技術標籤：筆記

點選元件按鈕，作出反應

package two;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class HH extends JFrame{
     private JButton button1=new JButton("不許打我！"
 
);
     public HH()
     {
         setTitle("傳說中的豆豆");
         setSize(250,150);
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//視窗預設關閉
         setLocationRelativeTo(null);
         setLayout(new FlowLayout());//設定佈局管理器
        //新增事件
         button1.addActionListener(new ActionListener
 
() {
         public void actionPerformed(ActionEvent event)
         {
             JOptionPane.showMessageDialog(null,"你打我了，我要咬你！");
         }
        });
        add(button1);
        
    }
    public static void main(String[] args)
        {
        HH A=new HH();
        A.setVisible
 
(true);
    }
}