Source Code : Rotation and coordinate translation

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Rotation and coordinate translation

   

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class Rotate extends JPanel {

  public void paint(Graphics g) {
    super.paint(g);
    Graphics2D g2d = (Graphics2D) g;
    g2d.setColor(new Color(150, 150, 150));
    g2d.fillRect(20, 20, 80, 50);
    g2d.translate(180, -150);
    g2d.rotate(Math.PI / 4);
    g2d.fillRect(20, 20, 80, 50);
  }

  public static void main(String[] args) {
    JFrame frame = new JFrame("Rotation");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new Rotate());
    frame.setSize(300, 200);
    frame.setVisible(true);
  }
}

   
    
    
  

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