Source Code : Drawing a line to JFrame???

Drawing a line to JFrame??? 

import java.util.*;

import java.io.*;

import javax.swing.JFrame;

import javax.swing.JPanel;

import java.awt.*;

public class Operation {

public static void main(String args[]){

DrawPanel panel = new DrawPanel();

JFrame frame = new JFrame("Voronoi Diagram");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOS E);

frame.add(panel);

frame.setSize(800, 600);

frame.setLocation(220, 150);

frame.setVisible(true);

}

}

public class DrawPanel extends JPanel{

private static final long serialVersionUID = 1L;

public void PaintComponent(Graphics g){

super.paintComponent(g);

g.setColor(Color.orange);

g.drawLine(5, 10, 50, 60);

}

}