Empty String

In this chapter you will learn:

1. Empty string vs null string
2. String length for empty string

Empty string vs null string

string is a reference type therefore we can assign null to string variable.

using System;//from j a  v a2s .  c o  m

class Sample
{
    public static void Main()
    {

      string s = null;

    }
}

Empty string is a string with no characters.

The length of an empty string is 0.

Empty string is not null string.

using System;//from   j a v a 2 s.c o m

class Sample
{
    public static void Main()
    {

      string s = "";
      Console.WriteLine(s.Length);
    }
}

The output:

String length for empty string

From the code above we can see that the length of a empty string is 0. We cannot check the Length property on an empty string.

using System;//  ja  v a  2s .  co m

class Sample
{
    public static void Main()
    {

      string s = null;
      Console.WriteLine(s.Length);
    }
}

The output:

Next chapter...

What you will learn in the next chapter:

1. Compare two DateTimeOffset values for equality
2. How to use EqualsExact method to compare DateTimeOffset
3. Compare method

string

String creation

Char in string

Compare strings

String equality

String concatanation

String copy

String Join

String split

String Search for Index

String contains

String start with

String insert

String case

Replacing substring

Remove from a string

Substring

Escape Characters

String verbatim

String padding

Switch on String

String trim

String intern

String normalization

Empty String