Programming Language › Java Interfaces And Abstract Classes MCQ › Question #2275
Single Choice Not Set

QGiven the following piece of code: 
public class School{
        public abstract double numberOfStudent();
}
which of the following statements is true?

ID: #2275 Java Interfaces And Abstract Classes MCQ 3,464 views
Question Info
#2275Q ID
Not SetDifficulty
Java Interfaces And Abstract Classes MCQTopic
Start Quiz on This Topic
 Your Answer

Choose the Best Option

Click any option to instantly check if you're correct.

  • A The keywords public and abstract cannot be used together. ✔ ✖
  • B The method numberOfStudent() in class School must have a body. ✔ ✖
  • C You must add a return statement in method numberOfStudent(). ✔ ✖
  • D Class School must be defined abstract. ✔ ✖
Correct Answer

Explanation

Class School must be defined abstract.
 Continue Practice
Previous Question Next Question
 Share

Share This Question

Challenge a friend or share with your study group.

 More from This Topic

Related MCQ Questions

In Java, declaring a class abstract is useful... Suppose A is an abstract class, B is a concrete subclass of A, and both A and B have a default constructor. Which of the following is correct? 1. A a = new A();2. A a = new B();3. B b = new A();4. B b = new B(... Which of the following statements regarding abstract classes are true?... Which of the following is a correct interface?... Which of the following class definitions defines a legal abstract class?... Which two of the following are legal declarations for abstract classes and interfaces? 1. final abstract class Test {}2. public static interface Test {}3. final public class Test {}4. protected abstract class ... Determine output of the following code. interface A { } class C { } class D extends C { } class B extends D implements A { } public class Test extends Thread{ public static void main(Str... Runnable is a _____ .... What will be the output? interface A{ public void method(); } class One{ public void method(){ System.out.println("Class One method"); } } class Two extends One implements A{ public void metho... What will be the output? 1. public interface InfA{ 2. protected String getName(); 3. } public class Test implements InfA{ public String getName(){ return "test-name"; } ...