interface Archives - Page 5 of 5

Interface vs Abstract Class (general OO)

I have had recently two telephone interviews where I’ve been asked about the differences between an Interface and an Abstract class. I have ...

April 12, 2022
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Interfaces vs Types in TypeScript

What is the difference between these statements (interface vs type) in TypeScript? interface X { a: number b: string } type X = ...

April 11, 2022
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What is the difference between an interface and abstract class?

What exactly is the difference between an interface and an abstract class? 3 38

April 10, 2022
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Generic Interface

Here’s one suggestion: public interface Service<T,U> { T executeService(U... args); } public class MyService implements Service<String, Integer> { @Override public String executeService(Integer... args) ...

April 7, 2022
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Implements vs extends: When to use? What’s the difference?

April 7, 2022
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Can a normal Class implement multiple interfaces?

A Java class can only extend one parent class. Multiple inheritance (extends) is not allowed. Interfaces are not classes, however, and a class can ...

April 3, 2022
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Why is there no multiple inheritance in Java, but implementing multiple interfaces is allowed?

April 3, 2022
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