使用Java 随机生成账号密码

以下是Java代码实现随机生成账号密码：

import java.util.Random;

public class AccountGenerator {
    public static void main(String[] args) {
        String account = generateRandomAccount();
        String password = generateRandomPassword();
        System.out.println("随机生成的账号: " + account);
        System.out.println("随机生成的密码: " + password);
    }

    public static String generateRandomAccount() {
        Random random = new Random();
        String account = "";
        for (int i = 0; i < 8; i++) {
            account += (char) (random.nextInt(26) + 'a');
        }
        return account;
    }

    public static String generateRandomPassword() {
        Random random = new Random();
        String password = "";
        for (int i = 0; i < 8; i++) {
            int type = random.nextInt(3);
            if (type == 0) {
                password += (char) (random.nextInt(26) + 'a');
            } else if (type == 1) {
                password += (char) (random.nextInt(26) + 'A');
            } else {
                password += (char) (random.nextInt(10) + '0');
            }
        }
        return password;
    }
}

该程序使用了Java中的Random类来生成随机数，生成的账号由8个小写字母组成，密码由8个字符组成，包括小写字母、大写字母和数字。