An interface in Java is a reference type that defines the behavior of a class through abstract types, allowing for abstraction, polymorphism, and multiple inheritance. It can contain constants, method signatures, and only the bodies for default and static methods. TCCI Computer Coaching offers various programming language courses, including Java, to enhance skills for a successful career in software development.

1. What is an Interface in Java?
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Interfaces are tools and concepts that technology developers use as points of interaction
between hardware and software components. They help all components of a system
communicate with each other through an input-output system and detailed protocols while
allowing them to function independently.
In Java, an interface specifies the behavior of a class by providing an abstract type. As one of
the core concepts of Java, abstraction, polymorphism, and multiple inheritance are supported
by this technology. Interfaces are used in Java to achieve abstraction.

2. What are interfaces and types in Java?
In Java, an interface is a reference type, just like a class, that can only contain constants,
method signatures, default methods, and static methods, and its nested variants. In an
interface, the method body exists only for default methods and static methods. Writing an
interface is similar to writing a standard class.
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