Java实验第一天

最新推荐文章于 2024-06-26 12:51:13 发布

原创最新推荐文章于 2024-06-26 12:51:13 发布 · 651 阅读

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本文介绍了一个使用Java编程实现的猜猜看游戏，通过随机数生成功能，程序能够从指定目录中随机选取三张图片进行展示。文章详细阐述了如何利用Java API，如JFileChooser和ImageIcon来实现这一功能，并提供了代码示例。

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这个星期的任务是做一个JAVA猜猜看游戏

目前正在研究阶段，还不是很有头绪，先把随机数以及java链接数据库弄懂先吧。

这天我没考虑太多的问题，就在老师给的源代码上加点盐加点醋，很粗糙的把图片显示成三张

首先，要运用到随机数，定义三个不同的随机数，分别把他们投射到Image上，再把Image投射到相应的显示图片的标签上

然后，还是看代码吧。。比较不会说，也不知道怎么解释，唉，其实我也看不懂的。多百度吧。

下面是随机显示三张图片的代码

import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JTextField;
import javax.swing.JLabel;
import java.awt.Color;
import java.awt.SystemColor;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import java.util.Random;
public class testtest extends JFrame {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    
    private JPanel contentPane;
    private JTextField tfDir;
    private JTextField tfClass;
    String strPath = "";    
    String strFileName = "";    
    
    File[] fileArray;   
    int NUM_IMG = 0;    
    int index   = 0;   
    
    
    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    Guess01 frame = new Guess01();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }
    /**
     * Create the frame.
     */
    public Guess01() {
        setTitle("                               猜猜看游戏FV0.1");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 645, 409);
        contentPane = new JPanel();
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);
        final JButton btnDir = new JButton("\u9009\u62E9\u76EE\u5F55");
        btnDir.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
            	 if(e.getSource()==btnDir){    
                     JFileChooser jfc=new JFileChooser();
                     //jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );
                     jfc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
                     jfc.showDialog(new JLabel(), "选择");
                     File file=jfc.getSelectedFile();
                     
                     if(file.isDirectory()){
                         System.out.println("文件夹:"+file.getAbsolutePath());
                         
                     }else if(file.isFile()){
                         System.out.println("文件:"+file.getAbsolutePath());
                     }
                     System.out.println(jfc.getSelectedFile().getName());
                     
                     // 把文件路径显示在文本框中
                     tfDir.setText(file.getAbsolutePath());
                     //jlbImg.setIcon(new ImageIcon(file.getAbsolutePath()));
                     
                     // 获取文件路径 与文件名
                     strPath = file.getAbsolutePath();
                     strFileName = jfc.getSelectedFile().getName();
                     
                     if(file!=null && file.isDirectory());
                         fileArray = file.listFiles();
                         NUM_IMG = fileArray.length;
                     }
                     
                 }
                
            }
        });
        btnDir.setBounds(26, 26, 93, 23);
        contentPane.add(btnDir);
        
        // 文本框，显示目录
        tfDir = new JTextField();
        tfDir.setEditable(false);
        tfDir.setBounds(125, 27, 363, 21);
        contentPane.add(tfDir);
        tfDir.setColumns(10);
        
        // 选择班级 按钮的处理程序
        JButton btnClass = new JButton("\u9009\u62E9\u73ED\u7EA7");
        btnClass.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                
            }
        });
        btnClass.setBounds(26, 59, 93, 23);
        contentPane.add(btnClass);
        
        // 文本框，显示班级文件
        tfClass = new JTextField();
        tfClass.setEditable(false);
        tfClass.setBounds(125, 60, 363, 21);
        contentPane.add(tfClass);
        tfClass.setColumns(10);
        
        // 标签，显示带猜测学生姓名
        JLabel lbGuessName = new JLabel("\u59D3\u540D");
        lbGuessName.setBounds(259, 91, 102, 23);
        contentPane.add(lbGuessName);
        
        // 标签，显示第一个学生相片
        final JLabel lblImg1 = new JLabel("\u56FE\u72471");
        lblImg1.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent arg0) {
                
            }
        });
        lblImg1.setBounds(26, 151, 183, 178);
        contentPane.add(lblImg1);
        
        // 标签，显示第二个学生相片
        final JLabel lblImg2 = new JLabel("\u56FE\u72472");
        lblImg2.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                
            }
        });
        lblImg2.setForeground(Color.BLACK);
        lblImg2.setBackground(SystemColor.inactiveCaption);
        lblImg2.setBounds(241, 155, 183, 172);
        contentPane.add(lblImg2);
        
        // 标签，显示第三个学生相片
        final JLabel lblImg3 = new JLabel("\u56FE\u72473");
        lblImg3.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                
            }
        });
        lblImg3.setBounds(434, 155, 185, 172);
        contentPane.add(lblImg3);
        
        // 再猜一次 按钮，点击则更新相应的三张图片 与 带猜测学生姓名
        final JButton btnGuessAgain = new JButton("\u518D\u731C\u4E00\u6B21");
        btnGuessAgain.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
            	if(e.getSource()==btnGuessAgain){ //如果是next按钮
            		String[] imgSrcs = {"D:/photo/1.jpg","D:/photo/2.jpg","D:/photo/3.jpg","D:/photo/4.jpg","D:/photo/5.jpg","D:/photo/6.jpg","D:/photo/7.jpg","D:/photo/8.jpg","D:/photo/9.jpg","D:/photo/10.jpg","D:/photo/11.jpg","D:/photo/12.jpg","D:/photo/13.jpg","D:/photo/14.jpg","D:/photo/15.jpg","D:/photo/16.jpg","D:/photo/17.jpg","D:/photo/18.jpg","D:/photo/19.jpg","D:/photo/20.jpg","D:/photo/21.jpg","D:/photo/22.jpg","D:/photo/23.jpg","D:/photo/24.jpg"};
            		<span style="font-family: Arial, Helvetica, sans-serif;">Random r = new Random();</span>

            		String imageSrc = imgSrcs[r.nextInt(24)];
            		String imageSrc1 = imgSrcs[r.nextInt(24)];
            		String imageSrc2 = imgSrcs[r.nextInt(24)];

            		lblImg1.setIcon(new ImageIcon(imageSrc));
            		lblImg2.setIcon(new ImageIcon(imageSrc1));
            		lblImg3.setIcon(new ImageIcon(imageSrc2));

                }       
                
            }
        });
        btnGuessAgain.setBounds(223, 337, 93, 23);
        contentPane.add(btnGuessAgain);
    }
}

运行结果如图