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 constructor and anonymous inner class instance?
In simple words, a nameless inner class is called anonymous inner class. Java anonymous inner classes are useful when we need only one object of the class. Since an anonymous inner class does not have a name, it cannot have a constructor because we know that a constructor name is the same as the class name.
Read moreWhat are the differences between local inner class and member inner class?
inner class: Can only exist withing the instance of its enclosing class. Has access to all members. local class: class declared in a block. It is like an inner class (has access to all members) but it also has access to local scope.
Read moreWhat is an anonymous inner class?
In Java, a class can contain another class known as nested class. It’s possible to create a nested class without giving any name. A nested class that doesn’t have any name is known as an anonymous class. An anonymous class must be defined inside another class. Hence, it is also known as an anonymous inner class.
Read moreWhich is true about an anonymous inner class?
It can extend exactly one class and implement exactly one interface . It can implement multiple interfaces regardless of whether it also extends a class. It can extend exactly one class or implement exactly one interface.
Read moreWhat is true about method local inner class?
Explanation: Option B is correct because a method-local inner class can be abstract , although it means a subclass of the inner class must be created if the abstract class is to be used (so an abstract method-local inner class is probably not useful).
Read moreWhat are inner classes and what are the types?
There are four types of inner classes: member, static member, local, and anonymous . A member class is defined at the top level of the class. It may have the same access modifiers as variables (public, protected, package, static, final), and is accessed in much the same way as variables of that class.
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