import java.awt.*;

public class selective_loops extends java.applet.Applet
  {

       public void paint (Graphics g)
         {

             g.setColor(Color.blue);

             int column = 0;
             while(column < 1024)
               {
				   g.drawLine(column,100,column,200);
				   column += 1;   //  column = column+20;
		       }

			 for(int col = 0; col < 1024; col += 1)
			   {
				   g.drawLine(col,300,col,400);
			   }

             for(int r=0; r<300; r=r+15)
               {
				   g.drawLine(100,r,200,r);
			   }


          }


 }