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16 Commits

Author SHA1 Message Date
Oleh 0e7941c21e Added lab6 2023-06-06 16:22:51 +03:00
Oleh 41ea5f841a Added lab5 2023-06-06 14:48:40 +03:00
Oleh e38652d12f Added lab4 2023-05-16 15:51:24 +02:00
Oleh 6d7a81dee2 Added lab3 2023-05-15 15:19:00 +02:00
Oleh ab62df0a7f add lab2 2023-03-23 19:51:48 +01:00
Oleh 4417dfe95a add lab1 2023-03-20 17:36:00 +01:00
Oleksii Aleshchenko 14c58d0cc4 add lab2 2023-03-16 15:58:44 +02:00
Oleksii Aleshchenko afc13cf9f8 add char example for lab1 2023-03-16 15:21:51 +02:00
Oleksii Aleshchenko e910ee6e4d add final way of check division by zero for lab1 2023-03-16 15:07:48 +02:00
Oleksii Aleshchenko 6ab6cc17db add break with label (commented in line 34) and return for lab1 2023-03-16 15:00:12 +02:00
Oleksii Aleshchenko 25173d66d1 add flag "wasDivisionByZero" for lab1 2023-03-16 14:47:04 +02:00
Oleksii Aleshchenko 41ad598b79 add lab1 2023-03-09 16:01:01 +02:00
Oleksii Aleshchenko 13e1a61ad9 update Main with example for difference & and && 2023-03-02 16:07:34 +02:00
Oleksii Aleshchenko f692ae7588 update polymorphism example 2023-03-02 15:48:38 +02:00
Oleksii Aleshchenko 429bcc7b3d add polymorphism example 2023-03-02 15:26:42 +02:00
Oleksii Aleshchenko 4b159fa22b update inheritance example 2023-03-02 14:41:44 +02:00
20 changed files with 532 additions and 2 deletions
+1 -1
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@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<project version="4"> <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_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" /> <output url="file://$PROJECT_DIR$/out" />
</component> </component>
</project> </project>
+27
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@@ -3,6 +3,33 @@ public class Main {
System.out.println(args[2]); System.out.println(args[2]);
System.out.println("Hello world!"); System.out.println("Hello world!");
// System.out.println(1); // 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() { void myFunction() {
@@ -2,4 +2,8 @@ package encapsulationInheritancePolymorphism.inheritance;
public class ElectricEngine extends Engine { public class ElectricEngine extends Engine {
private String batteryType; private String batteryType;
/*private class Engine {
private int power;
}*/
} }
@@ -0,0 +1,5 @@
package encapsulationInheritancePolymorphism.inheritance;
public class FuelEngine extends Engine {
private String fuelType;
}
@@ -2,6 +2,7 @@ package encapsulationInheritancePolymorphism.inheritance;
public class Main { public class Main {
public static void main(String[] args) { public static void main(String[] args) {
ElectricEngine electricEngine = new ElectricEngine(); 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);
}
}
+45
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@@ -0,0 +1,45 @@
import java.util.Scanner;
public class lab1 {
public static void main(String[] args){
Scanner scanner = new Scanner(System.in);
// 2131 % 7 = 3; C7 = long
long n, m, a, b;
float result, sum;
while(true) {
try {
System.out.println("Введіть n типу long:");
n = scanner.nextLong();
System.out.println("Введіть m типу long:");
m = scanner.nextLong();
System.out.println("Введіть a типу long:");
a = scanner.nextLong();
System.out.println("Введіть b типу long:");
b = scanner.nextLong();
break;
}catch(Exception e){
scanner.nextLine();
System.out.println("Введене неправильне число");
}
}
// 2131 % 5 = 1; O2 = /
// 2131 % 2 = 1; O1 = -
// 2131 % 3 = 1; C = 1
result = 0;
byte C = 1;
for(long i = a; i <= n; i++){
sum = 0;
for(long j = b; j <= m; j++){
if (i - C == 0 || j == 0){
System.out.println("Помилка ділення на 0");
