we cannot create an object of interface but we can create
a variable of it
Answer / mahesh
For creating an object, interface does not contain the body of its abstract methods. Hence compiler does not have enough data for creating an object out of it.
On the other hand you can create a variable of that interface with any other class implementing that interface.
E.g. A is an interface and B is a class implementing A.
Now if you create
A obj = new A();
This statement wont give an implementation of methods inside A.
But,
class B implements A{
}
A obj = new B();
Here class B will be defining all the abstract methods inside interface A.
Hence it is not possible to create an object of interface but you can create a variable of it.
Is This Answer Correct ? | 9 Yes | 1 No |
What is a constructor, constructor overloading in java?
If a variable is declared as private, where may the variable be accessed?
What is string builder in java?
What are the default and parameterized constructors?
What is flush buffer?
what is a thread?
What are different types of control structures?
Why is String immutable?
Can we create our own daemon thread?
What is a ternary operator in java?
Tell me the Importent classes in net package?
What is the collections api?