What's wrong with this code ?

Question

Edit : Why does this code loop the true.
https://code.sololearn.com/cf6WrHQR8L01/?ref=app

Answer 1

Main is void function, you write return statement in main for what purpose.. It's an error..
If you mean for output, write like this..

if (char.IsNumber(e) || convert[e] <= 1 || convert[e] >= 0)
{
Console.WriteLine(true);
}
else
{
Console.WriteLine(false);
}

Answer 2

It worked jayakrishna, thanks. But the foreach loop loops the true output with number of characters. How do I solve that ?.

Answer 3

What you are trying..? What is your required output..?
Edit:
Also
convert [e] is not works.. Because there e is charecter either '0' or '1'. convert[e] means convert[48] or convert[49], indexoutofbounds exception..
Write just e=='1' , e=='0'

Answer 4

Jayakrishna, thanks again.

Answer 5

Its true because char.isNumber(e) is always true..

For a single true or false.. Like this:

static void Main(string[] args)
{
string input = "101101";
char[] convert = input.ToCharArray();
bool b=true;
foreach (var e in convert)
{
if(char.IsNumber(e) && (e == '1' || e == '0'))
{
continue;
}
else
{
b=false;
break;
}
}
Console.WriteLine(b);
}

And Joseph Oritseweyinmi
you're welcome ...