
List<Sentence> sentences = new ArrayList<>();
List<Character> punctuationMarks = new ArrayList<>();
for (String s : sentenceArray) {
// Розбиття речення на слова та розділові знаки
String[] components = s.trim().split("\\s+");
List<Object> sentenceComponents = new ArrayList<>();
for (String component : components) {
if (isPunctuationMark(component)) {
// Додавання розділових знаків
char mark = component.charAt(component.length() - 1);
punctuationMarks.add(mark);
sentenceComponents.add(new PunctuationMark(mark));
} else {
// Створення слова
List<Letter> letters = new ArrayList<>();
for (char c : component.toCharArray()) {
letters.add(new Letter(c));
}
sentenceComponents.add(new Word(letters));
}
}
sentences.add(new Sentence(sentenceComponents));
}
// Створення тексту
Text text = new Text(sentences);
// Виведення букв, слів та речень
List<Sentence> allSentences = text.getSentences();
for (Sentence s : allSentences) {
List<Object> components = s.getComponents();
for (Object component : components) {
if (component instanceof Word) {
System.out.println("Слово: " + component);
List<Letter> letters = ((Word) component).getLetters();
for (Letter letter : letters) {
System.out.println("Літера: " + letter.getCharacter());
}
} else if (component instanceof PunctuationMark) {
System.out.println("Розділовий знак: " + ((PunctuationMark) component).getMark());
}
}
System.out.println("Речення: " + s.toString());
System.out.println();
}
// Виведення розділових знаків
System.out.println("Розділові знаки:");
for (Character mark : punctuationMarks) {
System.out.println(mark);
}
// Виведення масиву речень з пробілами
System.out.println("Масив речень:");
for (Sentence s : allSentences) {
System.out.println(s.toString());
}
// Видалення слів заданої довжини, починаючи з приголосної літери
removeWords(allSentences);
// Виведення оновленого тексту
System.out.println("Оновлений текст:");
System.out.println(text.toString());
}
// Функція для заміни табуляцій та пробілів одним пробілом
private static String replaceTabsAndSpaces(String text) {
return text.replaceAll("\\s+", " ");
}
// Функція для перевірки, чи є рядок розділовим знаком
private static boolean isPunctuationMark(String text) {
return text.matches(".*[,.]$");
}
// Функція для видалення слів заданої довжини, починаючи з приголосної літери
private static void removeWords(List<Sentence> sentences) {
String consonants = "бвгґджзклмнпрстфхцчшщ";
for (Sentence sentence : sentences) {
List<Object> components = sentence.getComponents();
List<Object> componentsToRemove = new ArrayList<>();
for (Object component : components) {
if (component instanceof Word) {
Word word = (Word) component;
List<Letter> letters = word.getLetters();
int wordLength = letters.size();
char firstLetter = letters.get(0).getCharacter();
if ((wordLength > 5) && (wordLength < 9) && consonants.contains(String.valueOf(firstLetter))) {
componentsToRemove.add(component);
}
}
}
components.removeAll(componentsToRemove);
}
}
}

42
src/Main.java
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@ -1,42 +0,0 @@
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
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@ -1,20 +0,0 @@
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);
}
}

10
src/encapsulationInheritancePolymorphism/EncapsulationInheritancePolymorphism.java
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@ -1,10 +0,0 @@
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
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@ -1,14 +0,0 @@
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
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@ -1,18 +0,0 @@
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;
}
}

9
src/encapsulationInheritancePolymorphism/inheritance/ElectricEngine.java
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@ -1,9 +0,0 @@
package encapsulationInheritancePolymorphism.inheritance;
public class ElectricEngine extends Engine {
private String batteryType;
/*private class Engine {
private int power;
}*/
}

5
src/encapsulationInheritancePolymorphism/inheritance/Engine.java
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@ -1,5 +0,0 @@
package encapsulationInheritancePolymorphism.inheritance;
public class Engine {
private int power;
}

5
src/encapsulationInheritancePolymorphism/inheritance/FuelEngine.java
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@ -1,5 +0,0 @@
package encapsulationInheritancePolymorphism.inheritance;
public class FuelEngine extends Engine {
private String fuelType;
}

8
src/encapsulationInheritancePolymorphism/inheritance/Main.java
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@ -1,8 +0,0 @@
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();
}
}

