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Java Interfaces for Beginners Explained with Examples - MPS
This tutorial will guide you on what are interfaces in Java. You will know how to create interfaces and use them in Java programs.
Basics of Interfaces in Java
You can go through the following sections to learn about Java interfaces.
Interfaces concept in Java
Description:
Interfaces can often be confused with classes in Java. However, the outlining difference between a class and an interface is that an interface contains abstract methods. A class can implement an interface to provide definition or body to abstract methods while the other way is not possible. An interface is just like a reference type in Java. An interface along with the abstract methods contains pre-defined constants and static methods. In OOPS language, an interface defines the behavior a class implements. Al the methods declared abstract in the interface are supposed to be defined by the implementing class.
Syntactically, one can find many similarities between an interface and a class. An interface can define as many methods as needed. Much like a class, an interface is saved with interfaceName.java and the bytecode is processed as the interfaceName.class file. However, an interface like a class cannot be instantiated and does not contain any constructors. The concept of multiple Inheritance can be implemented by interfaces as an interface can extend multiple interfaces, which is not possible with classes. The variables defined through interfaces are always static and final. www.myprogrammingschool.com/2020/10/java-interfaces-for-b...
Java Interfaces for Beginners Explained with Examples - MPS
This tutorial will guide you on what are interfaces in Java. You will know how to create interfaces and use them in Java programs.
Basics of Interfaces in Java
You can go through the following sections to learn about Java interfaces.
Interfaces concept in Java
Description:
Interfaces can often be confused with classes in Java. However, the outlining difference between a class and an interface is that an interface contains abstract methods. A class can implement an interface to provide definition or body to abstract methods while the other way is not possible. An interface is just like a reference type in Java. An interface along with the abstract methods contains pre-defined constants and static methods. In OOPS language, an interface defines the behavior a class implements. Al the methods declared abstract in the interface are supposed to be defined by the implementing class.
Syntactically, one can find many similarities between an interface and a class. An interface can define as many methods as needed. Much like a class, an interface is saved with interfaceName.java and the bytecode is processed as the interfaceName.class file. However, an interface like a class cannot be instantiated and does not contain any constructors. The concept of multiple Inheritance can be implemented by interfaces as an interface can extend multiple interfaces, which is not possible with classes. The variables defined through interfaces are always static and final. www.myprogrammingschool.com/2020/10/java-interfaces-for-b...