7 Difference Between Interface and Class

Interface and class both are used to lay the foundation of the language in Java programming. Both of these are interested with each other. Interface and class are related to the behavior of the object which is described in the content. Main difference between interface and class is class defined the kind of the behavior of the object and the interface carry the behavior of the object which are defined by the class for that object.

Bothe interface and the class are very essential parts of the program. Interface and the class both are interested and similar to each other but has some differences. In this article we will discuss what is class in java programming, what is interface in Java programming language. And the main difference between Interface and the class.

Interface vs Class

Sr no.	Interface	Class
1	“Interface” keyword is used to create interface	“Class” keyword is used to create class
2	Interface doesn’t contain constructors	Class contain constructors
3	Interface includes abstract methods	class doesn’t contain the abstract methods
4	in interface all the variables are final and static.	class variable can be final and static
5	Interface supports multiple inherit	class doesn’t support multiple inherit
6	in the interface no objects are created	In class objects class is created
7	in interface variables and the class is declared publicly	In class methods and the variables are not declared publicly

What is Class in Java programming language

When we make an object in Java programming language a user defined structure and prototype is needed. This object structure and prototype is known as the class of the program. This prototype or blueprint represents the essential methods and the properties which are commonly used for the same type of the objects.

This class in Java is provided by the unique fields which are known as the variables in the programming languages. Generally, class declaration includes a ordered components

1. Modifiers
2. Class name
3. Super class if any
4. Interfaces if any
5. Body

What is Interface in JAVA

Interface is very much similar to the class but it only contains declaration methods which are assigned by the class. Interface Syntax is the same as the class because it is a reference type. Main reason to use Interface in Java is only for inheriting more than one class at the same time.

Interface carries only behavior which is assigned to the object by the class. It doesn’t contains methods to follow those behavior. Interface cab be inherited, it uses a extended keyword.

Interface is written as:-

Interface Interface name{/* modifier type var_name= value; modifier type method (parameter-list);

.

.

*/

}

Main difference between Interface and Class.

1. “Class” keyword is used to create class. “Interface” keyword is used to create interface in Java
2. Class can contain constructors. While interface doesn’t contain constructors.
3. Interface includes abstract methods. While class doesn’t contain the abstract methods.
4. In class variable can be final and static. In the other hand in interface all the variables are final and static.
5. Interface supports multiple inherit while class doesn’t support multiple inherit
6. In class objects class is created. While in the interface no objects are created.
7. In class methods and the variables are not declared publicly. While in interface variables and the class is declared publicly

Conclusion

Both interface and the variable is very important in the Java programming language. Interface and Java is quite similar to each other but some differences also exist between them. Class is used to defied the user defined blueprints which assigns the behavior and interface contains only that assigned behavior. Soap and rest also play a big role to communicate and data exchange.

This is all about the difference between Interface and class. We hope you understand the difference very well. To read other informative topics please go through our website. And feel free to comment on us.