How does final modifier work?
- 1 Answers
- 3597 Views
- Tech Mahindra, I also Faced
- E-Mail Answers
Final in java is used to restrict user to change further. It is used in various context as below
Final variable
• As variable become final, its value will never be modified.
• The variables become read only variable forever.
• If final variable is static then it must be initialized at the time of declaration.
• A non-static final variable can be blank but must be initialized in constructor.
• A local variable can be final.
• Final variables usually come with static key word as constant.
Final method
• As method become final, it never be override but be overload.
• A final method can be static and synchronized but never be abstract.
• As we are sure that the method implementation is complete and will never be override then we should make it final.
Final class
• A final class is complete class and will never be sub-classed.
• Final class helps to define immutable class.
• There are some final classes like String, Integer and other wrapper classes.
| Is This Answer Correct ? | 5 Yes | 0 No |
What is run time allocation?
What is final, finally, finalize?
Which are different kinds of source code?
what is the swingutilities.invokelater(runnable) method for? : Java thread
what is net based application and its types
When we serialize an object does the serialization mechanism saves its references too?
how to open and edit XML file in Weblogic???
What if constructor is protected in java?
can used Protected Class outside Function.?
What is the difference between equals() and == in java?
What is the immediate superclass of the Dialog class?
What are uses of Hash Code?
Core Java 
