Rules for Java Class A class can have only public or default(no modifier) access specifier . It can be either abstract, final or concrete (normal class). It must have the class keyword, and class must be followed by a legal identifier. It may optionally extend only one parent class.
Read moreCan inner classes have constructors?
You can observe the constructor chain for the inner class when you extend an inner class . so you can see that you are able to call the super constructor of your nested class passing to that constructor the MainClass , and calling . super on mainClass object instance.
Read moreHow do you create an object of one class in another class in Java?
To create an object of Main , specify the class name, followed by the object name, and use the keyword new :
Read moreCan a class be declared inside another class?
A class can be declared within the scope of another class . Such a class is called a “nested class.” Nested classes are considered to be within the scope of the enclosing class and are available for use within that scope.
Read moreWhat are the advantages of inner classes?
The main advantages of a nested (inner) class are:
Read moreWhat is the use of static inner class?
Java static nested class A static class is a class that is created inside a class, is called a static nested class in Java. It cannot access non-static data members and methods. It can be accessed by outer class name. It can access static data members of the outer class, including private .
Read moreWhat is nested class explain by taking a suitable example?
A nested class is a class which is declared in another enclosing class . A nested class is a member and as such has the same access rights as any other member. The members of an enclosing class have no special access to members of a nested class; the usual access rules shall be obeyed.
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