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Single.ToString Method in C# | Set - 1

Last Updated : 11 Jul, 2025
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Single.ToString() Method is used to convert the numeric value of the current instance to its equivalent string representation. There are 4 methods in the overload list of this method as follows:
  • ToString(String) Method
  • ToString() Method
  • ToString(IFormatProvider) Method
  • ToString(String, IFormatProvider) Method
Here, we will discuss the first two methods.

ToString(String) Method

This method is used to convert the numeric value of the current instance to its equivalent string representation, using the specified format.
Syntax: public string ToString (string format); Here, it takes a numeric format string. Return Value: This method returns the string representation of the value of the current instance as specified by format. Exceptions: This method throws FormatException if format is invalid.
Example 1: csharp 
// C# program to demonstrate the // Single.ToString(String) Method using System; class GFG {  // Main Method  public static void Main()  {  try {  // Declaring and initializing value  float value = 565998.1564f;  // Declaring and initializing format  string s = "E04";  // using the method  string str = value.ToString(s);  // Display the value  Console.WriteLine("String value is {0}", str);  }  catch (FormatException e)   {  Console.WriteLine("Format is invalid.");  Console.Write("Exception Thrown: ");  Console.Write("{0}", e.GetType(), e.Message);  }  } }
Output: 
 String value is 5.6600E+005
Example 2: For FormatException csharp 
// C# program to demonstrate the // Single.ToString(String) Method using System; class GFG {  // Main Method  public static void Main()  {  try {  // Declaring and initializing value  float value = 1623325.62412f;  // Declaring and initializing format  string s = "a";  // using the method  string str = value.ToString(s);  // Display the value  Console.WriteLine("String value is {0}", str);  }  catch (FormatException e)  {  Console.WriteLine("Format is invalid.");  Console.Write("Exception Thrown: ");  Console.Write("{0}", e.GetType(), e.Message);  }  } }
Output: 
 Format is invalid. Exception Thrown: System.FormatException

ToString() Method

This method is used to convert the numeric value of the current instance to its equivalent string representation.
Syntax: public override string ToString (); Return Value: This method returns a string which represents the value of this instance.
Below programs illustrate the use of Single.ToString() Method: Example 1: csharp 
// C# program to demonstrate the // Single.ToString() Method using System; class GFG {  // Main Method  public static void Main()  {  // Declaring and initializing value  float value = 792759354.39503305f;  // using ToString() method  string res = value.ToString();  // Display the value  Console.WriteLine("String value is {0}", res);  } }
Output: 
 String value is 7.927594E+08
Example 2: csharp 
// C# program to demonstrate the // Single.ToString() Method using System; using System.Globalization; class GFG {  // Main Method  public static void Main()  {  // calling get() method  get(Single.MaxValue);  get(Single.MinValue);  get(40f);  get(424967295.5858f);  }  // defining get() method  public static void get(float value)  {  // using ToString() method  string res = value.ToString();  // Display the value  Console.WriteLine("String value is {0}", res);  } }
Output: 
 String value is 3.402823E+38 String value is -3.402823E+38 String value is 40 String value is 4.249673E+08
Reference:

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