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Welcome to the Inheritance MCQs Page

Dive deep into the fascinating world of Inheritance with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Inheritance, a crucial aspect of Java Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Inheritance, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Java Programming.

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Check out the MCQs below to embark on an enriching journey through Inheritance. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Java Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Inheritance. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Inheritance MCQs | Page 7 of 8

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Q61.
Which is the keyword used to implement inheritance in Java?
Discuss
Answer: (a).extends
Q62.
What is the output of the below Java program with inheritance?
class Sweet
{
  void price()
  {
    System.out.print("Sweet=$10 ");
  }
}
class Sugar extends Sweet
{
  void price()
  {
    super.price();
    System.out.print("Sugar=$20");
  }
}
public class JavaInheritance1
{
  public static void main(String[] args)
  {
    Sugar su = new Sugar();
    su.price();
  }
}
Discuss
Answer: (a).Sweet=$10 Sugar=$20
Q63.
Can you call it a full-fledged inheritance of using ABSTRACT classes and INTERFACES in Java?
Discuss
Answer: (a).NO
Discuss
Answer: (c).Access modifiers like default, public, protected, private
Q65.
To stop or block inheriting a given class, the ___ keyword is used before the class.
Discuss
Answer: (c).final
Q66.
What is the maximum number of levels possible in a Multilevel Inheritance in Java?
Discuss
Answer: (d).No maximum level
Q67.
What is the output of the below java program with Constructors and Inheritance?
class Processor
{
  Processor()
  {
    System.out.print("Inside Processor() Constructor. ");
  }
}
class I3Processor extends Processor
{
  I3Processor()
  {
    System.out.print("Inside I3Processor() Constructor. ");
  }
}
class I5Processor extends I3Processor
{
  I5Processor()
  {
    System.out.print("Inside I5Processor() Constructor. ");
  }
}

public class JavaInheritance2
{
  public static void main(String[] args)
  {
    I5Processor i5 = new I5Processor();
  }
}
Discuss
Answer: (c).Inside Processor() Constructor. Inside I3Processor() Constructor. Inside I5Processor() Constructor.
Q68.
What is the output of the below Java program with Constructors using Inheritance?
class Ant
{
  Ant(String name)
  {
    System.out.print("Inside Ant(String) Constructor. ");
  }
}
class WildAnt extends Ant
{
  WildAnt()
  {
    System.out.print("Inside WildAnt() Constructor. ");
  }
}

public class Inheritance3
{
  public static void main(String[] args)
  {
    WildAnt wa = new WildAnt();
  }
}
Discuss
Answer: (d).Compiler error
Q69.
If a class is not subclassed by any class, then defining a default constructor is not mandatory in Java.State TRUE or FALSE.
Discuss
Answer: (a).TRUE
Q70.
What is the output of the below Java program?
final class Bus
{
  void show()
  {
    System.out.print("Generic Bus. ");
  }
}
class ElectricBus extends Bus
{
  void show()
  {
    System.out.println("Electric Bus. ");
  }
}
public class Inheritance4
{
  public static void main(String[] args)
  {
    ElectricBus eb = new ElectricBus();
    eb.show();
  }
}
Discuss
Answer: (d).Compiler error.
Page 7 of 8

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