What is the difference between class and sub class?
Table of Contents
- 1 What is the difference between class and sub class?
- 2 What is the difference between nested class and inheritance?
- 3 What is nested class differentiate between static nested class and non-static nested class?
- 4 How are nested classes differ from inner classes explain in detail?
- 5 What is the difference between subclasses and inner classes in Java?
- 6 What are the advantages of nested classes in Java?
What is the difference between class and sub class?
Definitions: A class that is derived from another class is called a subclass (also a derived class, extended class, or child class). The class from which the subclass is derived is called a superclass (also a base class or a parent class).
What is the difference between nested class and inheritance?
A subclass inherits all the non-private members of its parent. while a nested class can access even private members of its outer class.
What is the difference between base class and subclass?
Superclass vs Subclass When implementing inheritance, the class that inherits the properties and methods from the Superclass is the Subclass. Superclass is known as base class, parent class. Subclass is known as derived class, child class. A superclass cannot use the properties and methods of the Subclass.
What is the relationship between base class and subclass?
The new class automatically contains some or all methods and variables of the original class. The new derived class is called a child class, or subclass. The original class is called parent class, or superclass, or base class.
What is nested class differentiate between static nested class and non-static nested class?
A non-static nested class has full access to the members of the class within which it is nested. A static nested class does not have a reference to a nesting instance, so a static nested class cannot invoke non-static methods or access non-static fields of an instance of the class within which it is nested.
How are nested classes differ from inner classes explain in detail?
Non-static nested classes are called inner classes. A nested class is a member of its enclosing class. Non-static nested classes (inner classes) have access to other members of the enclosing class, even if they are declared private. Static nested classes do not have access to other members of the enclosing class.
Is nested class is a derived class?
Net Framework allows you to define a class within another class. Such class is called a nested class. If it is nested in the protected section it is visible in derived classes, if it is nested in the private section, it is only visible for the members of the outer class.
What is the difference between a nested class and a subclass?
In nested class (inner class) if you want to access a data member (ex:method) you have to first to create a instance of the outer class and using that as reference you can create an object use any of the data members of the class In subclass the data members of the class and its parent classes can be easily accessed without any need
What is the difference between subclasses and inner classes in Java?
Sub classes uses when you have inheritance logic. Inner classes are used when you have a class that you need to use only in particular class. That way no one will use the class unless he is in the class that need to use the inner class. For example: You have class A Class a has a Map.
What are the advantages of nested classes in Java?
They enable you to logically group classes that are only used in one place, thus this increases the use of encapsulation, and creates more readable and maintainable code. The scope of a nested class is bounded by the scope of its enclosing class. Thus in above example, class NestedClass does not exist independently of class OuterClass.
Does a nested class inherit from the enclosing class in Java?
It does not inherit anything from the enclosing class, and an instance of the nested class cannot be assigned to a variable reference to the enclosing class. In Java, a nested class that is not static is called an inner class. An inner class can interact with the instance of its enclosing class—it has access to private variables