Graphics2D: rotate(double theta) : Graphics2D « java.awt « Java by API

1. Java by API
2. java.awt
3. Graphics2D

Graphics2D: rotate(double theta)

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

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

public class MainClass extends JPanel {

  public void paint(Graphics g) {

    g.fillRect(0, 0, 20, 20);

    Graphics2D g2 = (Graphics2D) g;

    g2.translate(50, 50);
    g2.rotate(30.0 * Math.PI / 180.0);

    g2.scale(2.0, 2.0);

    g.setColor(Color.red);

    g.fillRect(0, 0, 20, 20);

  }

  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200, 200);
    frame.setVisible(true);
  }
}
           
       

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