JavaSwing图形界面编程之JApplet（四）

package three.day.applet;

import java.awt.Container;

import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.ImageIcon;

import javax.swing.JApplet;

import javax.swing.JLabel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

public class JAppletDemo05 extends JApplet implements ActionListener

{

Container ctp = this.getContentPane();

ImageIcon icon1 = new ImageIcon("2.gif");

ImageIcon icon2 = new ImageIcon("2.gif");

JLabel lb1 = new JLabel("输入文字后按回车",icon1,JLabel.CENTER);

JLabel lb2 = new JLabel("输出结果：",icon2,JLabel.CENTER);

JTextField tf = new JTextField(10);

JTextArea ta = new JTextArea(5,10);

public void init()

{

ctp.setLayout(new FlowLayout());

ctp.add(lb1);

ctp.add(tf);

ctp.add(lb2);

//ctp.add(ta);

ctp.add(new JScrollPane(ta));

tf.addActionListener(this);

this.setSize(450, 400);

// this.setBounds(200, 50, 450,400);

ctp.setBounds(200, 50, 450,400);

}

@Override

public void actionPerformed(ActionEvent arg0) {

// TODO Auto-generated method stub

String str;

str = tf.getText();

ta.append(str+"\n");

}

}