The incrementing operator is ++.
the decrementing operator is --.
The incrementing and decrementing operators are unary and can only be used for simple variables.
Their effect is increasing (respectively decreasing) by 1 the operand’s value.
These operators can be used as before the operand, in this case the incrementing/decrementing takes place and then the value of the operand is used, or after the operand and the value is firstly used and then it’s incremented/decremented.