Types of variable in Java A variable that contains a whole number, as in the previous examples, is called an “integer” or “int” for short. However, this is just one type of variable in Java.

Java SE 10 (March 2018) introduced type inference for local variables. Java Language Architect Brian Goetz explains the feature.

Java SE 10 introduced var as the type of a local variable declaration and a lambda formal parameter. The compiler treats var as an identifier with special meaning, but it isn’t considered to be ...