Question

Why the output is not what I want to…

Here’s the code:

int num;
Console.WriteLine("Please input age: ");
num = Console.Read();
Console.WriteLine(num);

For example I input 5, the output is 53. It needs to be 5, what is happening on the code. Can somebody explain? Thank you.

Answer 1

Because Console.Read() returns the character code of the next character in the stream. The ASCII character code of ‘5’ is 53.

You need to read the whole line as a string

string str = Console.Readline();

and then Parse() it or TryParse() it.

 int num;
 try
 {  
     num = int.Parse(str);
 }
 catch(Exception e)
 {
     Console.Writeline("Not a number!");
 }