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PastorPastor
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Merge pull request #648 from or0kalame/feature/pract26-32
Практические №26-32
2 parents d1f1704 + 8f62f91 commit 1aee80c

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‎PROCS.TXT

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‎students/23K0112/23K0112-p21/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<artifactId>23K0112</artifactId>
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<groupId>ru.mirea.practice</groupId>
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<version>2024.1</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>23K0112-p21</artifactId>
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<description>Стирание типов в Джава</description>
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</project>

‎students/23K0112/23K0112-p21/src/main/java/ru/mirea/practice/s29k0112/ArrayToListConverter.java

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package ru.mirea.practice.s29k0112;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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public abstract class ArrayToListConverter {
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public static <E> List<E> convertArrayToList(E[] array) {
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return new ArrayList<>(Arrays.asList(array));
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}
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}

‎students/23K0112/23K0112-p21/src/main/java/ru/mirea/practice/s29k0112/IndexGetter.java

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package ru.mirea.practice.s29k0112;
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public abstract class IndexGetter<E> {
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public static <E> E getElement(E[] array, int index) {
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if (index < 0 || index >= array.length) {
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throw new IndexOutOfBoundsException("Индекс выходит за границу");
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}
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return array[index];
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}
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}

‎students/23K0112/23K0112-p21/src/main/java/ru/mirea/practice/s29k0112/TestMethods.java

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package ru.mirea.practice.s29k0112;
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import java.util.List;
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public final class TestMethods {
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private TestMethods() {
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}
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public static void main(String[] args) {
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String[] stringArray = {"один", "два", "три"};
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List<String> stringList = ArrayToListConverter.convertArrayToList(stringArray);
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System.out.println(stringList);
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System.out.println(IndexGetter.getElement(stringArray, 0));
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System.out.println(IndexGetter.getElement(stringArray, 1));
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}
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}

‎students/23K0112/23K0112-p22/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<artifactId>23K0112</artifactId>
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<groupId>ru.mirea.practice</groupId>
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<version>2024.1</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>23K0112-p22</artifactId>
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<description>Абстрактные типы данных. Стек</description>
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</project>

‎students/23K0112/23K0112-p22/src/main/java/ru/mirea/practice/s29k0112/RpnCalculator.java

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package ru.mirea.practice.s29k0112;
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public class RpnCalculator {
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private Stack stack;
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public RpnCalculator(int size) {
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stack = new Stack(size);
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}
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public double calculate(String expression) throws Exception {
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String[] tokens = expression.split(" ");
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for (String token : tokens) {
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switch (token) {
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case "+":
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stack.push(stack.pop() + stack.pop());
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break;
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case "-":
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double subtrahend = stack.pop();
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stack.push(stack.pop() - subtrahend);
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break;
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case "*":
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stack.push(stack.pop() * stack.pop());
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break;
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case "/":
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double divisor = stack.pop();
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if (divisor == 0) {
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throw new ArithmeticException("Division by zero");
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}
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stack.push(stack.pop() / divisor);
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break;
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default:
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stack.push(Double.parseDouble(token));
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}
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}
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return stack.pop();
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}
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}

‎students/23K0112/23K0112-p22/src/main/java/ru/mirea/practice/s29k0112/Stack.java

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package ru.mirea.practice.s29k0112;
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class Stack {
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private double[] arr;
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private int top;
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private int capacity;
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Stack(int size) {
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arr = new double[size];
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capacity = size;
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top = -1;
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}
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public void push(double x) {
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if (isFull()) {
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System.out.println("Stack OverFlow");
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System.exit(1);
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}
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arr[++top] = x;
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}
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public double pop() {
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if (isEmpty()) {
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System.out.println("STACK EMPTY");
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System.exit(1);
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}
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return arr[top--];
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}
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public int getSize() {
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return top + 1;
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}
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public Boolean isEmpty() {
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return top == -1;
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}
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public Boolean isFull() {
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return top == capacity - 1;
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}
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}

‎students/23K0112/23K0112-p22/src/main/java/ru/mirea/practice/s29k0112/TestCalculator.java

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package ru.mirea.practice.s29k0112;
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public final class TestCalculator {
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private TestCalculator() {
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}
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public static void main(String[] args) throws Exception {
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RpnCalculator calculator = new RpnCalculator(10);
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System.out.println("1 2 + = " + calculator.calculate("1 2 +"));
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System.out.println("2 3 * 4 5 * + = " + calculator.calculate("2 3 * 4 5 * +"));
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System.out.println("2 3 4 5 6 * + - / = " + calculator.calculate("2 3 4 5 6 * + - /"));
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try {
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System.out.println("1 0 / = " + calculator.calculate("1 0 /"));
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} catch (ArithmeticException e) {
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System.out.println(e.getMessage());
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}
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}
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}

‎students/23K0112/23K0112-p23/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<artifactId>23K0112</artifactId>
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<groupId>ru.mirea.practice</groupId>
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<version>2024.1</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>23K0112-p23</artifactId>
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<description>Абстрактные типы данных. Очередь</description>
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</project>

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