京东生成用户账号java代码

以下是使用Java代码生成京东用户账号的示例：

import java.util.Random;

public class JDUserAccountGenerator {
    
    public static void main(String[] args) {
        String username = generateUsername();
        String password = generatePassword();
        
        System.out.println("Username: " + username);
        System.out.println("Password: " + password);
    }
    
    public static String generateUsername() {
        String prefix = "jduser";
        String suffix = "@jd.com";
        Random rand = new Random();
        int num = rand.nextInt(9999);
        String username = prefix + num + suffix;
        return username;
    }
    
    public static String generatePassword() {
        String chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
        StringBuilder sb = new StringBuilder();
        Random rand = new Random();
        for (int i = 0; i < 8; i++) {
            int index = rand.nextInt(chars.length());
            sb.append(chars.charAt(index));
        }
        String password = sb.toString();
        return password;
    }
}

该示例中，使用了Java的Random类来生成随机的账号和密码。生成的账号格式为“jduser”+4位随机数字+“@jd.com”，密码为8位随机字母数字组合。您可以根据需要对代码进行修改和调整。