如何获取String数组中char的索引位置

Question

如何获得char c在数组chars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

如果数组已排序，则可以使用

Arrays.binarySearch（）

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

如前所述。 否则，请使用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);