java - 从列表中调用随机值元素

我希望能够从字符串的list或array中调用随机字符串。我想要这样做的原因是能够编造一个故事，或者每次都不同的一段文字。到目前为止，我完成的方式是：

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

class Story {

    Random myRandom = new Random();
    int index = myRandom.nextInt(10);

    public static void main(String[] args) {
        List<String> adjective = new ArrayList<String>();
        adjective.add("efficacious");
        adjective.add("propitious");
        adjective.add("trenchant");
        adjective.add("arcadian");
        adjective.add("effulgent");

        Story obj = new Story();

        System.out.println("This is going to be one " + obj.getRandAdjective(adjective) + " story.");
    }

    public String getRandAdjective(List<String> adjective) {
        int index = myRandom.nextInt(adjective.size());
        return adjective.get(index);
    }
}

牢记，有什么更有效的方法来构造此结构
还会添加lists吗？
是否可以将代码的结构缩短到
obj.getRandAdjective(adjective)版本写在
故事（主要是为了提高可读性）？

最佳答案

这是一种概括您对语音各个部分所做的一种方法。我将所有类放在一起以使其易于粘贴。您应该将这些单独的公共课程设为公开。

package com.ggl.testing;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public enum PartsOfSpeech {
    ADJECTIVE, ADVERB, ARTICLE, CONJUNCTION, INTERJECTION, NOUN,
    PREPOSITION, PRONOUN, VERB
}

class Word {

    private final PartsOfSpeech partOfSpeech;

    private final String word;

    public Word(PartsOfSpeech partOfSpeech, String word) {
        this.partOfSpeech = partOfSpeech;
        this.word = word;
    }

    public PartsOfSpeech getPartOfSpeech() {
        return partOfSpeech;
    }

    public String getWord() {
        return word;
    }

}

class Sentence {

    private List<Word> words;

    private Random random;

    public Sentence() {
        this.words = createWordList();
        this.random = new Random();
    }

    private List<Word> createWordList() {
        List<Word> words = new ArrayList<Word>();
        words.add(new Word(PartsOfSpeech.VERB, "run"));
        // add the rest of the words here

        return words;
    }

    public Word getWord(PartsOfSpeech partsOfSpeech) {
        List<Word> subList = getSubList(partsOfSpeech);
        int index = random.nextInt(subList.size());
        return subList.get(index);
    }

    private List<Word> getSubList(PartsOfSpeech partsOfSpeech) {
        List<Word> subList = new ArrayList<Word>();
        for (Word word : words) {
            if (word.getPartOfSpeech() == partsOfSpeech) {
                subList.add(word);
            }
        }

        return subList;
    }

}