Lab9 черновик

package Task1;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.EventListener;

public class Main extends JFrame {

    JFrame frame = new JFrame();
    JButton btn = new JButton("Press here");

    public Main() {

        btn.setSize(100, 50);
        frame.setSize(1400, 700);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLayout(new BorderLayout(3, 3));
        frame.add(btn);
        frame.setVisible(true);
        ActionListener actionListener = new TestActionListener();
        btn.addActionListener(actionListener);
    }
    Rectangle rect = new Rectangle();
    Oval ov = new Oval();;
    Arc a = new Arc();
    public class TestActionListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {


                for (int i = 0; i < 20; i++) {
                    switch ((int) (Math.random() * 3)) {
                        case 0: {

                            frame.add(ov);
                            frame.setVisible(true);
                            break;
                        }
                        case 1: {

                            frame.add(rect);
                            frame.setVisible(true);
                            break;
                        }
                        case 2: {

                            frame.add(a);
                            frame.setVisible(true);
                            break;
                        }
                    }
                }
            }

    };



        public static void main(String[] args) {
        Main m=new Main();
    }
}

//
package Task1;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.EventListener;

public class Main extends JFrame {

    JFrame frame = new JFrame();
    JButton btn = new JButton("Press here");

    public Main() {

        frame.setBounds(100,0,800,600);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);



        btn.addActionListener(new EventListener());

        frame.add(btn);
        frame.setVisible(true);
        btn.setVisible(true);
    }
    Rectangle rect = new Rectangle();
    Oval ov = new Oval();;
    Arc a = new Arc();
    public class EventListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {


                for (int i = 0; i < 20; i++) {
                    switch ((int) (Math.random() * 3)) {
                        case 0: {

                            frame.add(ov);
                            frame.setVisible(true);
                            break;
                        }
                        case 1: {

                            frame.add(rect);
                            frame.setVisible(true);
                            break;
                        }
                        case 2: {

                            frame.add(a);
                            frame.setVisible(true);
                            break;
                        }
                    }
                }
            }

    };



        public static void main(String[] args) {
        Main m=new Main();

    }
}