what is wrong with this program ?

[Poor Bee]

This applet is to create two labels ( Oval ) and ( Line ) . so when we click the button Oval it draws Oval shape , and same with Line ..

*** The problem is when I run the prog .. Its shows the 2 buttons and the Oval shape is already there .. when I click the (Line) button it doesnt work ( it changes the Oval color from yellow to green ) ...

** I want to have separate action for each button. .
so when I click Oval .. it shows Oval with one color
and when I click Line ..it shows a line with one color ( the Oval shoud be disppear from da screen when Line is viewd )...


This is my program :


import java.awt.*;
import java.applet.*;
import java.awt.event.*;
public class Two extends Applet implements ActionListener
{
Button g,y;
char c;
public void init()
{
setLayout(new FlowLayout());
g=new Button("Oval");
y=new Button("Line");
g.addActionListener(this);
y.addActionListener(this);
add(g);
add(y);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==g)
{
c='g';
repaint();
}
if(e.getSource()==y)
{
c='y';
repaint();
}
}
public void paint(Graphics g)
{
g.setColor(Color.green);
if(c=='g')
g.setColor(Color.yellow);
if(c=='y')
g.drawLine(100,100,100,100);
g.fillOval(100,100,100,100);
}
}

[hardwired]

//  <applet code="AppletTwo" width="400" height="400"></applet>
//  atThePrompt>appletviewer AppletTwo.java
import java.awt.*;
import java.applet.*;
import java.awt.event.*;

public class AppletTwo extends Applet implements ActionListener
{
    Button g,y;
    char c;

    public void init()
    {
        System.out.println("default layout = " +
                            getLayout().getClass().getName());
        setLayout(new FlowLayout());
        g=new Button("Oval");
        y=new Button("Line");
        g.addActionListener(this);
        y.addActionListener(this);
        add(g);
        add(y);
    }

    public void actionPerformed(ActionEvent e)
    {
        if(e.getSource()==g)
        {
            c='g';
        }
        if(e.getSource()==y)
        {
            c='y';
        }
        repaint();
    }

    public void paint(Graphics g)
    { 
        if(c=='g')
        {
            g.setColor(Color.yellow);
            g.fillOval(100,100,100,100);
        }
        if(c=='y')
        {
            g.setColor(Color.green);
            //            x1, y1, x2, y2
//            g.drawLine(100,100,100,100);
            g.drawLine(50,50,200,200);
        }
    }
}