Can we instantiate Interfaces?
- 7 Answers
- 13279 Views
- Ericsson, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / paletipatisrinu
No we can instantiate interface directly.but we can create
instantiate of interface in directly
interface i1
{
public void wish();
}
public class A implements i1
{
public static void main(string...arg)
{
i1 o1=new A();
o1.wish();
}
public void wish()
{
System.out.println("we can create instantiate in directly");
}
}
| Is This Answer Correct ? | 17 Yes | 1 No |
Answer / divya
You can only create a reference of an interface but cannot
instantiate.
| Is This Answer Correct ? | 10 Yes | 2 No |
Answer / bharat vandar
No we can instantiate interface directly.but we can create
instantiate of interface in directly,only class can create
an object of interface
interface x
{
public void abc();
}
class ac implements x
{
x at = new ac();
public void abc()
{
System.out.println("Bharat");
}
}
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / dhawal
answer no 1. is correct programatically but actually
instantiates means obtain the behavier of object we can do
this only by creating object of class ,object has state and
behaviour, in answer 1,we transfer state first and then
write behaviour in the class,then instantiate that class ie
like dynamic method dispatch.means therotically we can not
instantiate Interfaces
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / anil pusuluri
One can't instantiate an interface. One can get a reference
to an interface.
Let's say Class A implements interface iA then we can't
instantiate IA
like IA a = new IA() -- this gives compilation error.
but we can get the referance to interface as below
IA a = new A()
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / nagendra prasadu gandla
Yes you can instanciate but you have to implement the
methods of interface at the time of instanciation itself.
EX:
interface X
{
void abc();
}
class a
{
X z=new X(){void abc(){return;}};
}
| Is This Answer Correct ? | 5 Yes | 7 No |
When will we use them?
What is a generic code?
What are the different ways to handle exceptions?
Explain different ways of passing arguments to sub-routine?
What is boolean strategy?
What is the differences between heap and stack memory in java? Explain
What are abstract classes and anonymous classes?
0 Answers Flextronics, Thomson Reuters, Virtusa,
What is integers and example?
What does @param args mean in java?
How can final class be used?
wht is mean by dirty read?
What is ‘is-a ‘ relationship in java?
Core Java 
