[FIXED] How do I add an integer to a string using Console.WriteLine?

Issue

I'm currently writing a program in C# and I'm practicing using integers. I'm trying to make it so the written line comes out with the int at the end. It doesn't give me the outcome I want though, and when I searched on Google it didn't give me the solution I was looking for.

Code:

Random rnd = new Random();
int Pi = rnd.Next(1,5); 

Console.WriteLine("Checking 'Pi' value...");
Console.Beep(37,1000);
Console.WriteLine("Pi value found. Pi = ",Pi);
Console.ReadKey(); 

Outcome:

Checking 'Pi' value...
Pi value found. Pi =

If you know anything I can try, please let me know.

Solution

There are many ways to do this:

// placeholder
Console.WriteLine("Pi value found. Pi = {0}",Pi);

// concatenation
Console.WriteLine("Pi value found. Pi = " + Pi.ToString());

// interpolation
Console.WriteLine($"Pi value found. Pi = {Pi}");

// StringBuilder
var sb = new StringBuilder("Pi value found. Pi = ").Append(Pi);
Console.WriteLine(sb);

// multiple writes
Console.Write("Pi value found. Pi = ");
Console.WriteLine(Pi);

Answered By - Joel Coehoorn

Answer Checked By - David Goodson (PHPFixing Volunteer)