/*Java Applet to Print Concentric Circles using Applet*/
              import java.applet.*;
              import java.awt.*;
              public class pro7 extends Applet
              {
                  //Initialize the applet
                  public void init()
                  {
                setBackground(Color.yellow);
                  }
                  //Draw cocentric circle
                  public void paint(Graphics g)
                  {
                g.setColor(Color.red);
                int rad=25;
                int dia=50;
                for(int i=0;i<4;i++)
                {
                    g.drawOval(250-(i*rad),250-(i*rad),(i+1)*dia,(i+1)*dia);
                }
                  }
              }
              /*
              
              
              */