interface Archives - Page 3 of 5

What’s the difference between interface and @interface in java?

I haven’t touched Java since using JBuilder in the late 90’s while at University, so I’m a little out of touch – at ...

May 10, 2022
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Traits vs. interfaces

I’ve been trying to study up on PHP lately, and I find myself getting hung up on traits. I understand the concept of ...

May 9, 2022
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Test if object implements interface

What is the simplest way of testing if an object implements a given interface in C#? (Answer to this question in Java) 14 ...

May 8, 2022
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Why are C# 4 optional parameters defined on interface not enforced on implementing class?

I noticed that with the optional parameters in C# 4 if you specify an optional parameter on an interface you don,t have to ...

May 8, 2022
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Should we @Override an interface’s method implementation?

Should a method that implements an interface method be annotated with @Override? The javadoc of the Override annotation says: Indicates that a method ...

May 5, 2022
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When to use an interface instead of an abstract class and vice versa?

This may be a generic OOP question. I wanted to do a generic comparison between an interface and an abstract class on the ...

May 3, 2022
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Interface type check with Typescript

This question is the direct analogon to Class type check with TypeScript I need to find out at runtime if a variable of ...

May 3, 2022
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How should I have explained the difference between an Interface and an Abstract class?

In one of my interviews, I have been asked to explain the difference between an Interface and an Abstract class. Here’s my response: ...

May 2, 2022
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The difference between the Runnable and Callable interfaces in Java

What is the difference between using the Runnable and Callable interfaces when designing a concurrent thread in Java, why would you choose one ...

May 2, 2022
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Why can’t I define a static method in a Java interface?

EDIT: As of Java 8, static methods are now allowed in interfaces. Here’s the example: public interface IXMLizable<T> { static T newInstanceFromXML(Element e); ...

May 2, 2022
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