Help me in solving LARGESECOND problem

help
,
1

My issue

rewrite code

My code

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int t = scanner.nextInt();

        while (t-- > 0) {
            int n = scanner.nextInt();
            int[] a = new int[n];
            int max=INT_MIN;

            for (int i = 0; i < n; i++) {
                a[i] = scanner.nextInt();
                if(a[i]>max)
                    max=a[i];
                    
            }
            System.out.println(max);
        }
        // Your code goes here
    }
}

Learning course: Practice Arrays
Problem Link: Largest and Second Largest Practice Problem in Arrays