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How do you convert c++ to c# the old fashioned way

Shibitto (27)
I have a assignment, (well tones really) but the problem is, I don't understand C# no really, I have no idea how to request input from the user at what given time, I thought the transition from some aspects of c++ would be easy but unfortunately Its not, even the most basic things, i can use a converter but I'm totally unsure why c# giving me grief.

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#include <iostream>
#include <iomanip>
#include <string>

using namespace std;
/*
Runs with out any hassles
*/

int main()

	{

        std::cout<<"Currency converter"<<std::endl;
	 // Declared variables
         double Au = 0.8, Us = 1.0;
	 double output1, input1, input2,  output2;
	 std::cout << "--------------------- "<<std::endl;
	 std::cout <<"Au to Us: $"<<std::flush;
	 cin >> input1;
	 output1 = Au / Us * input1;
	 output1 = Us / Au * input1;
	 
	 std::cout << "--------------------- "<<std::endl;
	 std::cout <<"$1 Aud to Us is $"<<output1<<std::endl;
	 std::cout << "--------------------- "<<std::endl;
	 std::cout <<"Us to Au: $"<<std::flush;
	 cin >> input2;
	 output2 = Us / Au * input2;
	 output2 = Au / Us * input2;  
	 std::cout << "--------------------- "<<std::endl;
	 std::cout << "$1 Us to Au is $"<<output2<<std::endl;
	 std::cout << "--------------------- "<<std::endl;
	     
		
	return 0;
}
//////////////////////////////////////////////////////////////////////////////////////

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;


 /*Please dont change namespace, Dcoder 
 and class must not be public*/

 //Compiler version 4.0, .NET Framework 4.5
/*
Gives me grief and constant errors
*/

 namespace Dcoder
 {
 	public class Program
 	{
 		public static void Main(string[] args)
	{
std::cout<<<<std::endl;
     Console.WriteLine("Currency converter");
	 // Declared variables
     double Au = 0.8, Us = 1.0;
	 double output1, input1, input2,  output2;
	 Console.WriteLine("--------------------- ")
	 Console.readLine(input1);
	 Console.log()"Au to Us: $");
	 output1 = Au / Us * input1;
	 output1 = Us / Au * input1;
	 Console.WriteLine("--------------------- ");
	 Console.WriteLine("$1 Aud to Us is $" + output1);
	 Console.WriteLine("--------------------- ");
	 Console.WriteLine(input2);
	 Console.WriteLine("Us to Au: $");
	 output2 = Us / Au * input2;
	 output2 = Au / Us * input2;  
	 Console.WriteLine("--------------------- ");
	 Console.WriteLine("$1 Us to Au is $" + output2);
	 Console.WriteLine("--------------------- ");
	 Console.WriteLine("Us to Au: $");
	 Console.readkey();
	      }	
       }
 }
////////////////////////////////////////////////////////////////////////////////////
	      

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

/*
No idea, was advised to use it 
*/
 /*Please dont change namespace, Dcoder 
 and class must not be public*/

 //Compiler version 4.0, .NET Framework 4.5


 namespace Dcoder
 {
 	public class Program
 	{
 		public static void Main(string[] args)
 		{
 			Console.Write("Currency converter");
Console.Write("\n");
// Declared variables
double Au = 0.8;
double Us = 1.0;
double output1;
double output2;
double input1;
double input2;
Console.Write("--------------------- ");
Console.Write("\n");
//Tangiable software converter C++ TO C# CONVERTER TODO TASK: The cout 'flush' manipulator is not converted by C++ to C# Converter:
//ORIGINAL LINE: std::cout <<"Au to Us: $"<<std::flush;
Console.Write("Au to Us: $");
double input1 = Console.ReadLine();
output1 = Au / Us * input1;
//output1 = Us / Au * input1;

