/* Right, Wrong */
using System;

class IfDemo {

  public static void Main(){
    int i = 0;

    /*  
    if (i){    
      Console.WriteLine("i is regarded as true");
    }
    else {
      Console.WriteLine("i is regarded as false");
    }    
    */
    
    if (i != 0){    
      Console.WriteLine("i is not 0");
    }
    else {
      Console.WriteLine("i is 0");
    }    
  }      
}

 
 
 
 
 
 
 
 
 
Illegal:  Cannot implicitly convert type 'int' to 'bool'
 
 
 
 
 
 
 
The type of the expression i != 0 is boolean