All methods of an Interface do not contain implementation (method bodies) as of all versions below Java 8 . Starting with Java 8, default and static methods may have implementation in the interface definition.
Read moreWhat does it mean to implement an interface in Java?
The implements keyword is used to implement an interface . The interface keyword is used to declare a special type of class that only contains abstract methods. To access the interface methods, the interface must be “implemented” (kinda like inherited) by another class with the implements keyword (instead of extends ).
Read moreWhich class is not inherited in Java?
Static members are part of the class instance and are not inherited (cannot be overriden too).
Read moreHow do you make a class non inheritable?
To create a non heritable class in java declare the class as final using final keyword in front of class declaration . Final class cannot be inherited. To create a non overridable method decalre the method private or final. Both the keyword final and private avoid prevent a method from being overridden.
Read moreWhat is a base class and derived class?
The class whose members are inherited is called the base class, and the class that inherits those members is called the derived class .
Read moreWhat is a child class?
Child class is the class that inherits from another class , also called derived class.
Read moreWhich class is base class in Java?
lang. Object class is the super base class of all Java classes. Every other Java classes descends from Object.
Read more