Variables

You can convert strings containg numbers to actual numbers using the various Parse(), or TryParse(), methods. For example:

string s1  =  "1234";

int  i = int.Parse(s1); // i now contains the integer 1234

string s2 = "567.89";

double d  =  double.Parse(s2) // d now contains the floating point number 567.89

To convert numbers to strings you can either use the appropriate ToString() method or the Convert.ToString() method. For example:

int j  = 43;

string s3 = j.ToString(); // s3 now contains the string "43"

string s4 = Convert.ToString(j);  // s4 also contains the string "43"