++a,a++,--a,a-- means

Question

int a=6;
b=++a
console.writeline(b)
ans plzz and why

Answer 1

a++ get (a) value before increment a. ++a get (a+1) before increment a. In both, the result of a=a+1. Example a = 6; Print(a++) output 6, and Print(++a) output 7. After a = 7

Answer 2

++a means pre increment, here the value of a is increment by 1.
a++ means post increment, here the value of a=a+1.
same thing happen with --a,a--

Answer 3

b = a++

//6 will become value before incrementation

b = ++a

//7 becomes value after incrementation

Same goes for a-- and --a

b = a--

//6

b = --a

//5