View Nirupama  Pathak 's Profile
How to define an Interface in Java ?
In Java Interface defines the methods but does not implement them. Interface can include constants. A class that implements the interfaces is bound to implement all the methods defined in Interface.
Emaple of Interface:

public interface sampleInterface {
public void functionOne();

public long CONSTANT_ONE = 1000;
}
Asked by Nirupama Pathak | Nov 15 2017 | Report this Report abuse
Replies (8)
View Chinmay  Hegde 's Profile
An interface is a reference type in Java. It is similar to class. It is a collection of abstract methods. A class implements an interface, thereby inheriting the abstract methods of the interface. Along with abstract methods, an interface may also contain constants, default methods, static methods, and nested types.

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Nov 19 2017 | Report this Report abuse
View Tanya  Sharma 's Profile
An interface is a reference type in Java. It is similar to class. It is a collection of abstract methods. A class implements an interface, thereby inheriting the abstract methods of the interface. Along with abstract methods, an interface may also contain constants, default methods, static methods, and nested types.

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Nov 19 2017 | Report this Report abuse
View Roshan  shah 's Profile
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Nov 18 2017 | Report this Report abuse
View Shivendu  Chatterjee 's Profile
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Nov 18 2017 | Report this Report abuse
View Shivendu  Chatterjee 's Profile
Is Iterator a Class or Interface? What is its use?
Nov 18 2017 | Report this Report abuse
View Khushi   Kumari 's Profile
Unless the class that executes the interface is conceptual, every one of the techniques for the interface should be characterized in the class. An interface can contain any number of strategies. An interface is composed in a record with a .java expansion, with the name of the interface coordinating the name of the document.
Nov 18 2017 | Report this Report abuse
View Khushi   Kumari 's Profile
Unless the class that executes the interface is conceptual, every one of the techniques for the interface should be characterized in the class. An interface can contain any number of strategies. An interface is composed in a record with a .java expansion, with the name of the interface coordinating the name of the document.
Nov 18 2017 | Report this Report abuse
View Diksha  Basu 's Profile
The interface in java is a mechanism to achieve abstraction. There can be only abstract methods in the java interface not method body. It is used to achieve abstraction and multiple inheritance in Java. It cannot be instantiated just like abstract class.
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Nov 17 2017 | Report this Report abuse