Instance Initializer block is used to initialize the instance data member. It run each time when object

The super keyword in Java is a reference variable which is used to refer immediate parent class object.

The covariant return type specifies that the return type may vary in the same direction as

If subclass (child class) has the same method as declared in the parent class, it is

If a class has multiple methods having same name but different in parameters, it is known

If a class have an entity reference, it is known as Aggregation. Aggregation represents HAS-A relationship.