Reference

A reference value points to a sequence of memory locations that may contain an object or array.

Related concepts:  ValueTypeObjectArrayPrimitive

Closest Wikipedia entry:  Reference (computer science) — In computer programming, a reference is a value that enables a program to indirectly access a particular datum, such as a variable's value or a record, in the computer's memory or in some other storage device. The reference is said to refer to the datum, and accessing the datum is called dereferencing the reference. A reference is distinct from the datum itself.

Misconceptions about Reference

29 documented Misconceptions

AssignmentCopiesObject

Assignment copies the object

ConstReferenceImpliesImmutability

An object referred to by a const variable is an immutable object

EqualityOperatorComparesObjectsValues

The equality operator compares two objects' values

NullIsObject

null is an object

ObjectAsParameterIsCopied

Objects are passed by value

ThisAssignable

One can assign to this