____________________________

My purchase class is:

import java.util.Scanner;

Public class Purchase

{

private String name;

private int groupCount; //Part of price, like the 2 in 2 for $1.99.

private double groupPrice;//Part of price, like the $1.99

// in 2 for $1.99.

private int numberBought; //Number of items bought.

public void setName(String newName)

{

name = newName;

}

/**

Sets price to count pieces for $costForCount.

For example, 2 for $1.99.

*/

public void setPrice(int count, double costForCount)

{

if ((count <= 0) || (costForCount <= 0))

{

System.out.println("Error: Bad parameter in setPrice.");

System.exit(0);

}

else

{

groupCount = count;

groupPrice = costForCount;

}

}

public void setNumberBought(int number)

{

if (number <= 0)

{

System.out.println("Error: Bad parameter in setNumberBought.");

System.exit(0);

}

else

numberBought = number;

}

/**

Reads from keyboard the price and number of a purchase.

*/

public void readInput( )

{

Scanner keyboard = new Scanner(System.in);

System.out.println("Enter name of item you are purchasing:");

name = keyboard.nextLine( );

System.out.println("Enter price of item as two numbers.");

System.out.println("For example, 3 for $2.99 is entered as");

System.out.println("3 2.99");

System.out.println("Enter price of item as two numbers, now:");

groupCount = keyboard.nextInt( );

groupPrice = keyboard.nextDouble( );

while ((groupCount <= 0) || (groupPrice <= 0))

{ //Try again:

System.out.println("Both numbers must be positive. Try again.");

System.out.println("Enter price of item as two numbers.");

System.out.println("For example, 3 for $2.99 is entered as");

System.out.println("3 2.99");

System.out.println("Enter price of item as two numbers, now:");

groupCount = keyboard.nextInt( );

groupPrice = keyboard.nextDouble( );

}

System.out.println("Enter number of items purchased:");

numberBought = keyboard.nextInt( );

while (numberBought <= 0)

{ //Try again:

System.out.println("Number must be positive. Try again.");

System.out.println("Enter number of items purchased:");

numberBought = keyboard.nextInt( );

}

}

/**

Displays price and number being purchased.

*/

public void writeOutput( )

{

System.out.println(numberBought + " " + name);

System.out.println("at " + groupCount +

" for $" + groupPrice);

}

public String getName( )

{

return name;

}

public double getTotalCost( )

{

return (groupPrice / groupCount) * numberBought;

}

public double getUnitCost( )

{

return groupPrice / groupCount;

}

public int getNumberBought( )

{

return numberBought;

}

}

_____________________________

Assume the following method is added to the class Purchase. Assume the Purchase class has an explicate constructor that has parameters for all the instance variables.

public Purchase testQuestion ( Purchase p1, int newX)

{

newX = 20;

this.setName(pears");

p1.setName(oranges);

p1 = new Purchase (kiwi, 6, 3.00, 3);

Purchase p2 = new Purchase (banana, 5, 4.50, 10);

System.out.println(this.getName());

System.out.println(p1.getName());

System.out.println(p2.getName());

return p2;

}

The Question is:

Referring to the above method, list in the margin to the right the values that would be printed by System.out.println() when the following PurchaseDemo is executed.

public class PurchaseDemo

{

public static void main(String[] args)

{

Purchase oneSale = new Purchase(apples, 4, 3.50, 6);

Purchase twoSale = new Purchase(grapes, 8, 1.99, 4 );

Purchase threeSale;

int x = 10;

System.out.println(oneSale.getName());

System.out.println(twoSale.getName());

threeSale = oneSale.testQuestion(twoSale, x);

System.out.println(oneSale.getName());

System.out.println(twoSale.getName());

System.out.println(threeSale.getName());

System.out.println(x);

}

}