Show the output of running the class Test in the following code lines: interface A { } class C { } class D extends C { } class B extends D implements A { } public class Test{ public static void main(String[] args) { B b = new B(); if (b instanceof A) System.out.println("b is an instance of A"); if (b instanceof C) System.out.println("b is an instance of C"); } Nothing. b is an instance of A. b is an instance of C. b is an instance of A followed by b is an instance of C.
Show the output of running the class Test in the following code lines: interface A { } class C { } class D extends C { } class B extends D implements A { } public class Test{ public static void main(String[] args) { B b = new B(); if (b instanceof A) System.out.println("b is an instance of A"); if (b instanceof C) System.out.println("b is an instance of C"); } Nothing. b is an instance of A. b is an instance of C. b is an instance of A followed by b is an instance of C.
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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Answer the follwoing question regading java:
![Show the output of running the class Test in the following code lines:
interface A {
}
class C {
}
class D extends C {
}
class B extends D implements A {
}
public class Test{
public static void main(String[] args) {
B b = new B();
if (b instanceof A)
System.out.println("b is an instance of A");
if (b instanceof C)
System.out.println("b is an instance of C");
}
Nothing.
b is an instance of A.
b is an instance of C.
b is an instance of A followed by b is an instance of C.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4657391b-9410-4056-b18b-8112fb5f83eb%2Ff5726fa3-d418-4da2-a1a5-af9985e654b5%2F5d4a2u_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Show the output of running the class Test in the following code lines:
interface A {
}
class C {
}
class D extends C {
}
class B extends D implements A {
}
public class Test{
public static void main(String[] args) {
B b = new B();
if (b instanceof A)
System.out.println("b is an instance of A");
if (b instanceof C)
System.out.println("b is an instance of C");
}
Nothing.
b is an instance of A.
b is an instance of C.
b is an instance of A followed by b is an instance of C.
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