Increment and Decrement Operator:-
    

Increment Operator(++) :-
                    ++ is called increment operator and it is increases the
variable by '1'(one).
Java is supported to two types of increment operators:-
1) pre increment operator
2) post increment operator 
 
Pre increment operator:
   The ++ is placed before the variable then it is called pre increment operator.
Eg:- ++a, ++s

Post increment operator:
   The ++ is placed after the variable then it is called pre increment operator.
Eg:- a++, b++

Decrement Operator(++) :-
                      -- is called decrement operator and it is decreases the
variable by '1'(one).
Java is supported to two types of increment operators:-
1) pre increment operator
2) post increment operator 
 
Pre decrement operator:
   The -- is placed before the variable then it is called pre increment operator.
Eg:- --a, --s

Post decrement operator:
   The -- is placed after the variable then it is called pre increment operator.
Eg:- a--, b--