开始:Applet未初始化 [英] Start: Applet not initialized

问题描述

我没有任何错误，只有关于课堂的警告.它坚持不初始化，但我不知道出了什么问题.有人可以帮我吗?

I have no errors, only a warning on the class. It insists on not initializing though and I have no idea what''s wrong. Can someone please help me?

package com.saizen;

import java.applet.Applet;
import java.awt.Button;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class T3xt extends Applet implements ActionListener {

	TextField text1;
	Button button1, button2;

	public void init(){
		add(text1);
		add(button1);
		add(button2);
		text1 = new TextField(20);
		button1 = new Button("first");
		button2 = new Button("second");
		button1.addActionListener(this);
		button2.addActionListener(this);
	}

	public void actionPerformed(ActionEvent e) {
		if (e.getSource() == button1){
			text1.setText("Hello!");
		}
		if (e.getSource() == button2){
			text1.setText("How are you today?");
		}
	}


}

推荐答案

只是交换顺序

just exchange sequence

add(text1);
        
        text1 = new TextField(20);
        button1 = new Button("first");
        button2 = new Button("second");
        add(text1);
		add(button1);
		add(button2);
		text1 = new TextField(20);
		button1 = new Button("first");
		button2 = new Button("second");

让我知道会发生什么.

let me know what happen.

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