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

Question

How to get an index position of a char c in the array chars?.

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

// the answer is 4.

If your array is sorted, you can use Arrays.binarySearch(). — Florent Bayle
– Florent Bayle, Commented Mar 2, 2015 at 11:12
@Florent Bayle: Yes, it's sorted. Could you please post an example? — Klausos Klausos
– Klausos Klausos, Commented Mar 2, 2015 at 11:15

Dia · Accepted Answer · 2015-03-02 11:20:07Z

4

If your array is sorted, you can use

Arrays.binarySearch()

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

as was mentioned. Otherwise use a for loop.

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

answered Mar 2, 2015 at 11:17

Dia

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1 Comment

looks like a solution

user4571931 · Accepted Answer · 2015-03-02 11:20:08Z

3

Here is the solution, hope this helps you

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

answered Mar 2, 2015 at 11:20

user4571931