Answer:

for ( int index=0; index <x.length; index++ )

  if ( x[index] > max )

    max = x[index] ;

Using the Method

Here is how our new method is used by a main() program. Notice that an ArrayOps object must be created before the method can be used.

class ArrayDemo
{
  public static void main ( String[] args ) 
  {
    int[] ar1 =  { -20, 19, 1, 5, -1, 27, 19, 5 } ;

    ArrayOps operate = new ArrayOps();     // create an ArrayOps object

    int biggest = operate.findMax( ar1 );  // call findMax() with a reference to the array

    System.out.println("The maximum is: " + biggest );
  }

}

The program defines a class called ArrayDemo.

ArrayDemo holds the static main() method.
main() creates an array object, ar1
main() creates an ArrayOps object, operate.
The findMax() method of the ArrayOps object is called with a reference to the array object ar1 as a parameter.

QUESTION 4:

What, exactly, is ar1 ?