**Operands**

*O**perators*
operate on *operands*.

For example, in the following expression, the
**plus (+) character** is an operator while **x** and **y** are
operands.

`x + y`

Assuming that **x** and **y** are
numeric primitive variables, this expression produces the sum of the values
stored in the two variables.

The variable **x** would be called the *
left operand* and the variable **y** would be called the *right operand.*