== Why is this an issue?

include::../description.adoc[]

include::../howtofix.adoc[]

Alternatively, adding the `static` keyword as class modifier will also prevent it from being instantiated.

=== Code examples

==== Noncompliant code example

[source,csharp,diff-id=1,diff-type=noncompliant]
----
public class StringUtils // Noncompliant: implicit public constructor
{ 
  public static string Concatenate(string s1, string s2) 
  {
    return s1 + s2;
  }
}
----

or

[source,csharp,diff-id=2,diff-type=noncompliant]
----
public class StringUtils // Noncompliant: explicit public constructor
{ 
  public StringUtils()
  {
  }

  public static string Concatenate(string s1, string s2) 
  {
    return s1 + s2;
  }
}
----

==== Compliant solution

[source,csharp,diff-id=1,diff-type=compliant]
----
public static class StringUtils // Compliant: the class is static
{ 
  public static string Concatenate(string s1, string s2) 
  {
    return s1 + s2;
  }
}
----

or

[source,csharp,diff-id=2,diff-type=compliant]
----
public class StringUtils // Compliant: the constructor is not public
{ 
  private StringUtils()
  {
  }

  public static string Concatenate(string s1, string s2) 
  {
    return s1 + s2;
  }
}
----


ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

=== Message

Hide this public constructor by making it ["protected"|"private"].

Add a ["protected"|"private"] constructor or the "static" keyword to the class declaration.

'''

endif::env-github,rspecator-view[]