public class A { private int x; public static int count1 = 0; public int count2 = 0; public A (int x) { //TO IMPLEMENT } System.out.println("Ctor of A"); } A.count++; count2++; public class B extends A { protected int y; private int z; public B (int x, int y, int z) { // TO IMPLEMENT System.out.println("Ctor of B"); a. Implement the constructor "public A (int x)" b. Give examples to show the difference between count1 and count2 . Implement a copy constructor for class A d. Implement the constructor "public B (int x, int y, int z)" e. What is the output after calling "B b = new B(1,2,3);"
public class A { private int x; public static int count1 = 0; public int count2 = 0; public A (int x) { //TO IMPLEMENT } System.out.println("Ctor of A"); } A.count++; count2++; public class B extends A { protected int y; private int z; public B (int x, int y, int z) { // TO IMPLEMENT System.out.println("Ctor of B"); a. Implement the constructor "public A (int x)" b. Give examples to show the difference between count1 and count2 . Implement a copy constructor for class A d. Implement the constructor "public B (int x, int y, int z)" e. What is the output after calling "B b = new B(1,2,3);"
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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Question
Computer Science
Transcribed Image Text:public class A {
private int x;
public static int countl = 0;
public int count2 = 0;
}
public A (int x) {
//TO IMPLEMENT
}
System.out.println("Ctor of A");
}
A.count1++;
count2++;
public class B extends A {
protected int y;
private int z;
public B (int x, int y, int z) {
// TO IMPLEMENT
System.out.println("Ctor of B");
a. Implement the constructor "public A (int x)"
b. Give examples to show the difference between count1 and count2
c. Implement a copy constructor for class A
d. Implement the constructor "public B (int x, int y, int z)"
e. What is the output after calling “B b = new B(1,2,3);"
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