Assume method testQuestion() is a method in the Purchase class. Assume the Purchase class has a constructor that has parameters of name, groupCount, groupPrice, and numberBought. public Purchase testQuestion(Purchase p1, int newX) { newX = 20; this.setName("green beans"); p1.setName("corn"); Purchase p2 = new Purchase("broccoli", 5, 4.50, 10); return p2; } Referring to the above method, list the output that would be printed by Sysyem.out.println() when the following PurchaseDemo2 is executed. public class PurchaseDemo2 { public static void main(String[] args) { Purchase tomsPurchase = new Purchase("squash",4,3.50,6 ); Purchase jillsPurchase = new Purchase("carrot",8,1.99,4 ); Purchase billsPurchase; int x = 10; billsPurchase = tomsPurchase.testQuestion(jillsPurchase, x); System.out.println(tomsPurchase.getName()); System.out.println(jillsPurchase.getName()); System.out.println(billsPurchase.getName()); System.out.println(x); } }
Assume method testQuestion() is a method in the Purchase class. Assume the Purchase class has a constructor that has parameters of name, groupCount, groupPrice, and numberBought. public Purchase testQuestion(Purchase p1, int newX) { newX = 20; this.setName("green beans"); p1.setName("corn"); Purchase p2 = new Purchase("broccoli", 5, 4.50, 10); return p2; } Referring to the above method, list the output that would be printed by Sysyem.out.println() when the following PurchaseDemo2 is executed. public class PurchaseDemo2 { public static void main(String[] args) { Purchase tomsPurchase = new Purchase("squash",4,3.50,6 ); Purchase jillsPurchase = new Purchase("carrot",8,1.99,4 ); Purchase billsPurchase; int x = 10; billsPurchase = tomsPurchase.testQuestion(jillsPurchase, x); System.out.println(tomsPurchase.getName()); System.out.println(jillsPurchase.getName()); System.out.println(billsPurchase.getName()); System.out.println(x); } }
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Concept explainers
OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
Question
Assume method testQuestion() is a method in the Purchase class. Assume the Purchase class has a constructor that has parameters of name, groupCount, groupPrice, and numberBought.
public Purchase testQuestion(Purchase p1, int newX)
{
newX = 20;
this.setName("green beans");
p1.setName("corn");
Purchase p2 = new Purchase("broccoli", 5, 4.50, 10);
return p2;
}
Referring to the above method, list the output that would be printed by Sysyem.out.println() when the following PurchaseDemo2 is executed.
public class PurchaseDemo2
{
public static void main(String[] args)
{
Purchase tomsPurchase = new Purchase("squash",4,3.50,6 );
Purchase jillsPurchase = new Purchase("carrot",8,1.99,4 );
Purchase billsPurchase;
int x = 10;
billsPurchase = tomsPurchase.testQuestion(jillsPurchase, x);
System.out.println(tomsPurchase.getName());
System.out.println(jillsPurchase.getName());
System.out.println(billsPurchase.getName());
System.out.println(x);
} }
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