Operators in Java

Hello readers it's day seven of my learning Java journey and today I will share with you my learning of Operators in java.

As we have symbols in mathematics to perform certain calculation say the plus '+' for addition and so on similarly we have operators in Java to perform either a mathematical or logical manipulation

• Java has four types of operators:- i. Mathematical ii. Logical iii. Relational iv. Bitwise

Mathematical Operators -

• it contains all the symbols that are used in mathematical computation only just be a bit careful with the use of / and %.

Symbol	Function
+	addition
-	subtraction
*	multiplication
/	integer division (returns quotient)
%	modulus (returns remainder)
++	increment
--	decrement

• the increment (++) and decrement (--) operators increase or decrease the value of operands by one.
• it can be used in two ways either prefix or postfix.

Relational and Logical Operators -

• relational and logical operators are used to show decide or compare two operands and they produce result as of type Boolean that is either true or false.

• in case of logiacal operators the operands must be in form of boolean values.

  • Relational Operataors:-

Symbol	Function
>	greater than
<	less than
>=	greater than equal to
<=	less than equal to
==	equal to
!=	not equal to

• Logical Operators:-

Symbol	Function
&	AND
^	XOR
&&	SHORT-CIRCUIT AND
!	NOT

• the difference between normal and short-circuit logical operators is that normal ones evaluate each operand but in case of short-circuit they only evaluate the second condition of necessary
• the short-circuit operators are also known as conditional-and and conditional-or operators.

Assignment Operator -

• it is used for assigning values to variables.
• it is represented by normal '=' sign and should not be confused with '==' of relational operators.

• java also allows you to make a chain of assignments that is to make them get a common value.
  

   int a, b, c;
   a = b = c =1;
  

Shorthand Assignment -

• it is used to simplify the coding convention and save some time. for example-

  x = x + 10;
can be re-written as 
  x += 10;