To make any variable a constant, we must use 'static' and 'final' modifiers in the following manner: Syntax to assign a constant value in java: static final datatype identifier_name = constant; The static modifier causes the variable to be available without an instance of it's defining class being loaded.
How do you declare a constant in Java?
How To Declare a Constant in Java
- To turn an ordinary variable into a constant, you have to use the keyword "final."
- As a rule, we write constants in capital letters to differentiate them from ordinary variables.
- If you try to change the constant in the program, javac (the Java Compiler) sends an error message.
What is the best way to define constants in Java?
- If you have access to Java 5+, use enums to define your specific constants for an application area. ...
- If you have constants that are only valid to a particular class or one of its subclasses, declare them as either protected or public and place them on the top class in the hierarchy.
