查找整数

import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner scan=new Scanner(System.in);int n=scan.nextInt();int [] arr=new int[n];for(int i=0;i<n;i++){arr[i]=scan.nextInt();}int num=scan.nextInt();for(int i=0;i<n;i++){if(num==arr[i]){System.out.println(i+1);break;}else if(i==n-1){System.out.println(-1);}}}}