实验要求：
华容道是大家很熟悉的一个传统智力游戏。编写GUI程序，用户通过键盘和鼠标事件来实现曹操，关羽等人物的移动。
代码：
MainClass.java
public class MainClass {public static void main(String[] args) {new Hua_Rong_Road();}}Hua_Rong_Road.java import java.awt.Color;import java.awt.Rectangle;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import javax.swing.JButton;import javax.swing.JFrame;// ,,public class Hua_Rong_Road extends JFrame implements ActionListener,MouseListener, KeyListener {Person person[] = new Person[10];JButton left, right, above, below;JButton restart = new JButton("重新开始");public Hua_Rong_Road() {init();setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);setBounds(100, 100, 320, 500);setVisible(true);validate();}public void init() {setLayout(null);add(restart);restart.setBounds(100, 320, 120, 35);restart.addActionListener(this);String name[] = { "曹操", "关羽", "张", "刘", "周", "黄", "兵", "兵", "兵", "兵" };for (int k = 0; k < name.length; k++) {person[k] = new Person(k, name[k]);person[k].addMouseListener(this);person[k].addKeyListener(this);add(person[k]);}person[0].setBounds(104, 54, 100, 100);person[1].setBounds(104, 154, 100, 50);person[2].setBounds(54, 154, 50, 100);person[3].setBounds(204, 154, 50, 100);person[4].setBounds(54, 54, 50, 100);person[5].setBounds(204, 54, 50, 100);person[6].setBounds(54, 254, 50, 50);person[7].setBounds(204, 254, 50, 50);person[8].setBounds(104, 204, 50, 50);person[9].setBounds(154, 204, 50, 50);person[9].requestFocus();left = new JButton();// 四个边界right = new JButton();above = new JButton();below = new JButton();add(left);add(right);add(above);add(below);left.setBounds(49, 49, 5, 260);right.setBounds(254, 49, 5, 260);above.setBounds(49, 49, 210, 5);below.setBounds(49, 304, 210, 5);validate();}@Overridepublic void keyPressed(KeyEvent e) {Person man = (Person) e.getSource();if (e.getKeyCode() == KeyEvent.VK_DOWN)go(man, below);if (e.getKeyCode() == KeyEvent.VK_UP)go(man, above);if (e.getKeyCode() == KeyEvent.VK_LEFT)go(man, left);if (e.getKeyCode() == KeyEvent.VK_RIGHT)go(man, right);}public void keyReleased(KeyEvent e) {}public void keyTyped(KeyEvent e) {}public void mousePressed(MouseEvent e) {Person man = (Person) e.getSource();int x = -1, y = -1;x = e.getX();y = e.getY();int w = man.getBounds().width;int h = man.getBounds().height;if (y > h / 2)go(man, below);if (y < h / 2)go(man, above);if (x < w / 2)go(man, left);if (x > w / 2)go(man, right);}public void mouseClicked(MouseEvent e) {}public void mouseEntered(MouseEvent e) {}public void mouseExited(MouseEvent e) {}public void mouseReleased(MouseEvent e) {}public void go(Person man, JButton direction) {boolean move = true;Rectangle manRect = man.getBounds();int x = man.getBounds().x;int y = man.getBounds().y;if (direction == below)y = y + 50;else if (direction == above)y = y - 50;else if (direction == left)x = x - 50;else if (direction == right)x = x + 50;manRect.setLocation(x, y);Rectangle dirctionRect = direction.getBounds();for (int k = 0; k < 10; k++) {Rectangle personRect = person[k].getBounds();if ((manRect.intersects(personRect)) && (man.number != k))move = false;}if (manRect.intersects(dirctionRect))move = false;if (move == true)man.setLocation(x, y);}public void actionPerformed(ActionEvent e) {dispose();new Hua_Rong_Road();}}Person.java import java.awt.Color;import java.awt.Font;import java.awt.event.FocusEvent;import java.awt.event.FocusListener;import javax.swing.JButton;public class Person extends JButton implements FocusListener {int number;Color c = new Color(255, 245, 170);Font font = new Font("宋体", Font.BOLD, 12);Person(int number, String s) {super(s);setBackground(c);setFont(font);this.number = number;c = getBackground();addFocusListener(this);}@Overridepublic void focusGained(FocusEvent arg0) {// TODO Auto-generated method stubsetBackground(Color.red);}@Overridepublic void focusLost(FocusEvent arg0) {// TODO Auto-generated method stubsetBackground(c);}}运行结果：
