Greatest Number In Array(Conditional Operator)

class ArrayHighest{
public static int guessWhat( int arr[] )
    {  int x= 0;
       for( int i = 0; i < arr.length; i++ )
          x = x < arr[i] ? arr[i] : x;
       return x;
    }
public static void main(String args[]){
int[] arr = new int[]{1,4,300,2,512,6,7,8,9};
int a = guessWhat(arr);

System.out.println("Highest Number in The Array is::" + a);
}
}