JFrame showing nothing.

[chdboy]

I'm not able to see content on JFrame ,when JFrame shows up.

import java.awt.*;

import javax.swing.*;
import java.awt.event.*;
public class GraphicUse extends JPanel
{
public void PaintComponent(Graphics gr)
{
super.paintComponents(gr);
this.setBackground(Color.BLUE);
gr.setColor(Color.WHITE);
gr.fillRect(50, 50, 100, 100);
gr.setColor(new Color(139,38,190));
gr.fillRect(50, 70, 100, 100);
gr.setColor(Color.RED);
gr.drawString("This is a new String", 50, 90);
}

public static void main(String\[\] args) 
{
}

}

And displaying it in another class which extends Frame

JFrame newframe = new JFrame("Color Frame");
newframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
GraphicUse gu = new GraphicUse();
newframe.add(gu);
newframe.setSize(250,300);
newframe.setVisible(true);

[Lost User]

Why does your main method not do anything?

Veni, vidi, abiit domum

[chdboy]

I'm calling this class from another class so it is using that main class main method.

[Lost User]

Well you need to provide some more detail about your problem.

Veni, vidi, abiit domum

[chdboy]

what other details you need?

[Lost User]

No idea; but you need to provide enough to help people to understand the problem. Remember, we have never seen your code before so we cannot guess what each part is supposed to do or how it fits together. Having a blank main method in the code you showed above just serves to confuse.

Veni, vidi, abiit domum

[suvi from mumbai]

Your frame is covered by a gray frame thats why paint method do not show anything.