When to Use Nested Classes, Local Classes, Anonymous Classes, and Lambda Expressions. As mentioned in the section Nested Classes, nested classes enable you to logically group classes that are only used in one place, increase the use of encapsulation, and create more readable and maintainable code .
Read moreWhat are the advantages of inner classes in Java?
The main advantages of a nested (inner) class are:
Read moreWhy are inner classes discouraged in Java?
Non-static inner classes can hide a performance problem . They do have access to member fields on the enclosing class, but not directly, but via getters which are created automatically. This will be slower then just copying the members of the enclosing class to the inner class.
Read moreWhat are the main disadvantages of using Java inner classes?
Q7)What are disadvantages of using inner classes?
Read moreWhy do we need inner class can’t we just work with outer classes wherever we implement inner classes?
Making Address and City as outer class exposes City to any of the Class . Making it an inner class of Address will make sure that its accessed using object of Address.
Read moreWhat is the difference between class and subclass?
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).
Read moreWhat is the difference between subclass and object?
Object is the root of a hierarchy of classes. The subclass inherits state and behavior in the form of variables and methods from its superclass . The subclass can just use the items inherited from its superclass as is, or the subclass can modify or override it.
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