Monday, 20 November 2017

Using java build a beautiful clock display current time

THIS IS THE CODE TO DISPLAY A BEAUTIFUL CLOCK

 package javaaa;

import java.awt.*;
import java.awt.geom.*;
 import java.awt.event.*;
 import java.util.Calendar;
 import javax.swing.*;

public class Javaaa extends JApplet {
 public static void main(String s[]) {
 JFrame frame = new JFrame();
 frame.setTitle("Clock");

 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 JApplet applet = new Javaaa();
 applet.init();
 frame.getContentPane().add(applet);
 frame.pack();
 frame.setVisible(true);
 }

 public void init() {
 JPanel panel = new ClockPanel();
 getContentPane().add(panel);
 }
 }
 class ClockPanel extends JPanel implements ActionListener{
 AffineTransform rotH = new AffineTransform();
 AffineTransform rotM = new AffineTransform();
 AffineTransform rotS = new AffineTransform();

 public ClockPanel() {
 setPreferredSize(new Dimension(640, 480));
 setBackground(Color.white);
 Timer timer = new Timer(500, this);
 timer.start();
 }

 public void paintComponent(Graphics g) {
 super.paintComponent(g);
 Graphics2D g2 = (Graphics2D)g;
 Font currentFont = g2.getFont();
 g2.translate(320,240);
 // clock face
 Paint paint = new GradientPaint
 (-140,-140,Color.GREEN,-10,-10,Color.ORANGE);
 g2.setPaint(paint);
 g2.fillOval(-210, -210, 420, 420);
 g2.setColor(Color.red);
  Font newFont = currentFont.deriveFont(currentFont.getSize() * 3.4F);
            g2.setFont(newFont);
 g2.drawString("CLOCK", -70, 80);
 g2.setColor(Color.black);
  Font newFont1 = currentFont.deriveFont(currentFont.getSize() * 2.4F);
            g2.setFont(newFont1);
 g2.drawString("12", -18, -140);
 g2.drawString("3", 134, 19);
 g2.drawString("6", -8, 159);
 g2.drawString("9", -149, 20);
 Stroke stroke = new BasicStroke(3);
 g2.setStroke(stroke);
 g2.drawOval(-210, -210, 420, 420);
 for (int i = 0; i < 24; i++) {
 g2.rotate(2*Math.PI/12);
 if(i%2==0)
     g2.setColor(Color.BLUE);
 else
     g2.setColor(Color.red);
            
 g2.fill3DRect(-30, -200, 60, 30, true);
 }
 // clock hands
 Shape hour = new Line2D.Double(0, 0, 0, -100);
 hour = rotH.createTransformedShape(hour);
 Shape minute = new Line2D.Double(0, 0, 0, -140);
 minute = rotM.createTransformedShape(minute);
 Shape second = new Line2D.Double(0, 0, 0, -170);
 second = rotS.createTransformedShape(second);
 g2.setColor(Color.MAGENTA);
 g2.setStroke(new BasicStroke(10,
 BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
 g2.draw(hour);
 g2.draw(minute);
 g2.setStroke(new BasicStroke(4));
 g2.draw(second);
 }
 public void actionPerformed(ActionEvent e) {
 int hour = Calendar.getInstance().get(Calendar.HOUR);
 int min = Calendar.getInstance().get(Calendar.MINUTE);
 int sec = Calendar.getInstance().get(Calendar.SECOND);
 rotH.setToRotation(Math.PI * (hour+min/60.0)/6.0);
 rotM.setToRotation(Math.PI * min /30.0);
 rotS.setToRotation(Math.PI * sec /30.0);
 repaint();
}}

OUTPUT

                    

Wednesday, 15 November 2017

java graphical prjects

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class

package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
       
           int a=16,s=30,d=400,f=400,h=1,j=1,k=1,l=1;
               for(int i=0;i<14;i++)
               {
                  Ellipse2D.Double R= new Ellipse2D.Double(d,s,d,f);
                  g2.draw(R);
                  Rectangle E= new Rectangle(s,s,a,f);
                  g2.draw(E);
                  if(i%2==0)
                  {  g2.setColor(Color.BLACK);
                      g2.fill(R);
                  }
               
                      if(i%2==1){
                      g2.setColor(Color.green
                      );
                      g2.fill(E);}
                      if(i%2==0)
                      { g2.setColor(Color.yellow);
                      g2.fill(E);}
                    if(i%2==1)
                  {    g2.setColor(Color.red);
                      g2.fill(R);
                  }
                  a+=14;s+=14;d-=30;f-=30;
                  h+=1;j+=1;k+=1;l+=1;
          
