What is interface in Java
Interface in java is core part of Java programming language and one of the way to achieve abstraction in Java along with abstract class. Even though interface is fundamental object oriented concept ; Many Java programmers thinks Interface in Java as advanced concept and refrain using interface from early in programming career. At very basic level interface in java is a keyword but same time it is an object oriented term to define contracts and abstraction , This contract is followed by any implementation of Interface in Java. Since multiple inheritance is not allowed in Java, interface is only way to implement multiple inheritance at Type level. In this Java tutorial we will see What is an interface in Java, How to use interface in Java and where to use interface in Java and some important points related to Java interface. What is an interface in Java is also a common core Java question which people asked on various programming exams and interviews.
Interface in java is core part of Java programming language and one of the way to achieve abstraction in Java along with abstract class. Even though interface is fundamental object oriented concept ; Many Java programmers thinks Interface in Java as advanced concept and refrain using interface from early in programming career. At very basic level interface in java is a keyword but same time it is an object oriented term to define contracts and abstraction , This contract is followed by any implementation of Interface in Java. Since multiple inheritance is not allowed in Java, interface is only way to implement multiple inheritance at Type level. In this Java tutorial we will see What is an interface in Java, How to use interface in Java and where to use interface in Java and some important points related to Java interface. What is an interface in Java is also a common core Java question which people asked on various programming exams and interviews.