System.exit(0);
}
sum += (float) (i/j)/(i-C);
}
result += sum;
}
System.out.println(result);
}
}
+51
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@@ -0,0 +1,51 @@
public class lab2 {
public static void main(String[] args){
// 2131 % 7 = 3; C7 = int
int[][] matrix = {
{1,2,3,4,5},
{1,3,5,7,9},
{10,1,20,2,5}
};
int rows = matrix.length;
int column = matrix[0].length;
System.out.println("Матриця:");
for(int i = 0; i < rows; i++){
for (int j = 0; j < column; j++){
System.out.print(matrix[i][j]+" ");
}
System.out.println();
}
System.out.println();
// 2131 % 5 = 1; C5 = транспортування;
int[][] transportMatrix = new int[column][rows];
for(int i = 0; i < rows; i++){
for(int j = 0; j < column; j++){
transportMatrix[j][i] = matrix[i][j];
}
}
System.out.println("Транспонована матриця:");
for (int i = 0; i < column; i++){
for (int j = 0; j < rows; j++){
System.out.print(transportMatrix[i][j]+" ");
}
System.out.println();
}
System.out.println();
// 2131 % 11 = 8; C11 = Знайти середнє значення елементів кожного рядка матриці;
int sum;
for(int i = 0; i < rows; i++){
sum = 0;
for(int j = 0; j < column; j++){
sum += matrix[i][j];
}
System.out.println("Середнє арифметичне " + (i+1) + " строки = " + (float)sum/column);
}
}
}
+23
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@@ -0,0 +1,23 @@
//C17 = 2131 % 17 = 6; Відсортувати слова заданого тексту за зростанням кількості голосних літер.
import create from 'prompt-sync';
const prompt = create();
class Sentence {
constructor() {
this.sentence = prompt("Input sentence: ");
}
sort() {
const words = this.sentence.split(/[\s.?!,;]/).filter((word) => word);
const vowels = /[AaEeiOoUuYy]/g
const sortedWords = words.sort((first, second) => {
const vowelsOfFirstWord = first.match(vowels)? first.match(vowels): [];
const vowelsOfSecondWord = second.match(vowels)? second.match(vowels): [];
return vowelsOfFirstWord.length-vowelsOfSecondWord.length;
});
return sortedWords.join(' ');
}
}
const sentence = new Sentence;
console.log(sentence.sort())
+46
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@@ -0,0 +1,46 @@
//C11 = 2131%11 = 8; Визначити клас меблі, який складається як мінімум з 5-и полів.
//Створимо клас меблів
class Furniture{
constructor({model, width, height, length, price}) { //об'єкт класа буде створений на основі об'єкта для зручості, тому використовуємо деструктороване присвоєння, щоб не брати зайве.
this.model = model;
this.width = width;
this.height = height;
this.length = length;
this.price = price;
}
}
//Створимо об'єкти майбутніх об'єктів класу меблі
const chair = {
model: 'chair',
width: 1,
length: 1,
height: 1,
price: 500,
};
const table = {
model: 'table',
width: 3,
length: 2,
height: 1.5,
price: 1000,
};
const wardrobe = {
model: 'wardrobe',
width: 5,
length: 1,
height: 3,
price: 750,
};
//Створимо масив що складається з об'єктів класу
const furniture = [new Furniture(wardrobe), new Furniture(chair), new Furniture(table)];
//Відсрортуємо масив за алфавітним порядком;
console.log(furniture.sort((first, second) => first.model > second.model ? 1 : first.model < second.model ? -1 : 0));
//Відсортуємл масив за ціною за спаданням
console.log(furniture.sort((first, second) => second.price - first.price));
+103
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@@ -0,0 +1,103 @@
class Text {
constructor(text) {
this.text = [];
const sentences = text.split(/[.?!;]/).filter((sentence) => sentence);
for (const sentence of sentences) {
this.text.push(new Sentence(sentence))
}
}
getText() {
let text = '';
for (const sentence of this.text) {
text += sentence.getSentence() + '. ';
}
return text;
}
getSortedText() {
