In java final is a keyword or reserved word and can be applied to variables, methods, classes etc. The reason behind final keyword is to make entity non modifiable. It means when you make a variable or class or method as final you are not allowed to change that variable or class or method and compiler will verify this and gives compilation error if you try to re-initialized final variables in java.
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- In this tutorial, we will learn about Java final variables, methods and classes with examples. In Java, the final keyword can be used while declaring an entity.
- Java provides us with three important keywords — ‘final’, ‘finally’, and ‘finalize’. Although they may appear similar, they serve very different purposes in the Java...
- In Java, the final keyword is used to indicate that a variable, method, or class cannot be modified or extended. Here are some of its characteristics
- ExampleGet your own Java Server. Set a variable to final, to prevent it from being overridden/modified: public class Main { final int x = 10
- When we design a class and feel that a method shouldn’t be overridden, we can make this method final. We can also find many final methods in Java core libraries.
- Java final keyword is a non-access modifier that provides few restrictions or limitations to the user. In other words, when we use the keyword final...
- You can use the final keyword with variables, methods, and classes in Java. You can use the final modifier with variables to make them constant.
- If we look at the code of Java core libraries, we’ll find many final classes there. For example String, Wrapper classes and BigDecimal, BigInteger etc.
- In other words, we are talking about the final version of the method. The class as a whole can also be marked as final. final Java methods and classes - 1.