Constants (often referred to as literals) are data items that are fixed data values.
That means a constant is a value that cannot be changed throughout the program.
Kinds of Constants:
- integer-literals
- floating-literals
- Boolean-literals
- character-literals
- string-literals
- the null literal
Note => The keyword ‘final‘ makes a variable as constant.
Syntax:
final data_type variable_name = value;Example:
final double TAXRATE = 0.25;