B1. Answer the following questions: a. Given: class A { class Cextends B { public String toString() return "A object"; public String toString () { return "C object"; class B extends A public String toString() return "B object"; What is the output of executing the following Test program? [7 marks] public class Test { public static void main(String() arga){ Object x1 = new A(): System. out.println (x1. toString ()): Object x2 = new B(); System.out.println(x2. toString ()) : System.out.println(x3. tostring()); Object x3 = new C(); A a = new C(); Bb = new C(); System.out.println(h.tOString()): System.out.println(a.toString()); C C = new C(); System.out.println(c. tostring ()) ;

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
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104 bmal Exam Hall 2016
A "ITDR2104 Final Exam - Spring 2 x
O File C:/Users/user/Desktop/programming/Final%20Exam/ITDR2104%20Final%20Exam%20-%20Spring%202018%20-%20Copy%20A.pdf.pdf
ED Page view
A Read aloud
T Add text V Draw
Y Highlight
O Erase
B1. Answer the following questions:
10
a. Given:
class A
class Cextends B {
public String toString() {
return "A object";
public String toString () {
return "C object";
class B extends A(
public String toString()
return "B object"
What is the output of executing the following Test program? [7 marks]
public class Test (
public static void main (String () arge)
Object x1 = new A():
Object x2 = new B();
System.out.println (x1. tostring () ) :
System.out.println (x2. tostring () )
System.out.println (x3. tostring () ) :
Object x3 = new C();
A a = new C(); System.out.println (a.tostring ())
= new C(); System.out.println (b.tostring ())
System.out.println (c.tostring ())
в ь
C C = new C();
Transcribed Image Text:104 bmal Exam Hall 2016 A "ITDR2104 Final Exam - Spring 2 x O File C:/Users/user/Desktop/programming/Final%20Exam/ITDR2104%20Final%20Exam%20-%20Spring%202018%20-%20Copy%20A.pdf.pdf ED Page view A Read aloud T Add text V Draw Y Highlight O Erase B1. Answer the following questions: 10 a. Given: class A class Cextends B { public String toString() { return "A object"; public String toString () { return "C object"; class B extends A( public String toString() return "B object" What is the output of executing the following Test program? [7 marks] public class Test ( public static void main (String () arge) Object x1 = new A(): Object x2 = new B(); System.out.println (x1. tostring () ) : System.out.println (x2. tostring () ) System.out.println (x3. tostring () ) : Object x3 = new C(); A a = new C(); System.out.println (a.tostring ()) = new C(); System.out.println (b.tostring ()) System.out.println (c.tostring ()) в ь C C = new C();
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