jpanel

[mharsijamel]

when i made a class that extends Jpanel it works
but now, i have another extends so i want to know what i should to do to use jpanel in a jframe(without extends Jpanel) and to show them(from void main or a call of a method)
please help me

[DarrylBurke]

Favor composition over inheritance. Your class can have any number of JFrames/JPanels whatever as static or instance members, or local variables.

Extending a class is done to add/modify state or behavior. Not just for use.

db

[mharsijamel]

please give me an example of class that contains jpanel + its call

[mharsijamel]

i still in wait of example : java class without extends that contains a jframe and a jpanel at least

[milovan]

Ok, if I understand you right, following VERY simple example might help.

import javax.swing.JPanel; 
import javax.swing.JFrame;   

class Example {
	
	JFrame frame;
	JPanel panel;
	
	public Example(){
		frame = new JFrame();
		panel = new JPanel();
		frame.add(panel);
		frame.setVisible(true);
	}
	
	public static void main(String[] args) {   
		new Example();
	}
}

[mharsijamel]

really, very thanks