HDU 2071 JAVA

Problem Description
There are some students in a class, Can you help teacher find the highest student .

Input
There are some cases. The first line contains an integer t, indicate the cases; Each case have an integer n ( 1 ≤ n ≤ 100 ) , followed n students’ height.

Output
For each case output the highest height, the height to two decimal plases;

Sample Input
2
3 170.00 165.00 180.00
4 165.00 182.00 172.00 160.00

Sample Output
180.00
182.00

import java.util.Scanner;public class Main {        public static void main(String args[]){        Scanner sc=new Scanner(System.in);        int t=sc.nextInt();        while(t-->0){           int n=sc.nextInt();           double max=sc.nextDouble();           for(int j=1;j<n;j++){             double m=sc.nextDouble();             if(m>max)             max=m;          }          System.out.printf("%.2f",max);          System.out.println();         }        }}