Which keyword is used to declare a constant variable in Java?*1 pointvarconstfinalstatic

The correct keyword used to declare a constant variable in Java is final.

In Java, when you declare a variable with the final keyword, it signifies that the variable's value cannot be modified once it has been assigned. This implies that the variable is treated as a constant. For example, if you declare:

final int MAX_VALUE = 100;

In this case, MAX_VALUE can be used throughout the class, but if you try to change it later, you will receive a compilation error.

Overall, when you want to ensure that a variable retains a single immutable value, using final is the appropriate approach in Java.