example7_25.java.bak

来自「不错的教程 适合中高级人员的使用」· BAK 代码 · 共 43 行

import java.awt.*;import java.awt.event.*;
class MyFrame extends Frame implements WindowListener 
{  TextArea text;
   MyFrame(String s)
   {  super(s);
      setBounds(100,100,200,300);
      setVisible(true);
      text=new TextArea();
      add(text,BorderLayout.CENTER); 
      addWindowListener(this);
      validate();
   } 
   public void windowActivated(WindowEvent e)
   {  text.append("\n我被激活");
      validate();
   }
   public void windowDeactivated(WindowEvent e)
   {  text.append("\n我不是激活状态了");
      setBounds(0,0,400,400); validate();
   }
   public void windowClosing(WindowEvent e)
   {  text.append("\n窗口正在关闭呢"); dispose();
   }
   public void windowClosed(WindowEvent e)
   {  System.out.println("程序结束运行"); 
      System.exit(0);
   }
   public void windowIconified(WindowEvent e)
   {  text.append("\n我图标化了");
   }
   public void windowDeiconified(WindowEvent e)
   {  text.append("\n我撤消图标化"); 
      setBounds(0,0,400,400);validate();
   }
   public void windowOpened(WindowEvent e){ }
}
class Example7_25
{ ublic static void main(String args[])
   {  new MyFrame("窗口");
   }
}