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Formatted string literals in C#
To format string literals in C#, use the String.Format method.
In the following example, 0 is the index of the object whose string value gets inserted at that particular position −
using System; namespace Demo { class Test { static void Main(string[] args) { decimal A = 15.2 m; string res = String.Format("Temperature = {0}°C.", A); Console.WriteLine(res); } } }
In the following example, let us format string for double type.
Example
using System; class Demo { public static void Main(String[] args) { Console.WriteLine("Three decimal places..."); Console.WriteLine( String.Format("{0:0.000}", 987.383)); Console.WriteLine( String.Format("{0:0.000}", 987.38)); Console.WriteLine(String.Format("{0:0.000}", 987.7899)); Console.WriteLine("Thousands Separator..."); Console.WriteLine(String.Format("{0:0,0.0}", 54567.46)); Console.WriteLine(String.Format("{0:0,0}", 54567.46)); } }
Output
Three decimal places... 987.383 987.380 987.790 Thousands Separator... 54,567.5 54,567
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