java-随机生成用户名

可以使用以下代码生成随机用户名：

import java.util.Random;

public class RandomUsernameGenerator {
    private static final String[] ADJECTIVES = {"happy", "funny", "silly", "crazy", "angry", "brave", "shy", "loud", "quiet", "smart"};
    private static final String[] NOUNS = {"cat", "dog", "bird", "lion", "tiger", "elephant", "snake", "monkey", "zebra", "giraffe"};

    public static String generate() {
        Random random = new Random();
        String adjective = ADJECTIVES[random.nextInt(ADJECTIVES.length)];
        String noun = NOUNS[random.nextInt(NOUNS.length)];
        int number = random.nextInt(100);
        return adjective + noun + number;
    }
}

这段代码会从 `ADJECTIVES` 和 `NOUNS` 数组中随机选择一个形容词和一个名词，然后再随机生成一个数字，最后将它们组合起来成为一个用户名。你可以根据需要修改 `ADJECTIVES` 和 `NOUNS` 数组来自定义可选的形容词和名词。