Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

Declaring and initializing variables with jshell. The Java Shell makes it easy to practice with variable declaration and initialization, as you can see in the examples below (note that semicolon ...

The default constructor in Java takes no arguments -- it simply initializes reference types to null and primitive types to the binary equivalent of zero. That means instance variables are assigned as ...