rel

.gitignore

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+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

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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

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_23" default="true" project-jdk-name="homebrew-23" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/lab1.iml" filepath="$PROJECT_DIR$/lab1.iml" />
+    </modules>
+  </component>
+</project>

Calc/src/calc/Calc.java

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+package calc;
+
+public class Calc {
+    public static void main(String[] args) {
+        Calculator calc = new Calculator();
+
+        int a = 10;
+        int b = 4;
+
+        System.out.println("Сложение: " + calc.add(a, b));
+        System.out.println("Вычитание: " + calc.sub(a, b));
+        System.out.println("Умножение: " + calc.mul(a, b));
+        System.out.println("Деление: " + calc.div(a, b));
+
+        System.out.println("Квадрат числа a=" + a + " равен " + calc.square(a));
+    }
+}

Calc/src/calc/Calculator.java

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+package calc;
+
+import calc.operation.Adder;
+import calc.operation.Subtractor;
+import calc.operation.Multiplier;
+import calc.operation.Divider;
+import calc.operation.Squarer;
+
+public class Calculator {
+
+    // Сложение
+    public int add(int a, int b) {
+        return Adder.calculate(a, b);
+    }
+
+    // Вычитание
+    public int sub(int a, int b) {
+        return Subtractor.calculate(a, b);
+    }
+
+    // Умножение
+    public int mul(int a, int b) {
+        return Multiplier.calculate(a, b);
+    }
+
+    // Деление
+    public int div(int a, int b) {
+        return Divider.calculate(a, b);
+    }
+
+    // Дополнительная операция – возведение в квадрат
+    public int square(int a) {
+        return Squarer.calculate(a);
+    }
+}

Calc/src/calc/operation/Adder.java

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+package calc.operation;
+
+public class Adder {
+    public static int calculate(int a, int b) {
+        return a + b;
+    }
+}

Calc/src/calc/operation/Divider.java

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+package calc.operation;
+
+public class Divider {
+    public static int calculate(int a, int b) {
+        if (b == 0) {
+            return -1;
+        }
+        return a / b;
+    }
+}

Calc/src/calc/operation/Multiplier.java

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+package calc.operation;
+
+public class Multiplier {
+    public static int calculate(int a, int b) {
+        return a * b;
+    }
+}

Calc/src/calc/operation/Squarer.java

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+package calc.operation;
+
+public class Squarer {
+    public static int calculate(int a) {
+        return a * a;
+    }
+}

Calc/src/calc/operation/Subtractor.java

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+package calc.operation;
+
+public class Subtractor {
+    public static int calculate(int a, int b) {
+        return a - b;
+    }
+}

lab1.iml

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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://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

listings/GraphTest01.java

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+import java.awt.*;
+import java.awt.event.*;
+
+class GraphTest01 extends Frame {
+  GraphTest01(String s) {
+    super(s);
+    setBounds(0, 0, 500, 300);
+    setVisible(true);
+  }
+
+  public void paint(Graphics g) {
+    Dimension d = getSize();
+    int dx = d.width / 20, dy = d.height / 20;
+    int myWidth = 250, myHeight = 250;
+    g.drawLine(0, 0, myWidth, myHeight);
+    g.drawLine(0, 0, d.width, d.height);
+    setBackground(Color.blue);
+    setForeground(Color.red);
+  }
+  
+  public static void main(String[] args) {
+    GraphTest01 f = new GraphTest01("Пример рисования");
+    f.addWindowListener(new WindowAdapter() {
+      public void windowClosing(WindowEvent ev) {
+        System.exit(0);
+      }
+    });
+  }
+}
+

listings/HelloWorldFrame.java

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+import javax.swing.*;
+import java.awt.*;
+
+class HelloWorldFrame extends JFrame {
+    HelloWorldFrame (String s) {
+        super(s);
+    }
+
+    public void paint(Graphics g) {
+        g.setFont(new Font("Serif", Font.ITALIC | Font.BOLD, 30));
+        g.drawString("Hello, XXI century World!", 20, 100);
+    }
+
+    public static void main(String[] args) {
+        JFrame f = new HelloWorldFrame("Здраствуй, мир XXI века!");
+        f.setSize(400, 150);
+        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        f.setVisible(true);
+    }
+}

listings/JavaApplication1.java

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+public class JavaApplication1 {
+  public static void main(String[] args) {
+    System.out.println("Hello World!");
+    Calculator calc = new Calculator();
+    System.out.println("2+2=" + calc.sum(2, 2));
+  }
+
+  public static class Adder {
+
+    private int sum;
+    public Adder() { sum = 0; }
+    public Adder(int a) { this.sum = a; }
+    
+    public void add (int b) {
+      sum += b;
+    }
+
+    public int getSum() { return sum; }
+
+  }
+
+  public static class Calculator {
+    public int sum(int... a) {
+      Adder adder = new Adder();
+      for (int i:a) {
+        adder.add(i);
+      }
+      return adder.getSum();
+    }
+  }
+};

