java - 是否可以将数组字符串与普通字符串进行比较？

Question

我正在尝试将一个(字符串)数组与来自输入的常规字符串进行比较。这可能吗？我有我的测试代码，它主要是说

incomparable types java.lang.string and java.lang.string[]

这是我的测试代码:

 String[] yes = new String[5];
yes[0] = "yes";
yes[1] = "yeah";
yes[2] = "sure";
yes[3] = "yupp";
yes[4] = "okay";
System.out.println("Input");
String input = scan.next();
if ((input).equalsIgnoreCase(yes)) {
  System.out.println("compared!");
}

Answer 1

最有效的解决方案是创建一组字符串，然后调用 set.contains 以查看输入字符串是否存在于该集合中。示例代码:

 HashSet<String> stringSet = new HashSet<String>();
    //All string are already lower case so no need of toLowerCase() here
    stringSet.add("yes");
    stringSet.add("yeah");
    stringSet.add("sure");
    stringSet.add("yupp");
    stringSet.add("okay");
    System.out.println("Input");
    String input = scan.next();
    if (stringSet.contains(input.toLowerCase())) {
      System.out.println("compared!");
    }