implements IFormattable : IFormattable « System « C# / C Sharp by API

1. C# / C Sharp by API
2. System
3. IFormattable

implements IFormattable

 


using System;
using System.Globalization;

public sealed class ComplexNumber : IFormattable
{
    public ComplexNumber( double real, double imaginary ) {
        this.real = real;
        this.imaginary = imaginary;
    }

    public override string ToString() {
        return ToString( "G", null );
    }

    public string ToString( string format, IFormatProvider formatProvider ) {
        string result = "(" + real.ToString(format, formatProvider) + " " + real.ToString(format, formatProvider) + ")";
        return result;
    }
   
    private readonly double real;
    private readonly double imaginary;
}

public sealed class MainClass
{
    static void Main() {
        ComplexNumber num1 = new ComplexNumber( 1.12345678, 2.12345678 );
        
        Console.WriteLine( "US format: {0}", num1.ToString( "F5", new CultureInfo("en-US") ) );
        Console.WriteLine( "DE format: {0}", num1.ToString( "F5", new CultureInfo("de-DE") ) );
        Console.WriteLine( "Object.ToString(): {0}",num1.ToString() );
    }
}

   
  

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