Final Keyword in Java

Final Variable:
Final variables can be declared using final keyword.
Once created and initialized, its value can not be changed.

final <datatype> <variable>=<value>;

public class FinalVariable {
        public static void main(String[] args) {
                final int hoursInDay=24;
                //This statement will not compile. Value can't be changed.
                System.out.println("Hours in 5 days = " + hoursInDay * 5);

Output :
Hours in 5 days = 120