5
String Handling, continued
lStringBuilder – preallocates memory and appends string
segments into that
memory, much faster than repeated use of string=string+newString
/* build string representing contents of a string[]
array */
private string ArrayToString(string[] array)
{
StringBuilder
Output=new StringBuilder(1000);
int
i;
if
(array.Length==0) return "";
for
(i=0;i<array.Length;i++)
Output.Append("\",\""+array[i].ToString());
return
"("+Output.ToString().Substring(2)+"\")";
}
lFormatting values into strings:
String.Format("Format {0,10:E} and {0,8:F} of pi
and e:", System.Math.PI,
System.Math.E);