写了一个GUI版程序员必背单词小软件 - 黑马程序员技术交流社区

package cn;public class Run { public static void main(String[] args) {
Window win = new Window();
}}
<img border="0" alt="" src="static/image/hrline/line4.png">
package cn;import java.io.*;
public class FileOperate {
BufferedReader br = null;
String line = null;
public FileOperate()
{
try
{
br = new BufferedReader(new FileReader("words.txt"));
}
catch (IOException e)
{
System.out.println("请检查words文件！");
}
}
public String getLine()
{
try {
line = br.readLine().trim();
} catch (IOException e) {
e.printStackTrace();
}finally{
return line;
}
}
public void close()
{
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
<img border="0" alt="" src="static/image/hrline/line9.png">
package cn;
/**
* GUI版程序员背单词
* @author Bluce
* @version 1.0
*/
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;public class Window extends JFrame implements ActionListener{
//定义组件
private JButton jb1;
private JButton jb2;
private JButton jb3;
private JPanel jp;
private JTextArea jta;
int i = 0;
FileOperate fo;
public Window()
{
//创建组件
jb1 = new JButton("开始学习");
jb2 = new JButton("保存退出");
jb3 = new JButton("记住了");
jp = new JPanel(new GridLayout(1,3,7,5));
jta = new JTextArea(3,18);
//设置文本域
jta.setEditable(false);//不可修改复制
jta.setLineWrap(true); //激活换行功能
jta.setWrapStyleWord(true);
jta.setFont(new Font("Default",Font.PLAIN,20));//设置文字字体、样式、大小
//设置Layout布局
setLayout(new FlowLayout(FlowLayout.CENTER,10,47));
//添加组件
add(jta);
add(jp);
jp.add(jb1);
jp.add(jb2);
jp.add(jb3);
//注册监听
jb1.addActionListener(this);
jb2.addActionListener(this);
jb3.addActionListener(this);
//指定Action命令
jb1.setActionCommand("开始学习");
jb2.setActionCommand("保存退出");
jb3.setActionCommand("记住了");
//设置窗体
setTitle("程序员必背单词");
setSize(340, 250);
setLocationRelativeTo(null);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
//实例化FileOperate类
fo = new FileOperate();
}
//覆写事件监听方法
public void actionPerformed(ActionEvent e) {
if(e.getActionCommand().equals("开始学习")){
jta.setText(fo.getLine());
i++;
jb1.setEnabled(false);//禁用该按钮，保证"开始学习"按钮只能按一次
}else if(e.getActionCommand().equals("记住了")){
//判断是否已经点击开始学习
if(i==1)
jta.setText(fo.getLine());
}else if(e.getActionCommand().equals("保存退出")){
fo.close();
System.exit(0);
}
}
}

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package cn;
import java.io.*;
public class FileOperate {
BufferedReader br = null;
String line = null;
public FileOperate()
{
try
{
br = new BufferedReader(new FileReader("words.txt"));
}
catch (IOException e)
{
System.out.println("请检查words文件！");
}
}
public String getLine()
{
try {
line = br.readLine().trim();
} catch (IOException e) {
e.printStackTrace();
}finally{
return line;
}
}
public void close()
{
try {
br.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

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package cn;
/**
* GUI版程序员背单词
* @author Bluce
* @version 1.0
*/
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class Window extends JFrame implements ActionListener{
//定义组件
private JButton jb1;
private JButton jb2;
private JButton jb3;
private JPanel jp;
private JTextArea jta;
int i = 0;
FileOperate fo;
public Window()
{
//创建组件
jb1 = new JButton("开始学习");
jb2 = new JButton("保存退出");
jb3 = new JButton("记住了");
jp = new JPanel(new GridLayout(1,3,7,5));
jta = new JTextArea(3,18);
//设置文本域
jta.setEditable(false);//不可修改复制
jta.setLineWrap(true); //激活换行功能
jta.setWrapStyleWord(true);
jta.setFont(new Font("Default",Font.PLAIN,20));//设置文字字体、样式、大小
//设置Layout布局
setLayout(new FlowLayout(FlowLayout.CENTER,10,47));
//添加组件
add(jta);
add(jp);
jp.add(jb1);
jp.add(jb2);
jp.add(jb3);
//注册监听
jb1.addActionListener(this);
jb2.addActionListener(this);
jb3.addActionListener(this);
//指定Action命令
jb1.setActionCommand("开始学习");
jb2.setActionCommand("保存退出");
jb3.setActionCommand("记住了");
//设置窗体
setTitle("程序员必背单词");
setSize(340, 250);
setLocationRelativeTo(null);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
//实例化FileOperate类
fo = new FileOperate();
}
//覆写事件监听方法
public void actionPerformed(ActionEvent e) {
if(e.getActionCommand().equals("开始学习")){
jta.setText(fo.getLine());
i++;
jb1.setEnabled(false);//禁用该按钮，保证"开始学习"按钮只能按一次
}else if(e.getActionCommand().equals("记住了")){
//判断是否已经点击开始学习
if(i==1)
jta.setText(fo.getLine());
}else if(e.getActionCommand().equals("保存退出")){
fo.close();
System.exit(0);
}
}
}

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package cn;
public class Run {
public static void main(String[] args) {
Window win = new Window();
}
}

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