14
src/encapsulationInheritancePolymorphism/polymorphism/ElectricEngine.java
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@ -1,14 +0,0 @@
package encapsulationInheritancePolymorphism.polymorphism;
public class ElectricEngine extends Engine {
private String batteryType;
@Override
public int getPower() {
return 20;
}
/*private class Engine {
private int power;
}*/
}

9
src/encapsulationInheritancePolymorphism/polymorphism/Engine.java
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@ -1,9 +0,0 @@
package encapsulationInheritancePolymorphism.polymorphism;
public class Engine {
private int power;
public int getPower() {
return power;
}
}

10
src/encapsulationInheritancePolymorphism/polymorphism/FuelEngine.java
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@ -1,10 +0,0 @@
package encapsulationInheritancePolymorphism.polymorphism;
public class FuelEngine extends Engine {
private String fuelType;
@Override
public int getPower() {
return 50;
}
}

38
src/encapsulationInheritancePolymorphism/polymorphism/Main.java
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@ -1,38 +0,0 @@
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);
}
}

19
src/encapsulationInheritancePolymorphism/polymorphism/enhanced/ElectricEngine.java
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@ -1,19 +0,0 @@
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;
}*/
}

9
src/encapsulationInheritancePolymorphism/polymorphism/enhanced/Engine.java
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@ -1,9 +0,0 @@
package encapsulationInheritancePolymorphism.polymorphism.enhanced;
public class Engine {
private int power = 100;
public int getPower() {
return power;
}
}

10
src/encapsulationInheritancePolymorphism/polymorphism/enhanced/FuelEngine.java
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@ -1,10 +0,0 @@
package encapsulationInheritancePolymorphism.polymorphism.enhanced;
public class FuelEngine extends Engine {
private String fuelType;
/*public int getPower() {
return 50;
}*/
}

28
src/encapsulationInheritancePolymorphism/polymorphism/enhanced/Main.java
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@ -1,28 +0,0 @@
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());
}*/
}
}

17
src/encapsulationInheritancePolymorphism/polymorphism/overload/MyClassForOverloadExample.java
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@ -1,17 +0,0 @@
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);
}
}

75
src/lab3/Lab3.java
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@ -1,75 +0,0 @@
package lab3;
public class Lab3 {
private static final int REPETITION_NUMBER = 10;
public static void main(String[] args) {
StringBuilder result = new StringBuilder();
for (int i = 0; i < REPETITION_NUMBER; i++) {
// result += Integer.toString(i);
// result += String.valueOf(i);
result.append(i);
}
/*float f = 1.1f;
double d = 2.2;
// f = (float) (f + d);
f += d;*/
String s = "ASD";
StringBuilder stringBuilder = new StringBuilder("ASD");
StringBuffer stringBuffer = new StringBuffer("ASD");
stringBuilder.append("A");
System.out.println(s.length());
System.out.println(stringBuilder.length());
System.out.println(stringBuffer.length());
System.out.println(s.endsWith("D"));
// System.out.println(stringBuilder.substring(stringBuilder.length() - 1).equals("A"));
System.out.println("A".equals(stringBuilder.substring(stringBuilder.length() - 1)));
System.out.println("A".equals(stringBuffer.substring(stringBuffer.length() - 1)));
String sNull = null;
System.out.println("A".equals(sNull));
System.out.println(sNull.equals("A"));
System.out.println(s.substring(2));
System.out.println(s.contains("AS"));
System.out.println(s.indexOf('a'));
// System.out.println(s.charAt(-1));
System.out.println("s.equalsIgnoreCase(\"AsD\") = " + s.equalsIgnoreCase("AsD"));
String s2 = s;
System.out.println("s2 = " + s2);
System.out.println(s == s2); // true?
System.out.println(s.equals(s2)); // true?
s += "B";
System.out.println(s);
System.out.println("s2 = " + s2);
System.out.println(s == s2); // false?
System.out.println(s.equals(s2)); // false?
String s3 = new String("ASD");
System.out.println(s3 == s2); // true? (false)
System.out.println(s3.equals(s2)); // false? (true)
// String Pool
String s4 = "ASD";
// String s5 = new String("ASD");
String s5 = "AS";
s5 += "D";
System.out.println(s4 == s5); // true? (SP)
System.out.println(s4.equals(s5)); // (true)
System.out.println("Done!");
}
}

