Add JPanel into JFrame

Source code below will show you, how to add a JPanel into JFrame.

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COMPLETE SOURCE CODE FOR : AddJPanelIntoJFrame.java
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import javax.swing.JPanel;
import javax.swing.JFrame;

public class AddJPanelIntoJFrame
{
public static void main(String[]args)
{
//Create a panel
JPanel panel=new JPanel();

//Create a window using JFrame with title ( Add JPanel into JFrame )
JFrame frame=new JFrame("Add JPanel into JFrame");

//add created panel into JFrame
frame.add(panel);

//Set default close operation for JFrame
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//Set JFrame size to :
//Width : 400 pixels
//Height : 400 pixels
frame.setSize(400,400);

//Make JFrame visible. So we can see it
frame.setVisible(true);
}
}


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JUST COMPILE AND EXECUTE IT
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