import java.awt.*;
import java.awt.event.* ;

public class TestButton{
    public static void main(String args[ ]){
		Frame f = new Frame("Test");
		 FlowLayout bl=new FlowLayout();
		 f.setLayout(bl);
        Label label=new Label("內(nèi)容顯示");
		f.add(label,"Center");
		Button b = new Button("Press Me!");
		b.addActionListener(new ButtonHandler( )); //注冊點(diǎn)擊鼠標(biāo)事件監(jiān)聽器。
		f.add(b,"South");//BorderLayout.SOUTH
		f.setSize(200,100);
		f.setVisible(true) ;
		f.setBackground(Color.yellow);
	}
 }

//定義ActionEvent監(jiān)聽器類
class ButtonHandler implements ActionListener{

    public void actionPerformed(ActionEvent e){
		System.out.println("Action occurred");
		System.out.println("Button's label is:"+
		                       e.getActionCommand());
		}
 	}