An inheritance relationship is created using three classes, D, E, and F. Each class has several instance Time left 0:08:48 seen below. class D{ } protected int al; public D() { a1 = 0; System.out.println("D's Default Constructor."); } public D(int al) { this.al = al; System.out.println("D's Overloaded Constructor."); } class E extends D{ protected char b1; public E() { b1 = ''; System.out.println("E's Default Constructor."); } public E(int al, char b1) { super (a1); this.b1b1; System.out.println("E's Overloaded Constructor."); class F extends E{ protected String c1; public F() { super(); c1 = ""; System.out.println("F's Default Constructor."); } public F(String c1) { this.c1c1; System.out.println("F's First Overloaded Constructor."); } public F(int al, char b1, String c1) { this (c1); } this.al al; this.bl= b1; System.out.println("F's Second Overloaded Constructor."); } What is printed by the following code snippet? F obj1 = new F("true"); F obj2 = new F(1, 't', "True"); What is printed by the following code snippet? F obj1 = new F("true"); F obj2= new F(1, 't', "True"); D's Default Constructor. E's Default Constructor. F's Second Overloaded Constructor. Time left 0:08:38 Time left 0:08:28 F's First Overloaded Constructor.
An inheritance relationship is created using three classes, D, E, and F. Each class has several instance Time left 0:08:48 seen below. class D{ } protected int al; public D() { a1 = 0; System.out.println("D's Default Constructor."); } public D(int al) { this.al = al; System.out.println("D's Overloaded Constructor."); } class E extends D{ protected char b1; public E() { b1 = ''; System.out.println("E's Default Constructor."); } public E(int al, char b1) { super (a1); this.b1b1; System.out.println("E's Overloaded Constructor."); class F extends E{ protected String c1; public F() { super(); c1 = ""; System.out.println("F's Default Constructor."); } public F(String c1) { this.c1c1; System.out.println("F's First Overloaded Constructor."); } public F(int al, char b1, String c1) { this (c1); } this.al al; this.bl= b1; System.out.println("F's Second Overloaded Constructor."); } What is printed by the following code snippet? F obj1 = new F("true"); F obj2 = new F(1, 't', "True"); What is printed by the following code snippet? F obj1 = new F("true"); F obj2= new F(1, 't', "True"); D's Default Constructor. E's Default Constructor. F's Second Overloaded Constructor. Time left 0:08:38 Time left 0:08:28 F's First Overloaded Constructor.
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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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
Transcribed Image Text:An inheritance relationship is created using three classes, D, E, and F. Each class has several instance Time left 0:08:48
seen below.
class D{
}
protected int al;
public D() {
a1 = 0;
}
System.out.println("D's Default Constructor.");
}
public D(int al) {
this.al = al;
System.out.println("D's Overloaded Constructor.");
}
class E extends D{
protected char b1;
public E() {
b1 = ¹;
System.out.println("E's Default Constructor.");
}
public E(int al, char b1) {
super (a1);
this.b1 = b1;
System.out.println("E's Overloaded Constructor.");
}
class F extends E{
protected String c1;
public F() {
super();
c1 = " ";
System.out.println ("F's Default Constructor.");
}
public F(String c1) {
this.c1c1;
System.out.println("F's First Overloaded Constructor.");
}
public F(int al, char b1, String c1) {
this (c1);
}
this.al al;
this.b1 b1;
System.out.println("F's Second Overloaded Constructor.");
}
What is printed by the following code snippet?
F obj1 = new F("true");
F obj2 = new F(1, 't', "True");
What is printed by the following code snippet?
F obj1 = new F("true");
F obj2 = new F(1, 't', "True");
D's Default Constructor.
E's Default Constructor.
F's Second Overloaded Constructor.
Time left 0:08:38
Time left 0:08:28
F's First Overloaded Constructor.
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