Which inheritance is not supported in Java?

Which inheritance is not supported by Java and why?

Java supports multiple inheritance through interfaces only. A class can implement any number of interfaces but can extend only one class. Multiple inheritance is not supported because it leads to deadly diamond problem.

Which inheritance is not supported in Java Mcq?

Multilevel inheritance is completely supported by Java. Whereas Multiple and Hybrid inheritances are based on Multiple-Superlclasses scenario and hence not supported by Java.

Which is not supported by Java?

Q) Which inheritance in java programming is not supported

NOTE: Java does not support multiple inheritance of classes but it supports multiple inheritance for interfaces. Means, a class cannot inherit more than one class but it can inherit and implement multiple interfaces.

What is not type of inheritance?

6. Static members are not inherited to subclass. Explanation: Static members are also inherited to subclasses.

What is true constructor?

What is true about constructor? Explanation: Constructor returns a new object with variables defined as in the class. Instance variables are newly created and only one copy of static variables are created. … Explanation: No instance can be created of abstract class.

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Which of the following is an incorrect array declaration?

Which of these is an incorrect array declaration? Explanation: Operator new must be succeeded by array type and array size.

Is overriding possible in Java?

In Java, methods are virtual by default. We can have multilevel method-overriding. Overriding vs Overloading : … Overriding is about same method, same signature but different classes connected through inheritance.

Why pointers are not used in Java?

So overall Java doesn’t have pointers (in the C/C++ sense) because it doesn’t need them for general purpose OOP programming. Furthermore, adding pointers to Java would undermine security and robustness and make the language more complex.

What is true final class?

What is true of final class? Explanation: Final class cannot be inherited. This helps when we do not want classes to provide extension to these classes. … Since there is no such concept as ‘subpackage’ or ‘package-inheritance’ in Java, declaring class protected or package-private would be the same thing.

What are the types of inheritance?

The different types of Inheritance are:

  • Single Inheritance.
  • Multiple Inheritance.
  • Multi-Level Inheritance.
  • Hierarchical Inheritance.
  • Hybrid Inheritance.

What is Setattr () used for?

What is setattr() used for? The Python setattr() function sets a new specified value argument to the specified attribute name of a class/function’s defined object. This method provides an alternate means to assign values to class variables, in addition to constructors and object functions.

Which of the following is used to make an abstract class?

Which of the following is used to make an Abstract class? Question 6 Explanation: Making atleast one member function as pure virtual function is the method to make abstract class.

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