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C# String.ToUpperInvariant Method
The String.ToUpperInvariant() method in C# is used to return a copy of this String object converted to uppercase using the casing rules of the invariant culture.
Syntax
The syntax is as follows -
public string ToUpperInvariant ();
Example
Let us now see an example -
using System; using System.Text; public class Demo { public static void Main(String[] args) { string str1 = "one"; string str2 = "TWO"; string str3 = "ThrEE"; Console.WriteLine("String 1 = "+str1); Console.WriteLine("String1 ToUpperInvariant = "+str1.ToUpperInvariant()); Console.WriteLine("String 2 = "+str2); Console.WriteLine("String2 ToUpperInvariant = "+str2.ToUpperInvariant()); Console.WriteLine("String 3 = "+str3); Console.WriteLine("String3 ToUpperInvariant = "+str3.ToUpperInvariant()); } }
Output
String 1 = one String1 ToUpperInvariant = ONE String 2 = TWO String2 ToUpperInvariant = TWO String 3 = ThrEE String3 ToUpperInvariant = THREE
Example
using System; public class Demo { public static void Main(String[] args) { string str1 = "abcd"; string str2 = "PQRS"; Console.WriteLine("String 1 = "+str1); Console.WriteLine("String1 ToUpperInvariant = "+str1.ToUpperInvariant()); Console.WriteLine("String 2 = "+str2); Console.WriteLine("String2 ToUpperInvariant = "+str2.ToLowerInvariant()); } }
Output
String 1 = abcd String1 ToUpperInvariant = ABCD String 2 = PQRS String2 ToUpperInvariant = pqrs
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