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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