Using and Working with Frame in Java Explanation with Example

Working with Frame Windows  

• Frame class is used to create child windows within applets, and top-level or child windows for stand-alone applications. 
• it creates a standard-style window.
• Here are two of Frame’s constructors:
• Frame( )
• Frame(String title)
• The first form creates a standard window that does not contain a title. 
• The second form creates a window with the title specified by title. 
• Notice that you cannot specify the dimensions of the window. 
• Instead, you must set the size of the window after it has been created.

Using Frame  

• There are several key methods you will use when working with Frame windows. 
• The setSize( ) method is used to set the dimensions of the window. Its signature is shown here:
• void setSize(int newWidth, int newHeight)
• void setSize(Dimension newSize)
• The new size of the window is specified by newWidth and newHeight, or by the width and height fields of the Dimension object passed in newSize.
• The dimensions are specified in terms of pixels.
• The getSize( ) method is used to obtain the current size of a window. Its signature is shown here:
• Dimension getSize( )
• This method returns the current size of the window contained within the width and height fields of a Dimension object.

Example of Using a Frame in Java Programming Language

Example1 

import java.awt.*;

class MyFrame 

{

public static void main(String as[])

{

Frame f=new Frame("My Window");

f.setSize(200,200);

f.setVisible(true);

}

}