cannt implicitly convert int to bool

Question

The problem is with line 19. i thought it was the while statement but just noticed its line 19. I've tried various things and i can't find the solution to my error.

using System;

class MainClass {
  public static void Main (string[] args) {
      Random r = new Random();
      int Randomnum= r.Next(0,100);
      int x = 0;

      while(x != Randomnum){
          x = Convert.ToInt32(Console.ReadLine()); 

          if (x < Randomnum)
          Console.WriteLine("higher");

          if (x > Randomnum)
          Console.WriteLine("lower");
       
          if (x = Randomnum)
          Console.WriteLine("corrct!");
      }
  }
}

Last conditional has a single `=` (assignment) instead of double `==` (comparison) — Diado, Oct 01 '20 at 12:03
its fine! i didn't notice that myself, thanks. i don'r understand why one 19 is being weird though. the other 2 if statements work fine but not if x = randomnum :/ — Oliver Sharp, Oct 01 '20 at 12:10
@OliverSharp because `x = Randomnum` is an assignment. And an assignment in c# always returns the assigned value. In your case an integer, which cannot be used as condition in an `if` clause. You want `x == Randomnum` (double ==) which is the operator for comparison — derpirscher, Oct 01 '20 at 12:26

score 2 · Answer 1 · answered Oct 01 '20 at 12:22

Looks like you have a syntax issue like Nauman mentioned. The Equality Operator (==) is the comparison operator, checking if their operands are equal or not and the Equals(=) compares the contents of a string. The == Operator compares the reference identity while the = method compares only contents.

Change if (x = Randomnum) to if (x == Randomnum) and it should work.

score 0 · Answer 2 · answered Oct 01 '20 at 12:11

0

Its syntax issue if (x = Randomnum) use double equal for comparison if (x == Randomnum) single equal is for assignment that's why if condition doesn't receive bool value and its showing this error.

answered Oct 01 '20 at 12:11

Nauman Asghar

111
10

cannt implicitly convert int to bool

2 Answers2