Need Help please

This is a discussion on Need Help please within the C++ Programming forums, part of the General Programming Boards category; The question is: Write a C++ program that will read temperature and degrees fehrenheit and convert it to degree celesius. ...

  1. #1
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    Unhappy Need Help please

    The question is:
    Write a C++ program that will read temperature and degrees fehrenheit and convert it to degree celesius.
    celesius=5/9(fahrenheit-32).
    It may be very easy to other but I'm an ameature in C++.
    please help

  2. #2
    Bond sunnypalsingh's Avatar
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    No one will write full code for you...show some efforts...whereever you are stuck...post it....someone will definetly help you

  3. #3
    Registered User mrafcho001's Avatar
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    Well to begin with you are gonna need a function that would translate from C to F, and from C to F

    and then in the main function you are gonna need to ask for the degreese and run the apropriate function.
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  4. #4
    ^ Read Backwards^
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    Maybe this will help, just a few days old:
    Centigrade->Farenehit program. Problem, please help.

    It is the reverse of your problem.

  5. #5
    C++ Enthusiast jmd15's Avatar
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    Code:
    #include<iostream>
    using namespace std;
    int main()
    {
      float fahr; //holds user entered degrees in Fahrenheit
      float cels; //holds our calculated degrees in Celsius
    
      cout << "Enter degrees in Fahrenheit: ";
      cin >> fahr;                          //Get user input
      cels = (((fahr-32)/9)*5);             //Equation to convert F to C
      cout << fahr<<" degrees equals "<< cels << " degrees in Celsius"<< endl;  //Output answer
      system("PAUSE");  //Pause so you can read the answer
      return 0;    
    }
    Trinity: "Neo... nobody has ever done this before."
    Neo: "That's why it's going to work."
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  6. #6
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    No one will write full code for you
    Evidently not. Please do not post questions asking for people to write your entire program. Come to the forums with a specific question and show that you have already tried. Equally annoying, do not encourage this behavior by GIVING people their entire program.

    Please refer to the forum rules:

    http://cboard.cprogramming.com/annou...ouncementid=51

  7. #7
    C++ Enthusiast jmd15's Avatar
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    I'm sorry but it was such an easy program that explaining it is longer than writing it. I couldn't help it. I commented to show him how it was done.
    Trinity: "Neo... nobody has ever done this before."
    Neo: "That's why it's going to work."
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  8. #8
    Registered User mrafcho001's Avatar
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    What if you want to go from Cels to fah?

    you can create the functions:
    Code:
    int FC(int f)
    {
    return (f - 32) * 5/9
    }
    
    int CF(int c)
    return (c * 9/5) +32
    }
    Last edited by mrafcho001; 10-08-2005 at 02:20 PM.
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  9. #9
    C++ Enthusiast jmd15's Avatar
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    He didn't say he needed to go from Celsius to Fahrenheit, but yes you could have made the equation into a function.
    Trinity: "Neo... nobody has ever done this before."
    Neo: "That's why it's going to work."
    c9915ec6c1f3b876ddf38514adbb94f0

  10. #10
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    Thank you all for helping me out and i'm sorry that i had make go through all of this.
    And by the way you are right i should specifie my question.
    Anyway i only had two classes in C++ and i have no backeground on this subject.
    Again thank u all for help.

  11. #11
    VA National Guard The Brain's Avatar
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    Here is a little code you can try:


    Code:
    #include<vector>
    #include<cstdlib>
    #include<iomanip>
    #include<iostream>
    #include<windows.h>
    
    using namespace std;
    
    class Temp
    {
    
    public:
    
    	void   menu();
    	double f_to_c(char* fehrenheit);
    	char*  get_user_input();
    	void   display_answer(char* fehrenheit, double celcius);
    	bool   again();
    
    private:
    
    	vector<char> user_input;
    };
    
    void clrscr();
    
    int main()
    {
    	Temp *MyTemp;
    	char *f_temp;
    
    	do
    	{
    		MyTemp->menu();
    
    		f_temp = MyTemp->get_user_input();
    
    		MyTemp->display_answer(f_temp, MyTemp->f_to_c(f_temp));
    
    	}while(MyTemp->again());
    
    return EXIT_SUCCESS;
    }
    
    
    void Temp::menu()
    {
    	clrscr();	
    
    	cout	<< endl << endl << endl << endl	
    			<< setw(40) << "+----------------------------+\n"
    			<< setw(40) << "| +------------------------+ |\n" 
    			<< setw(40) << "| |                        | |\n" 
    			<< setw(40) << "| | Fehrenheit  to Celcius | |\n"
    			<< setw(40) << "| |                        | |\n" 
    			<< setw(40) << "| | Temperature Converter  | |\n"
    			<< setw(40) << "| |                        | |\n"
    			<< setw(40) << "| +------------------------+ |\n"
    			<< setw(40) << "+----------------------------+\n";
    }
    
    
    
    char* Temp::get_user_input()
    {
    	char input, *f_temp;
    
    	cout	<< endl << endl
    			<< setw(20) << "Enter temperature in degrees fehrenheit :  ";
    
    	cin.get(input);
    	
    		while(input!='\n')
    		{			
    			user_input.push_back(input);
    			cin.get(input);
    		}
    
    	f_temp = new char[user_input.size()];
    
    	for(int i=0, back=user_input.size(); i<back; i++)
    
    		f_temp[i] = user_input[i];
    
    	return f_temp;
    }
    
    
    double Temp::f_to_c(char* f_temp)
    {
    	double f;
    
    	f = static_cast<double>(atof(f_temp));
    
    	return(((f-32)/9)*5);
    }
    
    
    void Temp::display_answer(char* fehrenheit, double celcius)
    {
    	cout << endl << endl; 
    
    	cout << static_cast<double>(atof(fehrenheit)) << "F equals " << celcius << " degrees celcius.";
    }
    
    
    void clrscr()
    {
        COORD coordScreen = { 0, 0 };
        DWORD cCharsWritten;
        CONSOLE_SCREEN_BUFFER_INFO  csbi;
        DWORD dwConSize;
        HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
    
        GetConsoleScreenBufferInfo(hConsole, &csbi);
    
        dwConSize = csbi.dwSize.X * csbi.dwSize.Y;
    
        FillConsoleOutputCharacter(hConsole, TEXT(' '),dwConSize, coordScreen, &cCharsWritten);
    
        GetConsoleScreenBufferInfo(hConsole, &csbi);
    
        FillConsoleOutputAttribute(hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten);
    
        SetConsoleCursorPosition(hConsole, coordScreen);
    }
    
    
    bool Temp::again()
    {
    	char choice;	
    
    	cout << "\n\nWould ye' like to try again?";	
    
    	cin.get(choice);
    
    	switch(toupper(choice))
    	{
    		case 'Y': return true;
    			      break;
    
    		case 'N': clrscr();
    			      return false;
    				  break;
    
    		default:  cout << '\a'; 
    			      again();
    	}
    }
    Last edited by The Brain; 10-10-2005 at 08:34 PM.
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