66
src/lab3/Variant0.java
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@ -1,66 +0,0 @@
package lab3;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
/**
* Знайти найбільшу кількість речень заданого тексту, в яких є однакові слова.
*/
public class Variant0 {
public static void main(String[] args) {
System.out.println("\\");
String textString = "Aa, a b. Bb a? B a! B a. Ccc.";
// final String[] sentencesStrings = textString.split("(?<=(\\.|!|\\?)) ");
// final String[] sentencesStrings = textString.split("(?<=[.!?]) ");
final String[] sentencesStrings = textString.split("[.!?] ?");
for (String sentencesString : sentencesStrings) {
System.out.println("[" + sentencesString + "]");
}
System.out.println("++++++++++++");
final String[][] wordsStringsBySentences = new String[sentencesStrings.length][];
for (int i = 0; i < sentencesStrings.length; i++) {
wordsStringsBySentences[i] = sentencesStrings[i].split(",? ");
}
for (String[] wordsStrings : wordsStringsBySentences) {
for (String wordsString : wordsStrings) {
System.out.print("[" + wordsString + "] - ");
}
System.out.println();
}
Set<String> originalWordsStrings = new HashSet();
for (String[] wordsStrings : wordsStringsBySentences) {
for (String wordsString : wordsStrings) {
originalWordsStrings.add(wordsString.toLowerCase());
}
}
final String[] originalWordsArray = originalWordsStrings.toArray(new String[0]);
System.out.println("++++++++++++");
for (Object originalWordsString : originalWordsStrings) {
System.out.println(originalWordsString);
}
int[] entersQuantitiesOriginalWordsInSentences = new int[originalWordsArray.length];
for (int i = 0; i < originalWordsArray.length; i++) {
String originalWord = originalWordsArray[i];
for (String[] words : wordsStringsBySentences) {
for (String word : words) {
if (originalWord.equalsIgnoreCase(word)) {
entersQuantitiesOriginalWordsInSentences[i]++;
break;
}
}
}
}
// todo show greatest value from entersQuantitiesOriginalWordsInSentences
// System.out.println(Arrays.toString(sentencesStrings));
System.out.println("++++++++++++");
}
}

93
src/lab4/Furniture.java
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@ -1,93 +0,0 @@
package lab4;
///**
// * My class Furniture.
// */
//todo uncomment /*<Furniture>*/
public /*abstract*/ class Furniture/*<T>*/ implements Comparable<Furniture> {
/**
*
*/
private String material;
private int length;
private int height;
private int width;
private int price;
// private T additional;
// public void setAdditional(T additional) {
// this.additional = additional;
// }
/**
* @param material
* @param length
* @param height
* @param width
* @param price
*/
public Furniture(String material, int length, int height, int width, int price) {
// this.material = material;
setMaterial(material);
this.length = length;
this.height = height;
this.width = width;
this.price = price;
}
public void setMaterial(String material) {
this.material = material;
}
public String getMaterial() {
return material;
}
public int getLength() {
return length;
}
public int getHeight() {
return height;
}
public int getWidth() {
return width;
}
public int getPrice() {
return price;
}
/*public Furniture() {
}*/
@Override
public String toString() {
return "Furniture{" +
"material='" + material + '\'' +
", length=" + length +
", height=" + height +
", width=" + width +
", price=" + price +
'}';
}
// @Override
// public int compareTo(Object o) {
// return /*this.*/price - ((Furniture) o).price;
//// return /*this.*/material.compareTo(((Furniture) o).material);
// }
@Override
public int compareTo(Furniture o) {
final int priceDifference = price - o.price;
return priceDifference != 0
? priceDifference
// : -material.compareTo(o.material);
: o.material.compareTo(material);
}
}

