1.3.1.0.1 Numeric Constants

Java interprets unadorned integer constants as values of type int. Long integer constants are indicated by attaching the suffix L to the number. For example, the constant 9223372036854775807L can be used in Java program text, while the same constant without the L is an error because it is too big to be an int. The double type is the default type for any floating point constant. On modern machines, there is little reason to use the less precise float.