Question

import java.awt.*; import java.awt.event.*; public class MyFrame extends Frame { public MyFrame() {

import java.awt.*;
import java.awt.event.*;
public class MyFrame extends Frame {
public MyFrame() {
Button btn = new Button("Exit");
setLayout(Button); //1
add(btn);
btn.addActionListener(this); //2
setSize(300,300);
setVisible(true); //3
}
public static void main(String[] args) {
MyFrame fr =new MyFrame(); //4
}
class MyHandler extends ActionListener { //5
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
}
}
的错误可以找出来吗

Answer 1

public static void main(String[] args)错误；
应为 public static void main(String args[])

Answer 2

setLayout(Button); //1 ===>setLayout();

Answer 3

电脑程序么