Classes, fields, methods, constructors, and objects are the building blocks ... 3.0, 4.0 }); Java 5 introduced a variable arguments (varargs) feature to reduce the clutter when passing an array ...

Developers use variables in Java to hold data ... Instances are the actual objects that you create from the blueprint you design in the class definition. You declare instance variables in the ...

that object is reachable by the running Java program. Because those objects are accessible through some reference variable within the Java program, they could, from the JVM's point of view, be ...

That means instance variables are assigned as follows: The class in this example only defines properties. It contains no explicitly defined Java constructors. When no explicitly defined constructors ...