A good answer might be:

A parameter is data that is supplied to a method just before it starts running.

Array used as a Parameter

Here is a (nearly complete) program:

  1. It defines a class called ArrayOps.
    • ArrayOps contains a method print() to print out each element of an array.
    • The parameter list is: int[] x
      • This declares a formal parameter x which will be a reference to an array object.
      • The caller is expected to supply a reference to an array as an actual parameter

  2. It defines a class called ArrayDemo.
    • ArrayDemo holds the static main() class.
    • The static main() class creates an array object.
    • The static main() class creates an ArrayOps object, ar1.
    • The print() method of the ArrayOps object is "called" with a reference to the array object ar1 as a parameter.

import java.io.*;
class ArrayOps
{
  void print( int[] x )  // the parameter x refers to the data this method is
                         // called with.
  {
    for ( int ____________; _________________; ____________ )
      System.out.print( x[index] + " " );
    System.out.println();
  }
}

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

    System.out.print  ("\nThe array is: " );
    operate.print( ar1 );   // call the print() method of the object
  }

}

QUESTION 2:

Fill in the blanks so that the method prints out each array element. It would benefit you enormously to try to get all the details correct.

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