Arithmetic Operators

+ (addition)
- (subtraction)
* (multiply)
/ (division)
% (modulus)
++ (increment) x++  x = x + 1;
-- (decrement) x--  x = x – 1;

Lets See a program:
class test
{
public static void main (String args[])
{
byte b = 12 * 6;
System.out.println (b);

int i1 = 12 + 13;
System.out.println (i1);

int i2 = 12 - 13;
System.out.println (i2);

int i3 = 12 / 13;
System.out.println (i3);

double d = 12d / 13d;
System.out.println (d);

int i4 = 12 % 3;
System.out.println (i4);

int i5 = 12 % 5;
System.out.println (i5);

}
}

Result is

72
25
-1
0
0.9230769230769231
0
2


Shortcut Operators

k = k + 2  k += 2
k = k – 2  k -= 2
k = k * 2  k *= 2
k = k / 2  k /= 2
k = k % 2  k %= 2