Which Of The Following Is Not An Abstract Class?

Which of these is not abstract? Explanation: Thread is not an abstract class.



Which of the following is correct about abstract class?

Abstract data class is not used to create objects in Java and it is designed only to act as a base class to be inherited by other classes. Both Statement are correct. For more information Refer:Abstract Classes in Java Option (D) is correct.


Which of the following is not an abstract class?

Which of these is not abstract? Explanation: Thread is not an abstract class.


Which of the following statement is true in Java?

The correct answer to the question “Which statement is true about Java” is, option (a). Platform independent programming language. As we already know that Java is a platform-independent language, which functions on a set principle “compile once, and run everywhere”.


Which of the following is not true about abstract class?

Which of these is not a correct statement? Explanation: Abstract class cannot be directly initiated with new operator, Since abstract class does not contain any definition of implementation it is not possible to create an abstract object.


Which of the following is false about abstract class in Java?

Which of the following is false about abstract classes in Java? If we derive an abstract class and do not implement all the abstract methods, then the derived class should also be marked as abstract using 'abstract' keyword. Abstract classes can have constructors.


What makes a class abstract C++?

By definition, an abstract class in C++ is a class that has at least one pure virtual function (i.e., a function that has no definition). The classes inheriting the abstract class must provide a definition for the pure virtual function; otherwise, the subclass would become an abstract class itself.


Which statements are true about an abstract class abstract class has at least one pure virtual function?

An abstract class is a class in C++ which have at least one pure virtual function. Abstract class can have normal functions and variables along with a pure virtual function. Abstract class cannot be instantiated, but pointers and references of Abstract class type can be created.


Which of the following is true abstract classes in Java?

N/A

Q.Which of the following is true in the case of abstract class
B.Abstract classes can not be inherited.
C.An abstract class contains only abstract methods.
D.All of the above.
Answer» a. Abstract constructors cannot be created.


What is need of abstract class in C++?

The purpose of an abstract class (often referred to as an ABC) is to provide an appropriate base class from which other classes can inherit. Abstract classes cannot be used to instantiate objects and serves only as an interface. Attempting to instantiate an object of an abstract class causes a compilation error.


Which of the following is true if a class is declared abstract it must contain at least one abstract method?

If it contains at least one abstract method, it must be declared abstract. And yes, you can declare abstract class without defining an abstract method in it. Once you declare a class abstract it indicates that the class is incomplete and, you cannot instantiate it.


Which of the following is not true about Java?

N/A

Q.Which of the following is not true about Java beans?
B.Extends java.io.Serializable class
C.Provides no argument constructor
D.Provides setter and getter methods for its properties
Answer» b. Extends java.io.Serializable class


Which statements are true for both abstract classes and interfaces?

Both abstract classes and interfaces can contain static methods, so E is correct. Both abstract classes and interfaces require a concrete subclass to be instantiated, so F is correct.


Dated : 20-Jul-2022

Category : Education