package pack2;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
public class num_2v extends JFrame implements ActionListener{
JButton jb;
public num_2v(){
jb = new JButton("确定");
jb.addActionListener(this);
this.add(jb);
this.setSize(300,300);
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
}
public static void main(String[] args) {
new num_2v();
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO 自动生成的方法存根
System.out.println("点击了按钮");
}
}