Console.Write("--------------------- ");
Console.Write("\n");
Console.Write("$1 Aud to Us is $");
Console.Write(output1);
Console.Write("\n");
Console.Write("--------------------- ");
Console.Write("\n");
//C++ TO C# CONVERTER TODO TASK: The cout 'flush' manipulator is not converted by C++ to C# Converter:
//ORIGINAL LINE: std::cout <<"Us to Au: $"<<std::flush;
Console.Write("Us to Au: $");
double input2 = Console.ReadLine();
output2 = Us / Au * input2;
//output2 = Au / Us * input2;  
Console.Write("--------------------- ");
Console.Write("\n");
Console.Write("$1 Us to Au is $");
Console.Write(output2);
Console.Write("\n");
Console.Write("--------------------- ");
Console.Write("\n");
 		}
 	}
 }
Last edited on
Thomas1965 (4571)
OK I fixed the input. Console.Readline reads a string. To convert it to a double use the Convert class.
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using System;

/*
No idea, was advised to use it 
*/
/*Please dont change namespace, Dcoder 
and class must not be public*/

//Compiler version 4.0, .NET Framework 4.5


namespace Dcoder
{
  public class Program
  {
    public static void Main(string[] args)
    {
      Console.Write("Currency converter");
      Console.Write("\n");
      // Declared variables
      double Au = 0.8;
      double Us = 1.0;
      double output1;
      double output2;
      double input1;
      double input2;
      Console.Write("--------------------- ");
      Console.Write("\n");
      //Tangiable software converter C++ TO C# CONVERTER TODO TASK: The cout 'flush' manipulator is not converted by C++ to C# Converter:
      //ORIGINAL LINE: std::cout <<"Au to Us: $"<<std::flush;
      Console.Write("Au to Us: $");
      string buffer = Console.ReadLine();
      input1 = Convert.ToDouble(buffer);
      output1 = Au / Us * input1;
      //output1 = Us / Au * input1;

      Console.Write("--------------------- ");
      Console.Write("\n");
      Console.Write("$1 Aud to Us is $");
      Console.Write(output1);
      Console.Write("\n");
      Console.Write("--------------------- ");
      Console.Write("\n");
      //C++ TO C# CONVERTER TODO TASK: The cout 'flush' manipulator is not converted by C++ to C# Converter:
      //ORIGINAL LINE: std::cout <<"Us to Au: $"<<std::flush;
      Console.Write("Us to Au: $");
      buffer = Console.ReadLine();
      input2 = Convert.ToDouble(buffer);
      output2 = Us / Au * input2;
      //output2 = Au / Us * input2;  
      Console.Write("--------------------- ");
      Console.Write("\n");
      Console.Write("$1 Us to Au is $");
      Console.Write(output2);
      Console.Write("\n");
      Console.Write("--------------------- ");
      Console.Write("\n");
    }
  }
}

Run it and check if the results are correct.
Shibitto (27)
Compilation failed: 3 error(s), 0 warnings


source_file.cs(17,4): error CS0103: The name `Au' does not exist in the current context
source_file.cs(25,16): error CS0103: The name `Au' does not exist in the current context
source_file.cs(37,23): error CS0103: The name `Au' does not exist in the current context


Shibitto (27)
C# is pain in the arse.
Thomas1965 (4571)
Are you sure you copied everything?
Line 17 is only an opening brace.

C# is pain in the arse.

No it isn't - it's actually easier than C++ or Java
It's not for people who don't bother to learn the syntax and some rules.
Shibitto (27)
string buffer = Console.ReadLine();
input1 = Convert.ToDouble(buffer);
output1 = Au / Us * input1

Personally I didn't think to approach it in this manner, (I still enjoy getting into the code, yes c# teaches you rules and I think that's good, I guess the teacher expected me to learn c# in one day before I wasn't sure how to convert a string to a international, especially with parse) anyways I would have used stod or stold, string over double but not sure in c++ 2011.

You passed in a buffer is it c# then continued on

buffer = Console.ReadLine();
input2 = Convert.ToDouble(buffer);
output2 = Us / Au * input2;



Ps, Au wasn't assigned to a double, I mean common it's not easy coding on a phone, the look the teacher gives me 😃


Here's some free hugs and cake.🎂🤗🤗🤗🤗🎂
Last edited on
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