/**
* This class implements the functionality of fetching the size of the screen
*/
package com.leo.util;
/**
* @author Leo Share
* @since 07/16/2007
* @version 1.0
*/
class ScreenSize{
  private int screenWidth;
  private int screenHeight;
  public void setScreenWidth(int screenWidth){
    this.screenWidth = screenWidth;
  }
  public void setScreenHeight(int screenHeight){
    this.screenHeight = screenHeight;
  }
  public int getScreenWidth(){
    setScreenWidth((int)java.awt.Toolkit.getDefaultToolkit().getScreenSize().width);
    return screenWidth;
  }
  public int getScreenHeight(){
    setScreenHeight((int)java.awt.Toolkit.getDefaultToolkit().getScreenSize().height);
    return screenHeight;
  }
}

int screenWidth = ((int)java.awt.Toolkit.getDefaultToolkit().getScreenSize().width);
int screenHeight = ((int)java.awt.Toolkit.getDefaultToolkit().getScreenSize().height);
JFrame myFrame = new JFrame();
myFrame.setSize(800, 600)//设置Frame的大小
myFrame.setLocation((screenWidth-800)/2, (screenHeight-600)/2);//设置Frame显示在屏幕中央