УП 3.1

1_src_Clock.java

import javax.imageio.ImageIO;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class Clock extends JFrame implements ActionListener {
    private PaintPanel clockFace;
    private BufferedImage clock;
    private Timer timer;
    private Time time;
    private Clip tick;
    //center 172, 300;

    public Clock() throws HeadlessException {
        super("Clock");
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
            setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            setIconImage(new ImageIcon("src\\gear.png").getImage());
            clockFace = new PaintPanel(360, 480);
            clockFace.setDoubleBuffered(true);
            clock = ImageIO.read(new File("src\\clock.png"));
            Graphics2D graphics = (Graphics2D) clock.getGraphics();
            graphics.setColor(Color.BLACK);
            graphics.setStroke(new BasicStroke(6));
            graphics.drawOval(29, 157, 286, 286);
            timer = new Timer(1000, this);
            tick = AudioSystem.getClip();
            tick.open(AudioSystem.getAudioInputStream(new File("src\\tick.wav")));
            tick.loop(Integer.MAX_VALUE);
            time = new Time();
            clockFace.loadImage(clock);
            draw();
            add(clockFace);
            pack();
            timer.start();
            tick.start();
            setLocationRelativeTo(null);
            setResizable(false);
            setVisible(true);
        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException
                | UnsupportedLookAndFeelException | IOException |
                UnsupportedAudioFileException | LineUnavailableException e) {
            System.err.println(e.getMessage());
        }
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == timer) {
            time.plus();
            clockFace.loadImage(clock);
            draw();
        }
    }

    private void draw() {
        Graphics2D graphics = (Graphics2D) clockFace.getBuffer().getGraphics();
        graphics.setColor(Color.BLACK);
        graphics.setStroke(new BasicStroke(6));
        graphics.drawLine(172, 300,
                172 + (int) Math.round(80 * Math.sin(Math.toRadians(time.hours * 30))),
                300 - (int) Math.round(80 * Math.cos(Math.toRadians(time.hours * 30))));
        graphics.setStroke(new BasicStroke(4));
        graphics.drawLine(172, 300,
                172 + (int) Math.round(100 * Math.sin(Math.toRadians(time.minutes * 6))),
                300 - (int) Math.round(100 * Math.cos(Math.toRadians(time.minutes * 6))));
        graphics.setColor(Color.RED);
        graphics.setStroke(new BasicStroke(2));
        graphics.drawLine(172, 300,
                172 + (int) Math.round(120 * Math.sin(Math.toRadians(time.seconds * 6))),
                300 - (int) Math.round(120 * Math.cos(Math.toRadians(time.seconds * 6))));
        graphics.setColor(Color.BLACK);
        graphics.setStroke(new BasicStroke(10));
        graphics.drawOval(167, 295, 10, 10);
        clockFace.repaint();
    }
}

1_src_Main.java

public class Main {

    public static void main(String[] args) {
        Clock clock = new Clock();
    }
}

1_src_PaintPanel.java

import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;

public class PaintPanel extends JPanel {
    private BufferedImage bufferedImage;

    public PaintPanel(int width, int height) {
        setPreferredSize(new Dimension(width, height));
    }

    @Override
    public void setPreferredSize(Dimension dimension) {
        super.setPreferredSize(dimension);
        bufferedImage = new BufferedImage(dimension.width, dimension.height, BufferedImage.TYPE_INT_ARGB);
        Graphics2D graphics = (Graphics2D) bufferedImage.getGraphics();
        graphics.setBackground(new Color(1, 1, 1, 0f));
        graphics.clearRect(0, 0, dimension.width, dimension.height);
        graphics.dispose();
    }

    @Override
    protected void paintComponent(Graphics graphics) {
        graphics.drawImage(bufferedImage, 0, 0, null);
    }

    public BufferedImage getBuffer() {
        return bufferedImage;
    }

    public void loadImage(BufferedImage buf) {
        bufferedImage.createGraphics().setColor(Color.WHITE);
        bufferedImage.createGraphics().fillRect(0, 0, getWidth(), getHeight());
        bufferedImage.createGraphics().drawImage(buf, 0, 0, null);
        repaint();
    }
}

1_src_Time.java

import java.time.LocalDateTime;

public class Time {
    int seconds;
    int minutes;
    int hours;

    public Time() {
        LocalDateTime time = LocalDateTime.now();
        seconds = time.getSecond();
        minutes = time.getMinute();
        hours = time.getHour() % 12;
    }

    public void plus() {
        if (seconds == 59) {
            seconds = 0;
            if (minutes == 59) {
                minutes = 0;
                if (hours == 11) {
                    hours = 0;
                } else {
                    hours++;
                }
            } else {
                minutes++;
            }
        } else {
            seconds++;
        }
    }
}