这篇文章主要讲解了java实现简单猜数字的方法，内容清晰明了，对此有兴趣的小伙伴可以学习一下，相信大家阅读完之后会有帮助。

代码不多说，图片自加，实现功能有数字比大小，菜单开始，帮助，退出，关于等，运行结果如图：

代码：

import java.awt.BorderLayout;import java.awt.Color;import java.awt.FlowLayout;import java.awt.Font;import java.awt.GridLayout;import java.awt.Image;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.Random;import javax.swing.ImageIcon;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JMenu;import javax.swing.JMenuBar;import javax.swing.JMenuItem;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JTextField;public class Bingo extends JFrame implements ActionListener {JFrame frame;JMenuBar topBbr;JMenu menuQ;JMenu menuF;JMenuItem start = new JMenuItem("开始(n)");JMenuItem out = new JMenuItem("不玩了(e)");JMenuItem help = new JMenuItem("帮助(h)");JMenuItem about = new JMenuItem("关于(a)");JPanel panelMain = new JPanel(new BorderLayout());JPanel panelNext = new JPanel(new BorderLayout());JButton btnStart;JPanel jp1, jp2, jp3, jp4;public static void main(String[] args) {new Bingo();}public Bingo() {frame = new JFrame();topBbr = new JMenuBar();frame.setTitle("王氏猜数字游戏1.0版");frame.setSize(400, 320);frame.setLocation(450, 240);frame.setLayout(getLayout());// frame.setLayout(new FlowLayout());menuQ = new JMenu("游戏(q)");menuQ.add(start);menuQ.add(out);menuF = new JMenu("帮助(f)");ImageIcon icon = new ImageIcon("imgs/logo.jpg");btnStart = new JButton(icon);JButton caiButton = new JButton("猜一猜");JButton congButton = new JButton("重新来");JTextField text = new JTextField(6);JLabel mes = new JLabel(" 请你输入一个2位数");menuF.add(help);menuF.add(about);topBbr.add(menuQ);topBbr.add(menuF);frame.setJMenuBar(topBbr);panelMain.add("Center", btnStart);frame.add(panelMain);frame.setResizable(false);frame.setVisible(true);// Image im = new ImageIcon("imgs/logo.jpg").getImage();// im = im.getScaledInstance(-1, 90, DO_NOTHING_ON_CLOSE);// setIconImage(im);start.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {panelMain.setVisible(false);start.setEnabled(false);frame.add(panelNext);jp1 = new JPanel();jp2 = new JPanel(new GridLayout(2, 1));jp3 = new JPanel();JLabel top = new JLabel("&#63;&#63;");// top.setBackground(new Color(100, 100, 0, 100));// top.setOpaque(true);JLabel jb = new JLabel(" ");JLabel jb2 = new JLabel(" ");top.setFont(new Font("隶体", Font.BOLD, 100));top.setForeground(Color.yellow);jp1.add(top);jp2.add(mes);jp2.add(text);jp3.add(caiButton);jp3.add(congButton);panelNext.add("North", jp1);panelNext.add("Center", jp2);panelNext.add("West", jb);panelNext.add("East", jb2);panelNext.add("South", jp3);panelNext.setVisible(true);}});// 开始监听1btnStart.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {start.setEnabled(false);panelMain.setVisible(false);frame.add(panelNext);jp1 = new JPanel();jp2 = new JPanel(new GridLayout(2, 1));jp3 = new JPanel();JLabel top = new JLabel("&#63;&#63;");// top.setBackground(new Color(100, 100, 0, 100));// top.setOpaque(true);JLabel jb = new JLabel(" ");JLabel jb2 = new JLabel(" ");top.setFont(new Font("隶体", Font.BOLD, 100));top.setForeground(Color.yellow);jp1.add(top);jp2.add(mes);jp2.add(text);jp3.add(caiButton);jp3.add(congButton);panelNext.add("North", jp1);panelNext.add("Center", jp2);panelNext.add("West", jb);panelNext.add("East", jb2);panelNext.add("South", jp3);panelNext.setVisible(true);}});// 退出监听out.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {frame.setVisible(false);}});// 帮助监听help.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {JOptionPane.showMessageDialog(null, "请按开始进行游戏！就是猜数字而已，就不多说了！","帮助", JOptionPane.PLAIN_MESSAGE);}});// 关于监听about.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {JOptionPane.showMessageDialog(frame, "谢谢尝脸试玩！", "3Q",JOptionPane.WARNING_MESSAGE);}});// 开始监听2caiButton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {Random x = new Random();int y = x.nextInt(100);try {int num = Integer.parseInt(text.getText());if (num > y) {mes.setText(" 你输入的" + num + "大了哦！");if (num > 99) {mes.setText(" 请输入小于99的数字!");}}else if(num == y){mes.setText(" 恭喜你猜对了哦！");} else{mes.setText(" 你输入的" + num + "小了哦！");if (num < 1) {mes.setText(" 请输入大于0的数字!");}} } catch (Exception e2) {mes.setText(" 请输入0-99的数字!");}}});// 重置监听congButton.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {text.setText("");}});}@Overridepublic void actionPerformed(ActionEvent e) {}}

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