listings/SimpleFrame.java

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+import java.awt.*;
+import java.awt.event.*;
+
+class SimpleFrame extends Frame {
+  SimpleFrame(String s) {
+    super(s);
+    setSize(400, 150);
+    setVisible(true);
+    
+    addWindowListener(new WindowAdapter() {
+      public void windowClosing(WindowEvent ev) {
+        dispose();
+        System.exit(0);
+      }
+    });
+   
+  }
+
+
+  public static void main(String[] args) {
+    new SimpleFrame("Моя программа");
+  }
+}

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>lab1</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>23</maven.compiler.source>
+        <maven.compiler.target>23</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

src/GraphicsPrimitives.java

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+import javax.swing.*;
+import java.awt.*;
+
+public class GraphicsPrimitives extends JPanel {
+
+    @Override
+    protected void paintComponent(Graphics g) {
+        super.paintComponent(g);
+
+        // Рисуем круг
+        g.setColor(Color.RED);
+        // (50, 50) – координаты левого верхнего угла ограничивающего прямоугольника, 100 – диаметр
+        g.drawOval(50, 50, 100, 100);
+
+        // Рисуем квадрат
+        g.setColor(Color.BLUE);
+        // (200, 50) – координаты левого верхнего угла, 100 – размер стороны квадрата
+        g.drawRect(200, 50, 100, 100);
+
+        // Линия
+        g.setColor(Color.GREEN);
+        g.drawLine(50, 200, 150, 250);
+
+        // Заполненный прямоугольник
+        g.setColor(Color.MAGENTA);
+        // Метод fillRect() заполняет прямоугольник цветом
+        g.fillRect(200, 200, 100, 50);
+
+        // Эллипс
+        g.setColor(Color.ORANGE);
+        g.drawOval(350, 200, 120, 60);
+
+        // "звездообразный" узор
+        g.setColor(Color.BLACK);
+        int centerX = 450;
+        int centerY = 300;
+        int radius = 50;
+        // Рисуем линии расходящиеся из центра с шагом 30 градусов
+        for (int angle = 0; angle < 360; angle += 30) {
+            int xEnd = centerX + (int) (radius * Math.cos(Math.toRadians(angle)));
+            int yEnd = centerY + (int) (radius * Math.sin(Math.toRadians(angle)));
+            g.drawLine(centerX, centerY, xEnd, yEnd);
+        }
+    }
+
+    public static void main(String[] args) {
+        JFrame frame = new JFrame("Пример графических примитивов");
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setSize(600, 400);
+        frame.add(new GraphicsPrimitives());
+        frame.setLocationRelativeTo(null);
+        frame.setVisible(true);
+    }
+}

src/Main.java

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+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+
+
+import java.awt.*;
+import java.awt.event.*;
+
+class GraphTest01 extends Frame {
+
+}
+
+
+//import java.awt.*;
+//import java.awt.event.*;
+//
+//class HelloWorldFrame extends Frame {
+//    HelloWorldFrame (String s) {
+//        super(s);
+//    }
+//
+//    public void paint (Graphics g) {
+//        g.setFont(new Font("Serif", Font.ITALIC | Font.BOLD, 30));
+//        g.drawString("Hello, XXI century World!", 20, 100);
+//    }
+//
+//    public static void main(String[] args) {
+//        Frame f = new HelloWorldFrame("Здраствуй, мир XXI века!");
+//        f.setSize(400, 150);
+//        f.setVisible(true);
+//
+//        f.addWindowListener(new WindowAdapter() {
+//            public void windowClosing(WindowEvent ev) {
+//                System.exit(0);
+//            }
+//        });
+//    }
+//}
+
+
+
+
+
+//public class Main {
+//    public static void main(String[] args) {
+//        //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
+//        // to see how IntelliJ IDEA suggests fixing it.
+//        System.out.printf("Hello and welcome!");
+//
+//        for (int i = 1; i <= 5; i++) {
+//            //TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
+//            // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
+//            System.out.println("i = " + i);
+//        }
+//    }
+//}

src/main/java/org/example/Main.java

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+package org.example;
+
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+public class Main {
+    public static void main(String[] args) {
+        //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
+        // to see how IntelliJ IDEA suggests fixing it.
+        System.out.printf("Hello and welcome!");
+
+        for (int i = 1; i <= 5; i++) {
+            //TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
+            // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
+            System.out.println("i = " + i);
+        }
+    }
+}