plzz tell me...how can this do? and what is the out put and why this out put..? I can't understand..

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoloLearn
{
class Person
{ private static int a=b++;
private static int b=++c;
private static int c=3;
public Person (){
Console.Write(a+":"+b+":"+c);
}

static void Main(){
Person P = New Person ();
}

}
}

Answer 1

I'm not sure but I think you have to declare c first, then b and then a. Because the compiler reads from the top to the bottom and you cant use the variable b before it is defined.
So if it is
c = 3;
b = ++c;
a = b++;
c will be 4, b will be 5 and a will be 4 in the end.

The difference between x++ and ++x is that if you assign an other variable the value of x and use the so called post-increment (x++), like you did with a = b++, x, or in your case b, will be incremented after it got used, so that a would actually be b, but then b gets incremented so that b is a+1. If you use the pre-increment (++x), x gets incremented right before using it. So if you write b = ++c, then C gets incremented immediately before asigning the value to be. So if c = 3 and you do b = ++c, then both b and c will be 4 because you incremented c before using it.