Expression

Result

A = B

Value of B is assigned to A.

A += B

Same as A = A + B

A -= B       

Same as A = A - B

A *= B       

Same as A = A * B

A /= B

Same as A = A / B

A++

A + 1 (result is A before adding 1)

++A

A + 1 (result is A after adding 1)

A--

A - 1 (result is A before subtracting 1)

--A

A - 1 (result is A after subtracting 1)