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Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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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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