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What is an interface in Java?

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My teaching experience 12 years

In Java, an interface is a collection of abstract methods. It defines a contract that implementing classes must adhere to by providing concrete implementations for those methods. Interfaces facilitate multiple inheritance and help achieve abstraction and modularity in Java programs.
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Python trainer believe in practical learning.

In Java, an interface is a blueprint for a class, defining a set of methods that a class implementing the interface must provide. It specifies what methods a class should have without specifying how they should be implemented. Interfaces allow for multiple inheritance-like behavior by enabling a class...
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In Java, an interface is a blueprint for a class, defining a set of methods that a class implementing the interface must provide. It specifies what methods a class should have without specifying how they should be implemented. Interfaces allow for multiple inheritance-like behavior by enabling a class to implement multiple interfaces, facilitating the creation of loosely coupled, interchangeable components. They promote code reusability, modularity, and help define contracts between different parts of a program or between libraries, enabling polymorphism and abstraction in Java programming.

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Engineering background teacher with 5+ years of teaching experience.

In Java, an interface is a collection of abstract methods. Classes implement interfaces, defining how they fulfill the contract specified by the interface. It helps achieve abstraction and multiple inheritance.
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C language Faculty (online Classes )

A Java interface contains static constants and abstract methods. What are Interfaces in Java? The interface in Java is a mechanism to achieve abstraction.
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