Creating a Frame
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In this page of the tutorials we are try to create a frame this frame work as like a window where we can add our controls for developping the application. In the Java Swing, top-level windows are represented by the JFrame class. Java supports the look and feel and decoration for the frame. 

setSize (400, 400):
setSize() method is used to set the size of the frame or window to width (400) and height (400) pixels.
This method is used to make the window visible.
This method is used to set the operation of close to Exit the application using the System exit method.


package r4r;
import javax.swing.*;
public class createframe {
	public static void main(String[] args){
		  JFrame frame = new JFrame("Frame Creation Done");
		  frame.setSize(400, 400);

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