Find First and Last Index of a Number

public class FirstAndLastIndedOfNumber {

    public static void main(String[] args) {
        int arr[] = {1, 2, 2, 3, 4, 5, 3, 2, 7, 22, 22};        int first = -1;        int last = -1;        boolean flag = true;        int searchNumber = 2;
        for(int i=0; i<arr.length; i++){
            if(searchNumber == arr[i]){
                if(flag){
                    first = i;                    flag = false;                }
                last = i;            }
        }
        System.out.println(first + "\t" + last);    }
}