Small problem in Line Display part. Very few line in Code

Question

I wanted to display line graph. I tried to draw the line. But It is not display. Pls. see the code and help to display the line
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.awt.geom.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
public class Work_Graph
public static void main (String args[])
Frame Graph = new Work_Graph1();
Graph.show();
class Work_Graph1 extends Frame
Image bckImg;
Graphics g;
int x1=0;
int y1=0;
int x2=0;
int y2=0;
public void work_Graph1()
setTitle("Line Chart");
setSize(300,200);
setLayout(new BorderLayout());
addWindowListener(new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
bckImg = createImage(getSize().width, getSize().height);
g = bckImg.getGraphics();
//Draw Vertical Line
x1=50;
y1=0;
x2=50;
y2=400;
g.setColor(Color.black);
g.drawLine(x1,y1,x2,y2);
//Draw Harizontal Line
x1=50;
y1=400;
x2=400;
y2=400;
g.setColor(Color.black);
g.drawLine(x1,y1,x2,y2);
update(getGraphics());
public void paint(Graphics g)
if (bckImg != null)
g.drawImage(bckImg, 0, 0, this);
}

Answer 1

The method
public void work_Graph1() {...}
isn't called by anything, and so the code isn't executed. You might have meant this to be a constructor, in which case it should be called:
public Work_Graph1() {...}