    }}
}


Output is

                  

java graphics projects

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class

package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
       
           int a=16,s=30,d=400,f=400,h=1,j=1,k=1,l=1;
               for(int i=0;i<14;i++)
               {
                  Ellipse2D.Double R= new Ellipse2D.Double(s,s,d,f);
                  g2.draw(R);
                  Rectangle E= new Rectangle(h,s,d,f);
                  g2.draw(E);
                  if(i%2==0)
                  {  g2.setColor(Color.BLACK);
                      g2.fill(R);
                  }
               
                      if(i%2==1){
                      g2.setColor(Color.green
                      );
                      g2.fill(E);}
                      if(i%2==0)
                      { g2.setColor(Color.yellow);
                      g2.fill(E);}
                    if(i%2==1)
                  {    g2.setColor(Color.red);
                      g2.fill(R);
                  }
                  a+=14;s+=14;d-=30;f-=30;
                  h+=1;j+=1;k+=1;l+=1;
          
    }}
}


Output is

              

java full 3d drawings

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class

package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
      
           int a=16,s=30,d=400,f=400,h=1,j=1,k=1,l=1;
               for(int i=0;i<14;i++)
               {
                  Ellipse2D.Double R= new Ellipse2D.Double(1,s,d,f);
                  g2.draw(R);
                  Rectangle E= new Rectangle(a,l,d,f);
                  g2.draw(E);
                  if(i%2==0)
                  {  g2.setColor(Color.BLACK);
                      g2.fill(R);
                  }
              
                      if(i%2==1){
                      g2.setColor(Color.green
                      );
                      g2.fill(E);}
                      if(i%2==0)
                      { g2.setColor(Color.yellow);
                      g2.fill(E);}
                    if(i%2==1)
                  {    g2.setColor(Color.red);
                      g2.fill(R);
                  }
                  a+=14;s+=14;d-=30;f-=30;
                  h+=1;j+=1;k+=1;l+=1;
         
    }}
}


Output is

               

java 3d drawing top 10 programs

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class

package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
       
           int a=16,s=30,d=400,f=400;
               for(int i=0;i<14;i++)
               {
                  Ellipse2D.Double R= new Ellipse2D.Double(a,s,d,f);
                  g2.draw(R);
                  Rectangle E= new Rectangle(a,s,d,f);
                  g2.draw(E);
                  if(i%2==0)
                  {  g2.setColor(Color.BLACK);
                      g2.fill(R);
                  }
               
                      if(i%2==1){
                      g2.setColor(Color.green
                      );
                      g2.fill(E);}
                      if(i%2==0)
                      { g2.setColor(Color.yellow);
                      g2.fill(E);}
                    if(i%2==1)
                  {    g2.setColor(Color.red);
                      g2.fill(R);
                  }
                  a+=14;s+=14;d-=30;f-=30;
          
    }}
}



Output is

 

java program that print circles in circles

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class

package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
      
           int a=16,s=30,d=400,f=400;
               for(int i=0;i<14;i++)
               {
                  Ellipse2D.Double R= new Ellipse2D.Double(a,s,d,f);
                  g2.draw(R);
                  if(i%2==0)
                  {  g2.setColor(Color.BLACK);
                      g2.fill(R);
                  }
                  else
                  {    g2.setColor(Color.red);
                      g2.fill(R);
                  }
                  a+=14;s+=14;d-=30;f-=30;
         
    }}
}



Output is

         

java graphical programs

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class


package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
       
           int a=16,s=30,d=400,f=400;
               for(int i=0;i<14;i++)
               {
                   Rectangle R= new  Rectangle(a,s,d,f);
                  g2.draw(R);
                  if(i%2==0)
                  {  g2.setColor(Color.BLACK);
                      g2.fill(R);
                  }
                  else
                  {    g2.setColor(Color.green);
                      g2.fill(R);
                  }
                  a+=14;s+=14;d-=30;f-=30;
          
