inner classes are in the same file, whereas subclasses can be in another file, maybe in another package . You cannot get an instance of an inner class without an instance of the class that contains it. inner classes have the methods they want, whereas subclasses have the methods of their parent class.
Read moreWhat is the advantage of static inner class in Java?
The advantage of a static nested class is that it doesn’t need an object of the containing class to work . This can help you to reduce the number of objects your application creates at runtime. It’s called a nested class. All nested classes are implicitly static; if they are not static they are called inner classes.
Read moreWhat are the disadvantages of using inner classes in Java?
Q7)What are disadvantages of using inner classes?
Read moreHow do you declare an inner class in Java?
Creating an inner class is quite simple. You just need to write a class within a class . Unlike a class, an inner class can be private and once you declare an inner class private, it cannot be accessed from an object outside the class. Following is the program to create an inner class and access it.
Read moreWhat is the purpose of inner class in Java?
Java inner class or nested class is a class that is declared inside the class or interface. We use inner classes to logically group classes and interfaces in one place to be more readable and maintainable . Additionally, it can access all the members of the outer class, including private data members and methods.
Read moreCan we declare inner class as protected?
We can declare the inner classes as private or protected , but it is not allowed in outer classes.
Read moreCan nested class be protected?
Nested classes that are declared static are called static nested classes. A nested class is a member of its enclosing class. … Static nested classes do not have access to other members of the enclosing class. As a member of the OuterClass , a nested class can be declared private , public , protected , or package private .
Read more