Java 实训 编写一个窗体程序模拟单词拼写

实训要求:
窗口中有一个TextFie1d对象和一个按钮对象，将这两个对象添加到
一个面板中，然后将该面板添加到窗口的北面。
用户在TextField 对象中输入一个英文单词，然后回车或单击按钮，
程序将创建若干个标签，其个数刚好等于英文单词所包含的字母的标签，
而且每个标签上的名字刚好是英文单词中的一个字母。要求将这些标签按
行添加到一个面板中，然后将该面板添加到窗口的中心。
用户用鼠标单击一个标签后，通过按下键盘上的“一”“一”键交换相
邻标签上的字母，是的这些标签上字母的排列顺序和英文单词中字母的顺
序相同。
参考结果:
在初始界面中输入英文单词

代码：

import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Game extends JFrame implements FocusListener, KeyListener {TextField tf;JPanel pane1, pane2, pane3;JLabel lab1, lab2, lab3;JButton bu, temp;JButton[] bx = new JButton[10];String str, st;int n = 0;char c;char[] s;Game() {tf = new TextField(10);lab1 = new JLabel("请输入一个英文单词");lab2 = new JLabel("用鼠标单击字母，按左右箭头交换字母，将其排列成所输入的单词");bu = new JButton("确定");bu.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {change1(e);}});pane1 = new JPanel();pane1.add(lab1);pane1.add(tf);pane1.add(bu);add(pane1, BorderLayout.NORTH);pane2 = new JPanel();pane2.add(lab2);add(pane2, BorderLayout.SOUTH);}public void change1(ActionEvent e) {str = tf.getText();n = str.length();if (e.getActionCommand().equals("确定")) {pane3 = new JPanel();// 打乱顺序for (int i = 1; i < n; i++) {int[] p = new int[n];for (i = 0; i < n; i++)p[i] = i + 1;for (i = 0; i < n; i++) {int r = (int) (Math.random() * n);int tmp = p[r];p[r] = p[i];p[i] = tmp;}Font font = new Font(str, Font.PLAIN, 46);for (i = 0; i < n; i++) {char c = str.charAt(p[i] - 1);// 取随机字符bx[i] = new JButton("" + c);bx[i].setPreferredSize(new Dimension(80, 80));// 设置按钮大小bx[i].setFont(font);// 设置字体大小bx[i].setForeground(Color.black);// 设置字体颜色bx[i].addFocusListener(this);bx[i].addKeyListener(this);pane3.add(bx[i]);add(pane3, BorderLayout.CENTER);}}tf.setText(null);setVisible(true);}}public static void main(String[] args) {Game game = new Game();game.setBounds(300, 200, 900, 250);game.setResizable(false);game.setVisible(true);game.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}@Override// 焦点监听public void focusGained(FocusEvent e) {for (int i = 0; i < str.length(); i++) {if (bx[i] == (JButton) e.getSource()) {bx[i].setForeground(Color.red);}}}@Overridepublic void focusLost(FocusEvent e) {for (int i = 0; i < str.length(); i++) {if (bx[i] == (JButton) e.getSource()) {bx[i].setForeground(Color.black);}}}public void keyPressed(KeyEvent e) {for (int i = 0; i < str.length(); i++) {if (bx[i] == (JButton) e.getSource()) {if (e.getKeyCode() == KeyEvent.VK_LEFT) {go(i, "left");char[] str2 = new char[n];for (int k = 0; k < n; k++) {str2[k] = bx[k].getText().charAt(0);}String s1 = new String(str2);if (s1.equals(str)) {lab2.setText("恭喜你，你成功了！");for (int p = 0; p < n; p++) {bx[p].setForeground(Color.green);}}} else if (e.getKeyCode() == KeyEvent.VK_RIGHT) {go(i, "right");char[] str2 = new char[n];for (int k = 0; k < n; k++) {str2[k] = bx[k].getText().charAt(0);}String s1 = new String(str2);if (s1.equals(str)) {lab2.setText("恭喜你，你成功了！");for (int p = 0; p < n; p++) {bx[p].setForeground(Color.green);}}}}}}void go(int i, String st1) {if (st1.equals("left") && i >= 1) {String temp = bx[i].getText();String temp1 = bx[i - 1].getText();bx[i].setText(temp1);bx[i - 1].setText(temp);} else if (st1.equals("right") && i <= n - 2) {String temp = bx[i].getText();String temp1 = bx[i + 1].getText();bx[i].setText(temp1);bx[i + 1].setText(temp);}}@Overridepublic void keyTyped(KeyEvent e) {// TODO Auto-generated method stub}@Overridepublic void keyReleased(KeyEvent e) {// TODO Auto-generated method stub}}

运行结果：