Ever wonder why Java's const keyword is unimplemented? More specifically, why do we mark global constants in Java with both the static and final keywords? Why are Java constants static and final? The ...

Other types of variables in Java There are other ways you can categorize variables in Java, and other ways you can manipulate data. For instance, a constant is a variable whose value never changes.

Learn how computers use variables with this KS2 primary computing guide from BBC Bitesize for years 3 and 4.