componentevent.java

来自「这是一个java程序」· Java 代码 · 共 42 行

/******************************************
*         class ComponentEvent(version 1.0)
*******************************************/
import java.awt.*;

public class ComponentEvent
{
	public static void main(String args[])
	{
		Frame fr = new Frame("Component Event Test 1.0");
		MyButton myB1 = new MyButton("Test");
		MyButton myB2 = new MyButton("Exit");

		fr.setLayout( new FlowLayout() );
		fr.add(myB1);
		fr.add(myB2);
		fr.resize(200,200);
		fr.show();
	}
}

class MyButton extends Button
{
	MyButton(String str)
	{
		super(str);
	}

	public boolean action(Event e, Object arg)
	{
		if( arg=="Test")
		{
			System.out.println("Button Test pressed.");
		}
		else
		{
			System.exit(0);
		}
		return true;
	}
}