Difference Between Static vs. Final in Java

Main Difference

The difference between static and final in java is that static is a keyword in java that is used to define the class member that can be used independently of any object of class whereas final keyword in java is used to declare a constant variable that cannot be overridden and a class that cannot be inherited.

Static vs. Final in Java

Java is an object-oriented programming language that uses both compiler and interpreter. Mostly all software’s are made in Java programming language. Java code can be written on Windows, Linux, and Mac OS. The syntax of C and C++ programming language is quite the same. Java produces browser to run programs that help in making a graphical user interface. Java programming language is in used and trend these days. To write Java code, a programmer needs software development kit (SDK) that includes a compiler, interpreter that is not required in C++. There are many keywords that are used in Java such these keywords are static and final. If a variable is a static variable, then it can be accessed before the class object that is created. Final is a keyword that has a different effect on class, methods, and variables. The basic difference between static and final in java is that static is a keyword in java that is used to define the class member that can be used independently of any object of class whereas final keyword in java is used to declare a constant variable that cannot be overridden and a class that cannot be inherited.

In java, static is a keyword that is applicable to the classes, variables, methods, and blocks. We have to use the keyword “static” to make class members like class and block static. You have to use the word static before these class members. Like static final is also a keyword that is used to a class, variable and methods. Using the keyword “final” class, variable and the methods are declared as a final keyword.If a class member is static, then this class member can become global for all the members of the class. There is no memory on per instance basis that is all the objects have to share the same copy of static member. Static member in code is independent of the object of the class. A static member is accessed before the object in the class is created. Main()method is the example of static member this is static because it can be used before any object exits. Class_name_static_member is a general to access the static member of the class. For all the other data member of the class static variable acts like a global variable. You cannot modify a variable as a program after you make a program. You have to declare the final variable before the time of declaration. Final variables do not have space on memory like per-instance basisThere is a need to access static variable before any object of the class. Dot(.) operator is used to access the static variable. Only one copy is created, and all the final variable share the same copy of the final variable. By the subclass of the class, the method cannot be declared as final and cannot be overridden. Inheritance is not allowed in the final class. Final keyword is only used in java and is not supported as C++ and C#. The methods of static keywords can only call another static method. Static data can access the static method. Java does not support the concept of static class only outer class can access static class.

Comparison Chart

StaticFinal
Static is a keyword in java that is used to define the class member that can be used independently of any object of classFinal keyword in java is used to declare a constant variable that cannot be overridden and a class that cannot be inherited.
Modification
Static variable cannot be modified.A final variable can be modified
Class
A static class object cannot be createdA final class object can be created
Block
Static block is supported in static keywordThe final block is not supported in the final keyword

What is static?

In java, static is a keyword that is applicable to the classes, variables, methods, and blocks. We have to use the keyword “static” to make class members like class and block static. You have to use the word static before these class members. If a class member is static, then this class member can become global for all the members of the class. There is no memory on per instance basis that is all the objects have to share the same copy of static member. Static member in code is independent of the object of the class. A static member is accessed before the object in the class is created. Main()method is the example of static member this is static because it can be used before any object exits. Class_name_static_member is a general to access the static member of the class. For all the other data member of the class static variable acts like a global variable. There is a need to access a static variable before any object of the class. Dot(.) operator is used to access the static variable. The methods of static keywords can only call another static method. Static data can access the static method. Java does not support the concept of static class only outer class can access static class.

What is final?

Like static final is also a keyword that is used to a class, variable and methods. Using the keyword “final” class, variable and the methods are declared as a final keyword. You cannot modify a variable as a program after you make a program. You have to declare the final variable before the time of declaration. Final variables do not have space on memory like per-instance basis. Only one copy is created, and all the final variable share the same copy of the final variable. By the subclass of the class, the method cannot be declared as final and cannot be overridden. Inheritance is not allowed in the final class. Final keyword is only used in java and is not supported as C++ and C#.

Key Differences

  1. Static is a keyword in java that is used to define the class member that can be used independently of any object of class whereas final keyword in java is used to declare a constant variable that cannot be overridden and a class that cannot be inherited.
  2. A static variable cannot be modified whereas the final variable can be modified.
  3. A static class object cannot be created whereas a final class object can be created whereas a final class object can be created,
  4. Static block is supported in static keyword whereas the final block is not supported in the final

Explanatory Video

Conclusion

In this article, we study the difference between static and final in java. Static is a keyword in java that is used to define the class member that can be used independently of any object of class whereas final keyword in java is used to declare a constant variable that cannot be overridden and a class that cannot be inherited. After reading this article, you will the clear concept of static and final in java.

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Author:

Harlon Moss

Harlon currently works as a quality moderator and content writer for Turpy Media. He graduated from the University of California in 2010 with a degree in Computer Science. Follow him on Twitter @HarlonMoss or on Pinterest @HarlonMoss

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