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Adding Text with a Float number Using String.Format() Method in C#
  • Last Updated : 26 May, 2020

Here the task is to add the text T with a float number F using String.Format() method.

Example :

Input : F = 12.3, T = “abc”
Output : 12abc.abc3

Input : F = 0.0, T = “Geeks”
Output : Geeks0.0Geeks

The text T can be add to a float number F using String.Format() method in a following way:



  • Add text T only to left of integral part of a float number F.
  • Add text T only to right of integral part of a float number F.
  • Add text T only to left of fractional part of a float number F.
  • Add text T only to right of fractional part of a float number F.
  • Add text T to both side of decimal point of a float number F.
  • Add text T to both side of a float number F.

Below is the implementation of the above different ways:

Example 1: Adding text T only to left of integral part of a float number F.

C#




// C# program to add text T 
// only to left of integral 
// part of a float number F.
  
using System;
  
public class GFG{
      
    // function to add text at
    // left of integral part 
    // of a float number.
    static string Add_text(float F, string T)
    {
        // string format
        string s = "{0:";
        s += T;
        s += "0.0}";
          
        // use of String.Format() method
        return String.Format(s, F);
    }
      
    // Main Method
    static void Main(string[] args)
    {
        float F = 12.3f;
        string T = "abc";
          
        //function calling
        string str = Add_text(F, T);
          
        // print the added text float number
        Console.WriteLine(str);
    }
}

Output:

abc12.3

Example 2: Adding text T only to right of integral part of a float number F.

C#




// C# program to add text T 
// only to right of integral 
// part of a float number F.
  
using System;
  
public class GFG{
      
    // function to add text at
    // right of integral part 
    // of a float number.
    static string Add_text(float F, string T)
    {
        // string format
        string s = "{0:0";
        s += T;
        s += ".0}";
          
        // use of String.Format() method
        return String.Format(s, F);
    }
      
    // Main Method
    static void Main(string[] args)
    {
        float F = 12.3f;
        string T = "abc";
          
        // function calling
        string str = Add_text(F, T);
          
        // print the added text float number
        Console.WriteLine(str);
    }
}

Output:

12abc.3

Example 3: Adding text T only to left of fractional part of a float number F.

C#




// C# program to add text T 
// only to left of fractional 
// part of a float number F.
  
using System;
  
public class GFG{
      
    // function to add text at
    // left of fractional part 
    // of a float number F.
    static string Add_text(float F, string T)
    {
        // string format
        string s = "{0:0.";
        s += T;
        s += "0}";
          
        // use of String.Format() method
        return String.Format(s, F);
    }
      
    // Main Method
    static void Main(string[] args)
    {
        float F = 12.3f;
        string T = "abc";
          
        // function calling
        string str = Add_text(F, T);
          
        // print the added text
        // float number
        Console.WriteLine(str);
    }
}

Output:

12.abc3

Example 4: Adding text T only to right of fractional part of a float number F.

C#




// C# program to add text T 
// only to right of fractional 
// part of a float number F.
  
using System;
  
public class GFG{
      
    // function to add text at
    // right of fractional part 
    // of a float number F.
    static string Add_text(float F, string T)
    {
        // string format
        string s = "{0:0.0";
        s += T;
        s += "}";
          
        // use of String.Format() method
        return String.Format(s, F);
    }
      
    // Main Method
    static void Main(string[] args)
    {
        float F = 12.3f;
        string T = "abc";
          
        // function calling
        string str = Add_text(F, T);
          
        // print the added text float number
        Console.WriteLine(str);
    }
}

Output:

12.3abc

Example 5: Adding text T to both side of decimal point of a float number F.

C#




// C# program to add text
// to both side of decimal
// point of a float number
  
using System;
  
public class GFG{
      
    // function to add text at
    // both side of decimal
    // point of a float number
    static string Add_text(float F, string T)
    {
        // string format
        string s = "{0:0";
        s += T;
        s += ".";
        s += T;
        s += "0}";
          
        // use of String.Format() method
        return String.Format(s, F);
    }
      
    // Main Method
    static void Main(string[] args)
    {
        float F = 12.3f;
        string T = "abc";
          
        // function calling
        string str = Add_text(F, T);
          
        // print the added text float number
        Console.WriteLine(str);
    }
}

Output:

12abc.abc3

Example 6: Adding text T to both side of a float number F.

C#




// C# program to add text
// to both side of a float number
  
using System;
  
public class GFG{
      
    // function to add text at
    // both side of a float number
    static string Add_text(float F, string T)
    {
        // string format
        string s = "{0:";
        s += T;
        s += "0.0";
        s += T;
        s += "}";
          
        // use of String.Format() method
        return String.Format(s, F);
    }
      
    // Main Method
    static void Main(string[] args)
    {
        float F = 12.3f;
        string T = "abc";
          
        // function calling
        string str = Add_text(F, T);
          
        // print the added text float number
        Console.WriteLine(str);
    }
}

Output:

abc12.3abc



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