INTERVIEW QUESTIONS J2EE JAVA DETAILS

Question: Can i expand an interface?

Answer: I didn't understand ur question properly. My understanding is by expand you mean extend. If I am right, you can extend interfaces in java. It's same as extending classes in Java.

I didn't understand ur question properly. My understanding is by expand you mean extend. If I am right, you can extend interfaces in java. It's same as extending classes in Java.
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Yes, we can extends our interfaces by other interfaces only. the implementation class of our interface(if it is non-abstract class)should implement all methods which are declared in both interfaces
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Hi,
YES. We can extend interfaces as classes.See the below program.

public interface Itest1
{
public void display();
}
public interface Itest2
{
public void getData();
}

public Itest1 extends Itest2
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yes we can extend one interface into another interface but we cannot extend one interface into class it is possible by using implementing one interface into class by using the keyword implements Source: CoolInterview.com

Ya we can extend interface like classes in java.. we can implement one class with one interface..
Ex:- interface clas extend school
from this ex clas and school both are interfaces.. Source: CoolInterview.com

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