Cacher is the code snippet organizer for pro developers

//Search an element in an array (gfg array Problem School level) 
import java.util.*;
import java.lang.*;
import java.io.*;
class GFG {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int t = sc.nextInt();
		while (t-- > 0){
		    int n = sc.nextInt();
		    int[] a = new int[n];
		    for (int i = 0; i < n; i++) {
		        a[i] = sc.nextInt();
		    }
		    int element = sc.nextInt();
		    int res = -1;
		    for (int i = 0; i < n; i++) {
		        if (a[i] == element) {
		            res = i;
		            break;
		        } 
		    }
		System.out.println(res);
		}
	}
}