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package

A Java keyword that is used to indicate the package name to which this class belongs. Conceptually, a package is a group of classes with a logically similar purpose.

parameterized type

A generic type, with actual arguments supplied for its type variables . For example, ArrayList<E> is a generic type. You can invoke it as ArrayList<Product> and then that is called the parameterized type.

primitive

A Java primitive is a simple type that evaluates to the single value stored in that variable (as opposed to a reference type, whose value is its memory address). Primitives cannot have methods or hold any other data than their single value. You cannot cast a primitive type to an object reference, or vice versa.

private

A Java keyword used as an access modifier to indicate that this member is not visible to any other class but the one in which it is defined.

process

A space in a virtual addressing system containing one or more threads of execution.

protected

A Java keyword used as an access modifier to indicate that this member is visible only to the class in which it is defined, any subclass of that class, or any class in the same package.

public

A Java keyword used as an access modifier to indicate that this member can be accessed by any other class.