Java How to Program (early objects), 9/e

2.7 Arithmetic

Most programs perform arithmetic calculations. The arithmetic operators are summarized in Fig. 2.11. Note the use of various special symbols not used in algebra. The asterisk (*) indicates multiplication, and the percent sign (%) is the remainder operator, which we’ll discuss shortly. The arithmetic operators in Fig. 2.11 are binary operators, because each operates on two operands. For example, the expression f + 7 contains the binary operator + and the two operands f and 7.

Fig. 2.11 Arithmetic operators.

Java operation	Operator	Algebraic expression	Java expression
Addition	+	f + 7	f + 7
Subtraction	–	p – c	p - c
Multiplication	*	bm	b * m
Division	/	x/y or $\frac{\mathit{x}}{\mathit{y}}$ or x ÷ y	x / y
Remainder	%	r mod s	r % s