Question

The following is a program from Starting out with C++ by Toni Gaddis. I am getting the following error messages pertaining to the lines: cin>>month[i].lowTemp; and months[i].avgTemp = (months[i].highTemp + month[i].lowTemp)/2;

The error messages read as follows: error C2039: 'lowTemp': is not a member of 'std::basic_string<_Elem,_Traits,_Ax>' and it continues. The second error message is identical.

The program is as follows:

Ch. 11, Assignment #3. pg. 646. Program #4.

//Weather Statistics.

//Write a program that uses a structure to store the following weather data

//for a particular month:

//Total Rainfall

//High Temperature

//Low Temperature

//Average Temperature

//The program should have an array of 12 structures to hold weather data for

//an entire year. When the program runs, it should ask the user to enter data

//for each month. (The average temperature should be calculated.) Once the

//data are entered for all the months, the program should calculate and

//display the average monthly rainfall, the total rainfall for the year,

//the highest and lowest temperatures for the year (and the months they

//occur in), and the average of all the monthly average temperatures.

//Input Validation: Only accept temperatures within the range between

//-100 and +140 degrees Fahrenheit.

//Header file section

//#include "stdafx.h"

#include<iostream>

#include<string>

using namespace std;

struct weather

{

double totalRainfall;

double highTemp;

double lowTemp;

double avgTemp;

};

void main()

{

weather months[12];

double total =0, highest, lowest, avgsum;

int highmonth, lowmonth;

string month[12]= {"January", "February", "March", "April", "May", "June",

"July", "August", "September", "October", "November",

"December"};

for(int i=0; i<12; i++)

{

cout<<"Enter total rainfall for month "<<month[i]<<": ";

cin>>months[i].totalRainfall;

cout<<"Enter high temperature: ";

cin>>months[i].highTemp;

while (months[i].highTemp < -100 || months[i].highTemp > 140)

{

cout<<"ERROR: Temperature must be in the range of "

   <<"-100 through 140.\n";

cout<<"\tHigh Temperature: ";

cin>>months[i].highTemp;

}

cout<<"Enter low temperature: ";

cin>>months[i].lowTemp;

while (months[i].lowTemp < -100 || months[i].lowTemp > 140)

{

cout<<"ERROR: Temperature must be in the range of "

   <<"-100 through 40.\n";

cout<<"\tLow Temperature: ";

cin>>month[i].lowTemp;

}

}

//Calculate the monthly average temperature and total rainfall.

for (int i=0; i<12; i++)

{

total=total + months[i].totalRainfall;

months[i].avgTemp= (months[i].highTemp + month[i].lowTemp)/2;

}

highest=months[0].highTemp;

lowest=months[0].lowTemp;

for(int i=1; i<12; i++)

{

if(months[i].highTemp>highest)

{

highest=months[i].highTemp;

highmonth=i;

}

if(months[i].lowTemp<lowest)

{

lowest=months[i].lowTemp;

lowmonth=i;

}

}

avgsum = 0;

//Calculate the average.

for(int i=0; i<12; i++)

{

avgsum=avgsum+months[i].avgTemp;

}

//Display the calculated data.

cout<<"Average monthly rainfall: "<<total/12<<endl;

cout<<"Total monthly rainfall: "<<total<<endl;

cout<<"Highest rainfall in "<<month[highmonth]<<"is: "<<highest<<endl;

cout<<"Lowest rainfall in "<<month[lowmonth]<<"is: "<<lowest<<endl;

cout<<"Average of average temperatures is: "<<avgsum/12<<endl;

system("pause");

}

Answer 1

//Please check this Solution please

//error caused because here yo used month intstead of months :):)

#include

#include

using namespace std;

struct weather

{

double totalRainfall;

double highTemp;

double lowTemp;

double avgTemp;

};

int main()

{

weather months[12];

double total =0, highest, lowest, avgsum;

int highmonth, lowmonth;

string month[12]= {"January", "February", "March", "April", "May", "June",

"July", "August", "September", "October", "November",

"December"};

for(int i=0; i<12; i++)

{

cout<<"Enter total rainfall for month "<

cin>>months[i].totalRainfall;

cout<<"Enter high temperature: ";

cin>>months[i].highTemp;

while (months[i].highTemp < -100 || months[i].highTemp > 140)

{

cout<<"ERROR: Temperature must be in the range of "

<<"-100 through 140.\n";

cout<<"\tHigh Temperature: ";

cin>>months[i].highTemp;

}

cout<<"Enter low temperature: ";

cin>>months[i].lowTemp;

while (months[i].lowTemp < -100 || months[i].lowTemp > 140)

{

cout<<"ERROR: Temperature must be in the range of "

<<"-100 through 40.\n";

cout<<"\tLow Temperature: ";

cin>>months[i].lowTemp;

}

}

//Calculate the monthly average temperature and total rainfall.

for (int i=0; i<12; i++)

{

total=total + months[i].totalRainfall;

months[i].avgTemp= (months[i].highTemp + months[i].lowTemp)/2;

}

highest=months[0].highTemp;

lowest=months[0].lowTemp;

for(int i=1; i<12; i++)

{

if(months[i].highTemp>highest)

{

highest=months[i].highTemp;

highmonth=i;
cout<

}

if(months[i].lowTemp

{

lowest=months[i].lowTemp;

lowmonth=i;
cout<

}

}

avgsum = 0;

//Calculate the average.

for(int i=0; i<12; i++)

{

avgsum=avgsum+months[i].avgTemp;

}

//Display the calculated data.

cout<<"Average monthly rainfall: "<

cout<<"Total monthly rainfall: "<

cout<<"Highest rainfall in "<

cout<<"Lowest rainfall in "<

cout<<"Average of average temperatures is: "<

return 0;

}

Answer 2

on lines 77 and 91, you have mistyped month[i].lowTemp instead of months[i].lowTemp.

Please correct it to months[i].lowTemp.

and when we compile it, result/output would be :