java - 错误:找不到符号变量。指“.length”

我试图使storyList数组中的每个“ ADJEKTIVER”字符串都变成我的adjectivesList数组中的随机字符串。当我尝试编译时，我只会得到错误：找不到符号变量。使用.length作为变量/属性。一直在寻找解决方案

    ArrayList<String> storyList = new ArrayList<String>();
    storyList = reader.getWordsInFile(storyFilename);

    ArrayList<String> adjectivesList = new ArrayList<String>();
    adjectivesList = reader.getWordsInFile(adjectivesFilename);

    for (int index =0; index < storyList.length; index++)
    {
        storyList[index] = storyList[index].replace("ADJEKTIV", adjectivesList[random.nextInt(adjectivesList)]);
    }

    writer.write(adjectivesList, outputFilename);

最佳答案

使用storyList.size()方法而不是storyList.length

for (int index =0; index < storyList.size(); index++)