0

例如:

if(!UserInputSplit[i].equalsIgnoreCase("the" || "an")

产生一个语法错误。这有什么办法?

4

2 回答 2

5

您需要明确地与每个字符串进行比较。

例子:

if(!UserInputSplit[i].equalsIgnoreCase("the") || !UserInputSplit[i].equalsIgnoreCase("an"))
于 2013-02-10T04:34:49.127 回答
1

使用一系列 || 如果您有一小部分要比较的项目,那很好,如较早的答案中所述:

if (!UserInputSplit[i].equalsIgnoreCase("the") || !!UserInputSplit[i].equalsIgnoreCase("the")) {
  // Do something when neither are equal to the array element
}

但是,如果您有比一小组项目更大的东西,您可以考虑改用地图或一组:

// Key = animal, Value = my thoughts on said animal
Map<String, String> animals = new HashMap<String, String>();
animals.put("dog", "Fun to pet!");
animals.put("cat", "I fear for my life.");
animals.put("turtle", "I find them condescending.");

String[] userInputSplit = "I have one dog, a cat, and this turtle has a monocle.".split(" "); 

for (String word : UserInputSplit) {
  word = word.toLowerCase(); // Some words may be upper case. This only works if the cases match.
  String thought = animals.get(word);
  if (thought != null) {
    System.out.println(word + ": " + thought);
  }
}

如果您采用这种方法,您当然希望将其放入自己的类中,或者以某种方式将其加载一次,因为您不希望每次都设置一个巨大的地图。

于 2013-02-10T04:59:31.223 回答