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public class Main {
    public static void main(String[] args) {
        int[] intary = { 99,12,22,34,45,67,5678,8990 };
        int no = 5678;
        int i = 0;
        boolean found = false;
        for ( ; i < intary.length; i++) {
            if (intary[i] == no) {
                found = true;
                break;
            }
        }
        if (found) {
            System.out.println(no + " element index position is: " + i);
        } 
        else {
            System.out.println(no + " element is not in the array");
        }
    }
}

5678 element index position is: 6