How to print contents of JFrame in java

easywayprogramming.com How to print contents of jframe in java
How to print contents of jframe in java?

Many developers found it difficult to print contents of jframe in java.
Following example shows how to do it.

print.java

import java.awt.Canvas;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.PrintJob;
import java.awt.Toolkit;
import java.awt.Color;

import javax.swing.JFrame;
import java.util.Properties;

public class print extends JFrame
{
      PrintCanvas my_canvas = new PrintCanvas();

      public print()
      {
        add("Center", my_canvas);
        setSize(500, 500);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setTitle("Ashish Wagh");
        setVisible(true);
        String name = "Ashish Wagh";

        Properties properties = new Properties();
        PrintJob pj = Toolkit.getDefaultToolkit().getPrintJob(print.this, name, properties);
        if (pj != null)
        {
              my_canvas.printAll(pj.getGraphics());
              pj.end();
        }
      }

      public static void main(String args[])
      {
        print p= new print();
      }
}

class PrintCanvas extends Canvas
{
  public void paint(Graphics g)
  {
    Dimension size = getSize();
    int width = size.width;
    int height = size.height;
    int x1 = (int) (width * 0.1);
    int x2 = (int) (width * 0.9);
    int y1 = (int) (height * 0.1);
    int y2 = (int) (height * 0.9);

    g.setColor(Color.YELLOW);
    g.fillRect(x1, y1, x2 - x1, y2 - y1);
    g.setColor(Color.GREEN);
    g.drawRect(x1, y1, x2 - x1, y2 - y1);
    g.drawOval(x1, y1, x2 - x1, y2 - y1);
    g.setColor(Color.RED);
    g.drawLine(x1, y1, x2, y2);
    g.drawLine(x2, y1, x1, y2);
    g.setColor(Color.BLACK);
    String text = "Ashish!";
    text += text;
    text += text;
    g.drawString(text, x1, (int) ((y1 + y2) / 2));
    g.drawString("Ashish",(int)(width/2)-(width/20), (int)(y1+(y2/4)));
    g.drawString("Ashish",(int)(width/2)-(width/20), (int)(y1+((3*y2)/4)));
    g.dispose();
  }
}