主题：程序代码——带有计数功能的猜数字游戏

import javax.swing.JOptionPane;

public class Exec {
        public static void main(String args[]) {
                int rand = (int) (Math.random() * 100) + 1;

                int count = 0;

                while (true) {
                        String str = JOptionPane.showInputDialog("请猜数");
                        int num = Integer.parseInt(str);
                        count++;
                        if (num > rand) {
                                JOptionPane.showMessageDialog(null, "大了(已经猜了" + count + "次)",
                                                "游戏", javax.swing.JOptionPane.OK_OPTION,
                                                new javax.swing.ImageIcon("icon.gif"));
                        }

                        if (num < rand) {
                                JOptionPane.showMessageDialog(null, "小了(已经猜了" + count + "次)",
                                                "游戏", javax.swing.JOptionPane.OK_OPTION,
                                                new javax.swing.ImageIcon("icon.gif"));
                        }

                        if (num == rand) {
                                JOptionPane.showMessageDialog(null, "成功！次数：" + count, "游戏",
                                                javax.swing.JOptionPane.OK_OPTION,
                                                new javax.swing.ImageIcon("icon.gif"));
                                break;
                        }

                }
        }
}

 

注意，本程序使用到了图片，请注意项目截图中图片文件的位置

 

此主题相关图片如下：新建 bmp 图像.jpg

首先选择图片文件，复制之

 

然后在Eclipse中选中带有项目名称的节点，直接右击选择“粘贴”，此时的项目文件状态应该如图所示