java - 从java中的字符串数组中选择一个随机项目

<分区>

我有一些包含字符串的数组，我想从每个数组中随机选择一个项目。我怎样才能做到这一点？

这是我的数组:

static final String[] conjunction = {"and", "or", "but", "because"};

static final String[] proper_noun = {"Fred", "Jane", "Richard Nixon", "Miss America"};

static final String[] common_noun = {"man", "woman", "fish", "elephant", "unicorn"};

static final String[] determiner = {"a", "the", "every", "some"};

static final String[] adjective = {"big", "tiny", "pretty", "bald"};

static final String[] intransitive_verb = {"runs", "jumps", "talks", "sleeps"};

static final String[] transitive_verb = {"loves", "hates", "sees", "knows", "looks for", "finds"};

最佳答案

使用 Random.nextInt(int)方法:

final String[] proper_noun = {"Fred", "Jane", "Richard Nixon", "Miss America"};
Random random = new Random();
int index = random.nextInt(proper_noun.length);
System.out.println(proper_noun[index]);

此代码并不完全安全:四分之一的时间它会选择 Richard Nixon。

引用文档Random.nextInt(int):