To format a float to 2 decimal places in Objective-C you can use the following snippet.
Sample Objective-C
NSString* formattedVariable = [NSString stringWithFormat:@"%.02f", myFloatVariable];
Float
How to convert string to Int or Float in Python
To convert string to Int or Float in Python you can use the following snippet.
Sample Python
NumbertoConvert = "321.1234" print(float(NumbertoConvert)) # prints out 321.1234 print(int(float(NumbertoConvert))) # prints out 321
How to round to X decimal places in C# and VB.NET
To round to X decimal places in C# and VB.NET you can use one of the following methods.
Take a look at the output image to see the results.
Sample ConsoleApp in C#
static void Main(string[] args)
{
decimal input = Decimal.Parse("3,546932");
decimal inputZero = Decimal.Zero;
decimal inputShort = Decimal.Parse("3,545");
decimal inputShorter = 1;
Console.WriteLine("######################################################################");
Console.WriteLine("");
Console.WriteLine("Testinput1:\t{0}", input);
Console.WriteLine("Testinput2:\t{0}", inputZero);
Console.WriteLine("Testinput3:\t{0}", inputShort);
Console.WriteLine("Testinput4:\t{0}", inputShorter);
Console.WriteLine("");
Console.WriteLine("########## using decimal.Round AwayFromZero 2 Decimals ##########");
Console.WriteLine("");
Console.WriteLine("Output 1:\t{0}",decimal.Round(input, 2, MidpointRounding.AwayFromZero));
Console.WriteLine("Output 2:\t{0}", decimal.Round(inputShort, 2, MidpointRounding.AwayFromZero));
Console.WriteLine("Output 3:\t{0}", decimal.Round(inputShorter, 2, MidpointRounding.AwayFromZero));
Console.WriteLine("Output 4:\t{0}", decimal.Round(inputZero, 2, MidpointRounding.AwayFromZero));
Console.WriteLine("");
Console.WriteLine("########## using decimal.Round ToEven 2 Decimals ##########");
Console.WriteLine("");
Console.WriteLine("Output 1:\t{0}", decimal.Round(input, 2, MidpointRounding.ToEven));
Console.WriteLine("Output 2:\t{0}", decimal.Round(inputShort, 2, MidpointRounding.ToEven));
Console.WriteLine("Output 3:\t{0}", decimal.Round(inputShorter, 2, MidpointRounding.ToEven));
Console.WriteLine("Output 4:\t{0}", decimal.Round(inputZero, 2, MidpointRounding.ToEven));
Console.WriteLine("");
Console.WriteLine("########## using .ToString(\"0.00\") 2 Decimals ##########");
Console.WriteLine("");
Console.WriteLine("Output 1:\t{0}", input.ToString("0.00"));
Console.WriteLine("Output 2:\t{0}", inputShort.ToString("0.00"));
Console.WriteLine("Output 3:\t{0}", inputShorter.ToString("0.00"));
Console.WriteLine("Output 4:\t{0}", inputZero.ToString("0.00"));
Console.WriteLine("");
Console.WriteLine("########## using .ToString(\"0.00\") 5 Decimals ##########");
Console.WriteLine("");
Console.WriteLine("Output 1:\t{0}", input.ToString("0.00000"));
Console.WriteLine("Output 2:\t{0}", inputShort.ToString("0.00000"));
Console.WriteLine("Output 3:\t{0}", inputShorter.ToString("0.00000"));
Console.WriteLine("Output 4:\t{0}", inputZero.ToString("0.00000"));
Console.WriteLine("");
Console.Read();
}
Sample ConsoleApp in VB.NET
Private Shared Sub Main(args As String())
Dim input As Decimal = [Decimal].Parse("3,546932")
Dim inputZero As Decimal = [Decimal].Zero
Dim inputShort As Decimal = [Decimal].Parse("3,545")
Dim inputShorter As Decimal = 1
Console.WriteLine("######################################################################")
Console.WriteLine("")
Console.WriteLine("Testinput1:" & vbTab & "{0}", input)
Console.WriteLine("Testinput2:" & vbTab & "{0}", inputZero)
Console.WriteLine("Testinput3:" & vbTab & "{0}", inputShort)
Console.WriteLine("Testinput4:" & vbTab & "{0}", inputShorter)
Console.WriteLine("")
Console.WriteLine("########## using decimal.Round AwayFromZero 2 Decimals ##########")
Console.WriteLine("")
Console.WriteLine("Output 1:" & vbTab & "{0}", Decimal.Round(input, 2, MidpointRounding.AwayFromZero))
Console.WriteLine("Output 2:" & vbTab & "{0}", Decimal.Round(inputShort, 2, MidpointRounding.AwayFromZero))
Console.WriteLine("Output 3:" & vbTab & "{0}", Decimal.Round(inputShorter, 2, MidpointRounding.AwayFromZero))
Console.WriteLine("Output 4:" & vbTab & "{0}", Decimal.Round(inputZero, 2, MidpointRounding.AwayFromZero))
Console.WriteLine("")
Console.WriteLine("########## using decimal.Round ToEven 2 Decimals ##########")
Console.WriteLine("")
Console.WriteLine("Output 1:" & vbTab & "{0}", Decimal.Round(input, 2, MidpointRounding.ToEven))
Console.WriteLine("Output 2:" & vbTab & "{0}", Decimal.Round(inputShort, 2, MidpointRounding.ToEven))
Console.WriteLine("Output 3:" & vbTab & "{0}", Decimal.Round(inputShorter, 2, MidpointRounding.ToEven))
Console.WriteLine("Output 4:" & vbTab & "{0}", Decimal.Round(inputZero, 2, MidpointRounding.ToEven))
Console.WriteLine("")
Console.WriteLine("########## using .ToString(""0.00"") 2 Decimals ##########")
Console.WriteLine("")
Console.WriteLine("Output 1:" & vbTab & "{0}", input.ToString("0.00"))
Console.WriteLine("Output 2:" & vbTab & "{0}", inputShort.ToString("0.00"))
Console.WriteLine("Output 3:" & vbTab & "{0}", inputShorter.ToString("0.00"))
Console.WriteLine("Output 4:" & vbTab & "{0}", inputZero.ToString("0.00"))
Console.WriteLine("")
Console.WriteLine("########## using .ToString(""0.00"") 5 Decimals ##########")
Console.WriteLine("")
Console.WriteLine("Output 1:" & vbTab & "{0}", input.ToString("0.00000"))
Console.WriteLine("Output 2:" & vbTab & "{0}", inputShort.ToString("0.00000"))
Console.WriteLine("Output 3:" & vbTab & "{0}", inputShorter.ToString("0.00000"))
Console.WriteLine("Output 4:" & vbTab & "{0}", inputZero.ToString("0.00000"))
Console.WriteLine("")
Console.Read()
End Sub
OUTPUT
Decimal Place Formatting