Compound assignment operators in Java

Java Programming Java8Object Oriented Programming

The Assignment Operators

Following are the assignment operators supported by Java language −

Operator
Description
Example
=
Simple assignment operator. Assigns values from right side operands to left side operand.
C = A + B will assign value of A + B into C
+=
Add AND assignment operator. It adds right operand to the left operand and assigns the result to left operand.
C += A is equivalent to C = C + A
-=
Subtract AND assignment operator. It subtracts the right operand from the left operand and assigns the result to left operand.
C -= A is equivalent to C = C � A
*=
Multiply AND assignment operator. It multiplies right operand with the left operand and assigns the result to the left operand.
C *= A is equivalent to C = C * A
/=
Divide AND assignment operator. It divides the left operand with the right operand and assigns the result to left operand.
C /= A is equivalent to C = C / A
%=
Modulus AND assignment operator. It takes modulus using two operands and assigns the result to left operand.
C %= A is equivalent to C = C % A
<<=
Left shift AND assignment operator.
C <<= 2 is same as C = C << 2
>>=
Right shift AND assignment operator.
C >>= 2 is same as C = C >> 2
&=
Bitwise AND assignment operator.
C &= 2 is same as C = C & 2
^=
bitwise exclusive OR and assignment operator.
C ^= 2 is same as C = C ^ 2
|=
bitwise inclusive OR and assignment operator.
C |= 2 is same as C = C | 2

Example

Live Demo

public class Test {

   public static void main(String args[]) {
      int a = 10;
      int b = 20;
      int c = 0;

      c = a + b;
      System.out.println("c = a + b = " + c );

      c += a ;
      System.out.println("c += a  = " + c );

      c -= a ;
      System.out.println("c -= a = " + c );

      c *= a ;
      System.out.println("c *= a = " + c );

      a = 10;
      c = 15;
      c /= a ;
      System.out.println("c /= a = " + c );

      a = 10;
      c = 15;
      c %= a ;
      System.out.println("c %= a  = " + c );

      c <<= 2 ;
      System.out.println("c <<= 2 = " + c );

      c >>= 2 ;
      System.out.println("c >>= 2 = " + c );

      c >>= 2 ;
      System.out.println("c >>= 2 = " + c );

      c &amp;= a ;
      System.out.println("c &amp;= a  = " + c );

      c ^= a ;
      System.out.println("c ^= a   = " + c );

      c |= a ;
      System.out.println("c |= a   = " + c );
   }
}

This will produce the following result −

Output

c = a + b = 30
c += a  = 40
c -= a = 30
c *= a = 300
c /= a = 1
c %= a  = 5
c <<= 2 = 20
c >>= 2 = 5
c >>= 2 = 1
c &amp;= a  = 0
c ^= a   = 10
c |= a   = 10
raja
Published on 23-Jul-2018 11:37:19
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