84
src/lab4/Main.java
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@ -1,84 +0,0 @@
package lab4;
import java.util.Arrays;
import java.util.Comparator;
public class Main {
public static void main(String[] args) {
System.out.println(Integer.MIN_VALUE - 1);
//todo equals+hashcode
// todo JavaDoc
final Furniture/*<Furniture>*/ furniture1 = new Furniture("A", 1, 1, 1, 1);
final Furniture/*<String>*/ furniture2 = new Furniture("F", 1, 1, 1, 4);
System.out.println(furniture1.compareTo(furniture2));
// System.out.println(furniture1.compareTo("furniture2"));
Furniture[] furnitureArray = {
furniture1,
furniture2,
new Furniture("B", 1, 2, 1, 1),
new Furniture("C", 1, 1, 3, 1),
};
for (Furniture furniture : furnitureArray) {
// System.out.println(furniture.getMaterial() + " " + furniture.getPrice());
System.out.println(furniture);
}
System.out.println("+++++++++++++");
// furniture1.setAdditional(new Furniture("Y", 1, 1, 1, 0));
// furniture2.setAdditional("new Furniture(\"Y\", 1, 1, 1, 0)");
// furnitureArray[0].setMaterial("E");
Arrays.sort(furnitureArray, (o1, o2) -> o1.getMaterial().compareTo(o2.getMaterial()));
for (Furniture furniture : furnitureArray) {
System.out.println(furniture);
}
System.out.println("+++++++++++++");
// todo check
Arrays.sort(furnitureArray, (o1, o2) -> Integer.compare(o2.getPrice(), o1.getPrice()));
for (Furniture furniture : furnitureArray) {
System.out.println(furniture);
}
System.out.println("+++++++++++++");
/*Arrays.sort(furnitureArray);
for (Furniture furniture : furnitureArray) {
System.out.println(furniture);
}
System.out.println("+++++++++++++");*/
/*Arrays.sort(furnitureArray, new PriceFurnitureComparator());
for (Furniture furniture : furnitureArray) {
System.out.println(furniture);
}
System.out.println("+++++++++++++");*/
/*Arrays.sort(furnitureArray, new Comparator<Furniture>() {
@Override
public int compare(Furniture o1, Furniture o2) {
return o1.getMaterial().compareTo(o2.getMaterial());
}
});*/
// Arrays.sort(furnitureArray, (o1, o2) -> o1.getMaterial().compareTo(o2.getMaterial()));
// Arrays.sort(furnitureArray, Comparator.comparing(Furniture::getMaterial));
// Arrays.sort(furnitureArray, Comparator.comparing(Furniture::getMaterial).reversed());
// Arrays.sort(furnitureArray, Comparator.comparing(Furniture::getPrice)
// .thenComparing(Furniture::getMaterial).reversed());
Arrays.sort(furnitureArray, Comparator.comparing(Furniture::getPrice)
.thenComparing(Comparator.comparing(Furniture::getMaterial).reversed()));
for (Furniture furniture : furnitureArray) {
System.out.println(furniture);
}
System.out.println("+++++++++++++");
}
}

11
src/lab4/MaterialFurnitureComparator.java
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@ -1,11 +0,0 @@
package lab4;
import java.util.Comparator;
public class MaterialFurnitureComparator implements Comparator<Furniture> {
@Override
public int compare(Furniture o1, Furniture o2) {
return o1.getMaterial().compareTo(o2.getMaterial());
}
}

11
src/lab4/PriceFurnitureComparator.java
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@ -1,11 +0,0 @@
package lab4;
import java.util.Comparator;
public class PriceFurnitureComparator implements Comparator<Furniture> {
@Override
public int compare(Furniture o1, Furniture o2) {
return o1.getPrice() - o2.getPrice();
}
}

13
src/test/A.java
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@ -1,13 +0,0 @@
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
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@ -1,15 +0,0 @@
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);
}
}

13
src/test/Test.java
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@ -1,13 +0,0 @@
package test;
public class Test {
public static void main(String[] args) {
}
static int m(){
System.exit(0);
// return 1;
System.out.println(123);
return 1;
}
}

7
src/test/one/A.java
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@ -1,7 +0,0 @@
package test.one;
public class A implements MyMethodInterface {
public void myMethod() {
}
}

7
src/test/one/B.java
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@ -1,7 +0,0 @@
package test.one;
public class B implements MyMethodInterface {
public void myMethod() {
}
}

13
src/test/one/Main.java
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@ -1,13 +0,0 @@
package test.one;
public class Main {
public static void main(String[] args) {
Object[] objects = {
new A(),
new B(),
};
for (Object object : objects) {
((MyMethodInterface)object).myMethod();
}
}
}

5
src/test/one/MyMethodInterface.java
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@ -1,5 +0,0 @@
package test.one;
public interface MyMethodInterface {
void myMethod();
}