如何获取字符串数组中字符的索引位置

Question

如何获取数组 chars 中字符 c 的索引位置？

public static final String[] chars = new String[]{"A","B","C","D","E","F"};
String c = "E";

// the answer is 4.

Answer 1

如果你的数组是排序的，你可以使用

Arrays.binarySearch()

int answer = Arrays.binarySearch(chars, c);
return answer;

如前所述。否则使用 for 循环。

for (int i=0; i<chars.length; ++i) {
   if (s[i].equals(c)) {
        return i;
   }
}

Answer 2

这是解决方案，希望对您有所帮助

    String[] src = new String[]{"A","B","C","D","E","F"};
    int biggerWher = Arrays.asList(src).indexOf("E");
    System.out.println(biggerWher);

How to get an index position of a char in the String array