Dimensions of a Frame

A JFrame object has a setSize() method that is used to change the size of the frame on the computer monitor. The size can be changed as the program runs. For example, the following program works (although it is mostly useless):

import java.awt.*;
import javax.swing.*;

public class TestFrame1
{
  public static void main ( String[] args )
  {
    int height=100, width=200;
    JFrame frame = new JFrame("Test Frame 1");
    frame.setSize( width, height );
    frame.setVisible( true );
    frame.setSize( width+50, height+75 );
  }
}