Write a program that uses the DrawingPanel to produces the following figure.
Solution
import java.awt.*;
public class DrawingEx
{
public static void main(String [] args)
{
DrawingPanel panel= new DrawingPanel(500,400);
Graphics g = panel.getGraphics();
g.setFont(new Font ("Monospaced",Font.Bold,14));
Scanner s=new Scanner(System.in);
System.out.println("enter number of lines");
int n= Integer.parseInt(s.readLine());
int m=n;
for(int i=0;i<n;i++)
{
for(int j=0;j<m-1;j++)
{

System.out.println(" ");
g.drawLine(m-1,0,m,n)
m--;
n--;
}
}
}