what is x++ and a+

Question

what is x++ and a+

Answer 1

x++ is equivalent to x+1.
a+ is the grade you would not get in a programming course.

Answer 2

"x++" is equivalent to "x=x+1;".
"a+" is a synthax error.

Answer 3

a+ doesnt exist, because the equivalent to "+1" is for example ++a. (++a use the increase within the following programm, a++ just after the next command is done)

Answer 4

x++ is equivalent to x+1
here a single + is a binary operator, means that a+some other variable
where as ++ is a unary operator ,means only a++