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Types of Interfaces in Java

Last Updated: 14 March 2023

In Java, an interface is a reference type similar to a class that can contain only constants, the method signatures, default methods, and st ...read more

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Difference Between Callable and Runnable in Java

Last Updated: 16 August 2022

java.lang.Runnable is an interface that is to be implemented by a class whose instances are intended to be executed by a thread. There are t ...read more

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Cloneable Interface in Java

Last Updated: 24 November 2020

The Java.lang.Cloneable interface is a marker interface. It was introduced in JDK 1.0. There is a method clone() in the Object class. Clonea ...read more

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Why Java Interfaces Cannot Have Constructor But Abstract Classes Can Have?

Last Updated: 29 August 2021

Prerequisite: Interface and Abstract class in Java.A Constructor is a special member function used to initialize the newly created object. I ...read more

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Java Class vs Interfaces

Last Updated: 11 March 2025

In Java, the difference between a class and an interface is syntactically similar; both contain methods and variables, but they are differen ...read more

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Future and FutureTask in java

Last Updated: 08 February 2023

Prerequisite: Future and callableFuture:A Future interface provides methods to check if the computation is complete, to wait for its complet...read more

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Supplier Interface in Java with Examples

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The Supplier Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programmi ...read more

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Function Interface in Java

Last Updated: 16 April 2025

The Function Interface is a part of the java.util.function package that has been introduced since Java 8, to implement functional programmin ...read more

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Static method in Interface in Java

Last Updated: 22 September 2021

Static Methods in Interface are those methods, which are defined in the interface with the keyword static. Unlike other methods in Interface ...read more

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Java Runnable Interface

Last Updated: 10 January 2025

java.lang.Runnable is an interface that is to be implemented by a class whose instances are intended to be executed by a thread. There are t ...read more

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Interfaces and Inheritance in Java

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A class can extend another class and can implement one and more than one Java interface. Also, this topic has a major influence on the conce...read more

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Marker Interface in Java

Last Updated: 02 January 2025

Marker Interface in Java is an empty interface means having no field or methods. Examples of marker interface are Serializable, Cloneable a ...read more

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Last Updated: 28 March 2025

An Interface in Java programming language is defined as an abstract type used to specify the behaviour of a class. An interface in Java is a...read more

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Java Comparator Interface

Last Updated: 16 April 2025

The Comparator interface in Java is used to sort the objects of user-defined classes. The Comparator interface is present in java.util packa ...read more

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Nested Interface in Java

Last Updated: 10 January 2025

We can declare interfaces as members of a class or another interface. Such an interface is called a member interface or nested interface. In ...read more

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