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 … Read more
interface
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 … Read more
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 … Read more
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 … Read more
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 … Read more
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 … Read more
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 … Read more
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: … Read more
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 … Read more
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); … Read more