    }}
}


Output is

                    

java program that print olympic rings

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class


package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
        Ellipse2D.Double R= new Ellipse2D.Double(128,20,110,110);
           g2.draw(R);
           g2.setColor(Color.black);
           g2.fill(R);
 Ellipse2D.Double R2= new Ellipse2D.Double(138,30,90,90);
           g2.draw(R2);
           g2.setColor(Color.white);
           g2.fill(R2);
        Ellipse2D.Double R3= new Ellipse2D.Double(12,20,110,110);
           g2.draw(R3);
           g2.setColor(Color.BLUE);
           g2.fill(R3);
 Ellipse2D.Double R4= new Ellipse2D.Double(22,30,90,90);
           g2.draw(R4);
           g2.setColor(Color.white);
           g2.fill(R4);
               Ellipse2D.Double R7= new Ellipse2D.Double(244,20,110,110);
           g2.draw(R7);
           g2.setColor(Color.red);
           g2.fill(R7);
 Ellipse2D.Double R8= new Ellipse2D.Double(254,30,90,90);
           g2.draw(R8);
           g2.setColor(Color.white);
           g2.fill(R8);
               Ellipse2D.Double R9= new Ellipse2D.Double(194,95,110,110);
           g2.draw(R9);
           g2.setColor(Color.green);
           g2.fill(R9);
 Ellipse2D.Double R10= new Ellipse2D.Double(204,105,90,90);
           g2.draw(R10);
           g2.setColor(Color.white);
           g2.fill(R10);
              Ellipse2D.Double R11= new Ellipse2D.Double(65,95,110,110);
           g2.draw(R11);
           g2.setColor(Color.yellow);
           g2.fill(R11);
 Ellipse2D.Double R12= new Ellipse2D.Double(75,105,90,90);
           g2.draw(R12);
           g2.setColor(Color.white);
           g2.fill(R12);
          
    }
}

Output is

                            

java top 10 programs that print beautiful images

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class 

package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
       
            int a=1,s=1,d=12,f=1,l=1,h=1,j=1,k=1;

           for(int z=0;z<100;z++) {

              Ellipse2D.Double R11= new Ellipse2D.Double(a,s,d,f);

           g2.draw(R11);

           g2.setColor(Color.yellow);

           g2.fill(R11);

 Ellipse2D.Double R12= new Ellipse2D.Double(h,j,k,l);

           g2.draw(R12);

           g2.setColor(Color.white);

           g2.fill(R12);

         a+=3;s+=3;d+=3;f+=3;h+=1;j+=1;k+=1;l+=1;

                 

       

    }

           a=200;s=200;d=200;f=200;l=200;h=200;j=200;k=200;

           for(int z=0;z<100;z++) {

              Ellipse2D.Double R11= new Ellipse2D.Double(a,s,d,f);

           g2.draw(R11);

           g2.setColor(Color.MAGENTA);

           g2.fill(R11);

 Ellipse2D.Double R12= new Ellipse2D.Double(h,j,k,l);

           g2.draw(R12);

           g2.setColor(Color.white);

           g2.fill(R12);

         a+=3;s-=3;d-=3;f-=3;h-=1;j-=1;k-=1;l-=1;
         
    }}
}

Output is  

                  

java beautiful rings program

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class 



package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
        Ellipse2D.Double R= new Ellipse2D.Double(128,20,110,110);
           g2.draw(R);
           g2.setColor(Color.blue);
           g2.fill(R);
 Ellipse2D.Double R2= new Ellipse2D.Double(138,30,90,90);
           g2.draw(R2);
           g2.setColor(Color.white);
           g2.fill(R2);
        Ellipse2D.Double R3= new Ellipse2D.Double(12,20,110,110);
           g2.draw(R3);
           g2.setColor(Color.green);
           g2.fill(R3);
 Ellipse2D.Double R4= new Ellipse2D.Double(22,30,90,90);
           g2.draw(R4);
           g2.setColor(Color.white);
           g2.fill(R4);
               Ellipse2D.Double R7= new Ellipse2D.Double(244,20,110,110);
           g2.draw(R7);
           g2.setColor(Color.red);
           g2.fill(R7);
 Ellipse2D.Double R8= new Ellipse2D.Double(254,30,90,90);
           g2.draw(R8);
           g2.setColor(Color.white);
           g2.fill(R8);
               Ellipse2D.Double R9= new Ellipse2D.Double(244,121,110,110);
           g2.draw(R9);
           g2.setColor(Color.red);
           g2.fill(R9);
 Ellipse2D.Double R10= new Ellipse2D.Double(254,131,90,90);
           g2.draw(R10);
           g2.setColor(Color.white);
           g2.fill(R10);
              Ellipse2D.Double R11= new Ellipse2D.Double(12,121,110,110);
           g2.draw(R11);
           g2.setColor(Color.green);
           g2.fill(R11);
 Ellipse2D.Double R12= new Ellipse2D.Double(22,131,90,90);
           g2.draw(R12);
           g2.setColor(Color.white);
           g2.fill(R12);
             Ellipse2D.Double R18= new Ellipse2D.Double(128,121,110,110);
           g2.draw(R18);
           g2.setColor(Color.blue);
           g2.fill(R18);
 Ellipse2D.Double R19= new Ellipse2D.Double(138,131,90,90);
           g2.draw(R19);
           g2.setColor(Color.white);
           g2.fill(R19);
          
