Operators

• Operators are the special symbols such as + or *.

  +	addition with numerical values, concatenation with Strings
  -	subtraction
  *	multiplication
  /	division (integer or floating-point)
  %	modulus/remainder
  ++	increment by 1
  --	decrement by 1

  
  
• Learning the rules of precedence is not a bad idea (see your book), but when in doubt, use parentheses.