The last two FOR loops in the PRINT function in bold only have 2/3 of the elemen
ID: 3784803 • Letter: T
Question
The last two FOR loops in the PRINT function in bold only have 2/3 of the elements needed in the (), tried to figure it out, but the bold is still not right:
// main.cpp
// Ch. 10 Programming II
//
// Created by Jordyn Hamilton on 1/26/17.
// Copyright © 2017 Jordyn Hamilton. All rights reserved.
//
#include <iostream>
#include <iomanip>
#include <string>
#include <cmath>
using namespace std;
class romanType
{
public:
void print(char[]);
void set();
private:
string romanInt[7];
};
int main()
{
romanType rome;
rome.set();
cin.get(); cin.get();
return 0;
}
void romanType::print(char RomanNumeral[8])
{
char romanInt[7] = {'M', 'D', 'C', 'L', 'X', 'V', 'I'};
int integerValue[7] = {1000, 500, 100, 50, 10, 5, 1};
int length, x, y, total;
int value[10];
for (int x = 0; x <= 7; x++)
{
if (RomanNumeral[x] != '')
{
length++;
}
else
{
x = 7;
}
}
for (int x = 0; x <= 7; x++)
{
for (int y = 0; y < 7; y++)
{
if (RomanNumeral[x] == romanInt[y])
{
value[x] = integerValue[y];
}
}
}
for (int x = 0; x <= 7; x++)
{
if (value[x])
{
total += value[x+1] - value[x];
}
else
{
total += value[x];
}
cout << "Equivalent integer value is: " << total << endl;
}
}
void romanType::set()
{
char RomanNumeral[8];
int i;
cout << "Please enter in Roman Numerals ONLY: " << endl;
cin >> RomanNumeral;
for ( i =0; i < 8; i++)
{
RomanNumeral[i] = toupper(RomanNumeral[i]);
print(RomanNumeral);
}
}
Explanation / Answer
#include <iostream>
#include <string>
using namespace std;
class romanType{
public:
romanType();
romanType(string s);
~romanType();
void setRoman(string);
int romanToDecimal();
void printDecimal();
void printRoman();
private:
string romanNum;
int decimalNum = 0;
};
romanType::romanType()
{
romanNum = 1;
}
romanType::~romanType()
{
}
void romanType::setRoman(string troll)
{
romanNum = troll;
}
int romanType::romanToDecimal()
{
for (int i = 0; i < romanNum.length(); i++)
{
if (romanNum[i] == 'I')
decimalNum++;
if (romanNum[i] == 'V')
{
if (i > 0 && romanNum[i - 1] == 'I')
decimalNum -= 2;
decimalNum += 5;
}
if (romanNum[i] == 'X')
{
if (i > 0 && romanNum[i - 1] == 'I')
decimalNum -= 2;
decimalNum += 10;
}
if (romanNum[i] == 'L')
{
if (i > 0 && romanNum[i - 1] == 'X')
decimalNum -= 20;
decimalNum += 50;
}
}
cout << decimalNum << endl;
return decimalNum;
}
int main()
{
string numerals;
do{
cout << "Enter roman numerals: ";
cin >> numerals;
romanType Rom;
Rom.setRoman(numerals);
Rom.romanToDecimal();
} while (true);
system("PAUSE");
}
//try this
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