class1.java

用Java实现图形界面下的字符输出

import java.awt.*;
public class Class1 
{
	public static void main(String args[])
	{ApplctFrame MyFrame=new ApplctFrame();}
}
class ApplctFrame extends Frame
{
	Label prompt;
	TextField input;
	Label output;
	ApplctFrame()
	{     super("Application Greaphics Frame 图形界面窗口");
		setLayout(new FlowLayout());
		prompt=new Label("请输入一个字符");
		input=new TextField(3);
		output=new Label("                                     ");
		add(prompt); add(input);  add(output);
		pack();show();
	}
	
	public boolean action(Event e,Object o)
	{   output.setText("You're entered character "+o.toString());
		return true;
	}
	public boolean handleEvent(Event evt)
	{  if(evt.id==Event.WINDOW_DEICONIFY)
	      System.exit(0);
		return super.handleEvent(evt);
	}
}