Question

在myeclipse中OK.addActionListener(new ActionListener()总显示错误

这是源代码
import java.awt.*;
import javax.swing.*;
public class login extends JFrame {
static final int WIDTH=300;
static final int HEIGHT=200;

public login(){
setTitle("欢迎使用ZDNF电子商务系统");
setSize(WIDTH,HEIGHT);
Container con=getContentPane();
JLabel label1=new JLabel("姓名：");
JTextField textField1=new JTextField(10);
textField1.setMaximumSize(textField1.getPreferredSize());
Box hbox1=Box.createHorizontalBox();
hbox1.add(label1);
hbox1.add(Box.createHorizontalStrut(20));
hbox1.add(textField1);
JLabel label2=new JLabel("密码：");
JPasswordField textField2=new JPasswordField(10);
textField2.setMaximumSize(textField2.getPreferredSize());
Box hbox2=Box.createHorizontalBox();
hbox2.add(label2);
hbox2.add(Box.createHorizontalStrut(20));
hbox2.add(textField2);
JButton OK=new JButton("登录");
JButton Cancel=new JButton("忘记密码？");
JButton resistered=new JButton("新用户注册");
Box hbox3=Box.createHorizontalBox();
hbox3.add(OK);
hbox3.add(Cancel);
hbox3.add(resistered);
OK.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent Event){
userresisteredframe resisteredframe=new userresisteredframe();
}
});
Box vbox=Box.createVerticalBox();
vbox.add(hbox1);
vbox.add(hbox2);
vbox.add(Box.createVerticalGlue());
vbox.add(hbox3);
con.add(vbox,BorderLayout.CENTER);
}

public static void main(String[] args){
Toolkit kit=Toolkit.getDefaultToolkit();
Dimension screenSize=kit.getScreenSize();
int width=screenSize.width;
int height=screenSize.height;
int x=(width-WIDTH)/2;
int y=(height-HEIGHT)/2;
login framel=new login();
framel.setLocation(x,y);
framel.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
framel.show();
}
}

Answer 1

我觉得你少导了一个包吧
在前面加上

import java.awt.event.*;

你用到ActionEvent并且
new ActionListener()

祝你好运