Java™ How To Program (Early Objects), Tenth Edition

Section 4.12 Compound Assignment Operators

• The compound assignment operators (p. 131) abbreviate assignment expressions. Statements of the form

variable = variable operator expression;

where operator is one of the binary operators +, -, *, / or %, can be written in the form

variable operator= expression;

• The += operator adds the value of the expression on the right of the operator to the value of the variable on the left of the operator and stores the result in the variable on the left of the operator.