C# String Theory—String fields and properties

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C# String Theory Introduction § String Class § Fields and properties Constructors Operators String Manipulation § StringBuilder Class § String Performance Optimization § String Tips and Tricks §

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Contents 1 String fields and properties 1.1 Empty field 1.2 Chars property 1.3 Length property

String fields and properties

The String class has one public field and two properties which you will find useful.

Empty field

String.Empty is a read-only field which represents the empty string. The value of Empty is the zero-length string, i.e., "".

string teststring = null;
if (teststring != null) {
   return teststring;
   }
return String.Empty;

Chars property

The Chars accessor returns the character at a specified character position in the instance. This property is the indexer for the String class. The index parameter is zero-based.

string hexString = "C0C0BABE";
for (int i = 0; i < hexString.Length; i ++) { 
   Console.Write (hexString[i]);            // indexer
   }

Note: a Unicode character may be represented by more than one Char. In such a case, use the System.Globalization.StringInfo class to work with each individual Unicode character instead of each Char.

Length property

Length property returns the number of characters in this instance.

Console.WriteLine ( ("The length of a film should be directly"
   + " related to the endurance of the human bladder.").Length ); // "86"