Question

How to implement indexOf function on int array in Java

Answer 1

public class Program {
    public static void main(String[] args) {
        int[] arr = {6, 7, 8, 4, 2, 1, 1, 7, 5, 8, 9, 5, 3};

        System.out.println(indexOf(arr, 8));
    }

    public static int indexOf(int[] arr, int value) {
        for (int i = 0; i < arr.length; i++) {
            if (arr[i] == value) {
                return i;
            }
        }
        return -1;
    }
}


 
/*
run
 
2
 
*/

 

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