let words = [];
const vowels = /[AaEeiOoUuYy]/g;
for (const sentence of this.text) {
words = words.concat(sentence.getWords());
}
const sortedWords = words.sort((first, second) => {
const vowelsOfFirstWord = first.match(vowels)? first.match(vowels): [];
const vowelsOfSecondWord = second.match(vowels)? second.match(vowels): [];
return vowelsOfFirstWord.length-vowelsOfSecondWord.length;
});
return sortedWords.join(' ');
}
}
class Sentence {
constructor(sentence) {
this.sentence = [];
const words = sentence.split(/[\s,:]/).filter((word) => word);
for (const word of words) {
this.sentence.push(new Word(word));
}
}
getSentence() {
let sentence = '';
for (const word of this.sentence) {
sentence += word.getWord();
if ( this.sentence[this.sentence.length-1] !== word) sentence += ' ';
}
return sentence;
}
getWords() {
let words = [];
for (const word of this.sentence) {
words.push(word.getWord());
}
return words;
}
}
class Word {
constructor(word) {
this.word = [];
for (const symbol of word) {
if (/[A-Za-z]/.test(symbol)){
this.word.push(new Letter(symbol));
} else if (/[0-9]/.test(symbol)) {
this.word.push(new Number(symbol));
}
}
}
getWord() {
let word = '';
for (const symbol of this.word) {
word += symbol.getSymbol();
}
return word
}
}
class Letter {
constructor(letter) {
this.letter = letter;
}
getSymbol() {
return this.letter;
}
}
class Number {
constructor(number) {
this.number = number;
}
getSymbol() {
return this.number;
}
}
const text = new Text('In late September or October, Martina elevated Constans to co-emperor, but also raised Heraclonas\'s brother Tiberius to co-emperor alongside them. Despite these overtures, Valentinus entered Constantinople shortly thereafter, deposed Heraclonas and Martina, and then elevated Constans to sole emperor. Heraclonas, Martina, Tiberius, and Martinus are said by John of Nikiu to have been escorted forth with insolence. Valentinus had Martinus nose cut off, emasculated him, and then banished his family to Rhodes, where they stayed until their deaths. According to some sources, the stress of the surgery killed Martinus immediately.');
console.log(text.getText());
console.log('\n' + text.getSortedText());
+71
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@@ -0,0 +1,71 @@
console.log(2131 % 13)
class Room {
constructor(price, ...toys) {
this.toys = toys;
this.price = price;
if (this.getCurrentPrice() > price) throw new SyntaxError('We haven`t money for this');
}
addToy(toy) {
if (this.getCurrentPrice() + toy.getPrice() <= this.price) this.toys.push(toy);
else throw new SyntaxError('We haven`t money for this');
}
getCurrentPrice() {
let sum = 0;
for (const toy of this.toys) {
sum += toy.getPrice();
}
return sum;
}
getSortedToysByPrice() {
const sortedToys = this.toys.copyWithin();
return sortedToys.sort((firstToy, secondToy) => {
return firstToy.getPrice() - secondToy.getPrice();
});
}
getToyByPrice(lowerPrice, upperPrice) {
return this.toys.find((toy) => lowerPrice <= toy.getPrice() && toy.getPrice() <= upperPrice);
}
}
class Toy {
constructor(type, price, group) {
this.type = type;
this.price = price;
this.group = group;
}
getPrice() {
return this.price;
}
}
class Car extends Toy {
constructor(price, group) {
super('car', price, group);
}
}
class Ball extends Toy {
constructor(price, group) {
super('ball', price, group);
}
}
class Doll extends Toy {
constructor(price, group) {
super('doll', price, group);
}
}
const doll = new Doll(200, 'middle');
const ball = new Ball(150, 'young');
const car = new Car(300, 'old');
const room = new Room(1000, doll, ball, car);
console.log(room.getSortedToysByPrice())
console.log(room.getToyByPrice(201, 301));