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

4.12 Increment and Decrement Operators

Java provides two unary operators (summarized in Fig. 4.14) for adding 1 to or subtracting 1 from the value of a numeric variable. These are the unary increment operator, ++, and the unary decrement operator, --. A program can increment by 1 the value of a variable

Fig. 4.13 Arithmetic compound assignment operators.

Assignment operator	Sample expression	Explanation	Assigns
Assume: int c = 3, d = 5, e = 4, f = 6, g = 12;
+=	c += 7	c = c + 7	10 to c
-=	d -= 4	d = d - 4	1 to d
*=	e *= 5	e = e * 5	20 to e
/=	f /= 3	f = f / 3	2 to f
%=	g %= 9	g = g % 9	3 to g

called c using the increment operator, ++, rather than the expression c = c + 1 or c += 1. An increment or decrement ...