    }
}

Output is 

                     

java very beautiful drawing

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(700,700);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a class of paints and call it in main class

 

package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
                Graphics2D g2 = (Graphics2D) g;
       
           int a=1,s=1,d=1,f=1,l=1,h=1,j=1,k=1;
           for(int z=0;z<100;z++) {
              Ellipse2D.Double R11= new Ellipse2D.Double(a,s,d,f);
           g2.draw(R11);
           g2.setColor(Color.yellow);
           g2.fill(R11);
 Ellipse2D.Double R12= new Ellipse2D.Double(h,j,k,l);
           g2.draw(R12);
           g2.setColor(Color.white);
           g2.fill(R12);
         a+=3;s+=3;d+=3;f+=3;h+=1;j+=1;k+=1;l+=1;
                    
          
    }
           a=200;s=200;d=200;f=200;l=200;h=200;j=200;k=200;
           for(int z=0;z<100;z++) {
              Ellipse2D.Double R11= new Ellipse2D.Double(a,s,d,f);
           g2.draw(R11);
           g2.setColor(Color.MAGENTA);
           g2.fill(R11);
 Ellipse2D.Double R12= new Ellipse2D.Double(h,j,k,l);
           g2.draw(R12);
           g2.setColor(Color.white);
           g2.fill(R12);
         a+=3;s+=3;d-=3;f-=3;h-=1;j-=1;k-=1;l-=1;
                    
          
    }}
}

Output is 

               

Tuesday, 14 November 2017

jav program circles in rectangles

This is main class


package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(300,390);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}

After writing main class create a new class of paints

 
package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
       
        Graphics2D g2 = (Graphics2D) g;
        g2.drawString("An intelligent face", 10, 10);
       int i=1,j=1,k=1,l=1;
       for(int h=0;h<20;h++){
    Rectangle R= new Rectangle(i,j,k,l);
    g2.draw(R);
   
       Ellipse2D.Double E=new Ellipse2D.Double(i,j,k,l);
       g2.draw(E);
      
   
    i+=11;j+=9;k+=11;l+=9;
       }


}
}

////////////////////

Output is 


java 3d program A lot of rectangles in circles

This is main class

package graphs;
import javax.swing.*;
public class Graphs {

   
    public static void main(String[] args) {
       String title="ALLAH IS ONE";
      
       JFrame f= new JFrame();
       f.setSize(300,390);
       f.setTitle(title);
       paints P= new paints();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }
   
}


After writing main  class create a new class of paints


package graphs;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;

public class paints extends JComponent {
      public void paint(Graphics g)
    {
        Graphics2D g2 = (Graphics2D) g;
        g2.drawString("An intelligent face", 10, 10);
       int i=1,j=1,k=1,l=1,q=1,w=1,e=1,r=1;
       for(int h=0;h<20;h++){
    Rectangle R= new Rectangle(i,j,k,l);
    g2.draw(R);
   
       Ellipse2D.Double E=new Ellipse2D.Double(q,w,e,r);
       g2.draw(E);
      
    q+=1;w+=2;e+=10;r+=9;
    i+=3;j+=4;k+=5;l+=5;
       }

}
}

Output:

                  

java top ten 3D programs




This is main class
package test;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.ColorModel;
import javax.swing.JFrame;
class Test
{
   public static void main(String args[])
         
   {  String title="ALLAH IS ONE";
       for(int i=0;i<3;i++){
       JFrame f= new JFrame();
       f.setSize(200,300);
       if(i==2)
       f.setTitle(title);
       paint P= new paint();
       f.add(P);
       f.setVisible(true);
      f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 }
 }}
After the main class create a new class of paint and call it in main class
 


import java.awt.*;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;

public class paint extends JComponent {
    public void paint(Graphics g)
    {
        Graphics2D g2 = (Graphics2D) g;
        g2.drawString("An intelligent face", 10, 10);
       int i=1,j=1,k=1,l=1;
       for(int h=0;h<170;h++){
    Rectangle R= new Rectangle(i,j,k,l);
    g2.draw(R);
    i+=1;j+=1;k++;l++;
       }
}}

Output is