Answer Posted / javamasque
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 |
Post New Answer View All Answers
how to split string in java?
What is a lightweight component?
What is difference between filereader and bufferedreader?
When will we prefer to use set and list in java and why?
What are the advantages of java over C++?
What is jee6?
Can we sort set in java?
Does it matter in what order catch statements for filenotfoundexception and ioexception are written?
Is it possible to instantiate the abstract class?
Is 0 true or false?
What is integers and example?
How to create a base64 decoder in java8?
Which is faster set or list in java?
What is a boolean in java?
What does math floor () do?