|
My program works fine if the temperature entered is above 30(say 100).. it will perform the calculations and output the result. I need it to also output the number if it is below 30 (if i enter 29, it outputs 29) but i can't get it to output anything. Thnx for the advice.
#include "stdafx.h"
#include <iostream>
using namespace std;
float CheckCent(float c)
{
if (c > 30.0)
{
c=(c-32.0)/(1.80); return c;
}
return c;
}
int _tmain(int argc, _TCHAR* argv[])
{
float myarray[50];
int flag;
flag=1;
int i;
for(i = 0; i < 50 && flag == 1; i++)
{
cout << "Enter Temperature Reading:";
cin >>myarray[i];
cout << "Enter 1 to input more values, 0 to stop";
cin >>flag;
}
cout << "\n\nNumber of elements in the array is: " << i <<endl;
cout <<"\n";
for(int j=0;j<=i;j++)
{
if(myarray[j]>30.0)
{
myarray[j]=CheckCent(myarray[j]);
cout <<"The corrected value is: ";
cout <<myarray[j] <<" Celsius";
cout <<"\n\nProgram Complete!\n\n";
}
}
return 0;
}
|
|
|
|
|
In your program you are allowing only the input value thats greater than 30 for the conversion. if(myarray[j]>30.0)
And in CheckCent function also you are having the checkpoint
if (c > 30.0)
Remove them. So that it work for other values too. And check your conversion factor too.
Below is the formula for converting Faren... to Celsius
(Tc = (5/9)*(Tf-32); Tc = temperature in degrees Celsius, Tf = temperature in degrees Fahrenheit)
|
|
|
|
|
This is the output I get from my program now, but after it ouputs the correct value it says outputs another number like -12323e.6 and then says "Program Complete!" again. How do i get rid of this second output? Im also getting an error message - line [14] conversion from double to float, possible loss of data. Thanks.
#include "stdafx.h"
#include <iostream>
using namespace std;
float CheckCent(float c)
{
if(c>30)
{
c=(c-32)/(1.80); return c;
}
else return c;
}
int _tmain(int argc, _TCHAR* argv[])
{
float myarray[50];
int flag;
flag=1;
int i;
for(i = 0; i < 50 && flag == 1; i++)
{
cout << "Enter Temperature Reading:";
cin >>myarray[i];
cout << "Enter 1 to input more values, 0 to stop";
cin >>flag;
}
cout << "\n\nNumber of elements in the array is: " << i <<endl;
cout <<"\n";
for(int j=0;j<=i;j++)
{
myarray[j]=CheckCent(myarray[j]);
cout <<"The corrected value is: ";
cout <<myarray[j] <<" Celsius";
cout <<"\n\nProgram Complete!\n\n";
}
return 0;
}
|
|
|
|
|
Try this
for(int j = 0; j < i; j++)
instead of this
for(int j = 0; j <= i; j++)
-- modified at 10:22 Monday 9th April, 2007
|
|
|
|
|
I have a Property Sheet, I add 5 page in to the sheet. I want to change page name at runtime.
Please help me.
Thanks a lot,
Papais
|
|
|
|
|
dungpapai wrote: I want to change page name at runtime.
Since a CPropertyPage is nothing but a CWnd, you can use its SetWindowText() method to change its caption.
/ravi
|
|
|
|
|
I have used SetWindowText() at OnInitDialog() function of each pages but it does not success.
Papais
|
|
|
|
|
hi!
I have put two radio. one is singleselect and second is multiselect.
I want to set the click event on radio button for enable/disale Combobox and Listbox control.
for single select on which event of radio button.I have to write the code. Is BN_CLICKED ?
if it is then how can I write?
Please give me some guidline
"Success lies not in the result , But in the efforts !!!!!"
Amit Mistry - petlad -Gujarat-India
|
|
|
|
|
Is there a Win32 API I can call to get the total physical RAM of the computer?
It would also be nice to get "Available physical memory" as well, but that's not really a huge concern. But it probably involves using some awful API like WMI or PDH.
|
|
|
|
|
|
Brilliant. I knew it had to be simple. I think I'll use both GlobalMemoryStatusEx() and GlobalMemoryStatus() to make sure I handle all Windows platforms cleanly.
|
|
|
|
|
hi
I will ask a question but I don't know it is about the subject I wrote.I have a dialog box with an edit box and from this dialog box I created a new dialog box.And in second dialog box I will put many pushbuttons because I want to use it like a keyboard.When I push a button in second dialog box,it shoud write a letter at the edit box in first dialog box and the second dialog box will not be closed when I push the button.I tried many ways but in the first dialog box I coudn't get the knowledge of which button is pushed in second dialog box.How can I do that?
Thanks
|
|
|
|
|
Here's one way:- Add a public method to your first dialog box, that appends a letter to the edit control. For example:
void CFirstDlg::TypeLetter
(CString theLetter)
{
CString strText;
CEdit* pEditBox = GetDlgItem (IDC_EDIT_BOX)
pEditBox->GetWindowText (strText);
strText += theLetter;
pEditBox->SetWindowText (strText); <code>
int nLen = strText.GetLength();
pEditBox->SetSel (nLen, nLen, TRUE); <code>
}
- When you create your second dialog, pass it a pointer to the first dialog box. In the button handlers of your second dialog box, "send" the typed keystroke to the first dialog box. For example:
void CSecondDlg::TypeD()
{
m_pFirstDlg->TypeLetter ("D");
}
/ravi
|
|
|
|
|
Thanks
But I am beginner and I couldn't understand some parts.
First of all is this program will write the letter to first dialog box at the same time when I pushed the button in the second dialog box?Which part of the program provide this?And lastly,where I am declaring m_pFirstDlg?
Thanks again.
|
|
|
|
|
Which part of code is hard for you?
|
|
|
|
|
I tried a similar code in my project but I couldn't achieve.I declare a new object in second dialog box like;
void CSecondDlg::TypeD()
{
CFirstDlg firstDlg;
firstDlg.TypeLetter("d");
}
The problem is that for me I think the method in second dialog box is creating a new object which is different from the First dialog box own object.And when I add a letter in second dialog it is directly adding the letter to its own object so I couldn't see the letter in first dialog box(is it true?I am only thinking and I am not experienced).Maybe I don't know how thay are communicate with each other.
|
|
|
|
|
Do you want to send some values of a dialog to another dialog,if yes you can use of this line
CFirst *m_First=(CFirst*)GetParent();
<code>m_First->m_str;</code> or <code>m_First->yourcontrol</code>
|
|
|
|
|
iayd wrote: is this program will write the letter to first dialog box at the same time when I pushed the button in the second dialog box?
Yes.
iayd wrote: Which part of the program provide this?
I'm not sure I understand your question.
iayd wrote: where I am declaring m_pFirstDlg?
m_pFirstDlg is declared in the second dialog box and is a pointer to the first one. When the first dialog box creates the second one, it should pass a pointer to itself to the 2nd dialog box. That pointer is stored in the second dialog box's member variable m_pFirstDlg. Alternatively (as has WhiteSky has pointed out), the 2nd dialog box can get at the first dialog box by calling GetParent(), since it (the 2nd dialog box) is the child of the first one.
/ravi
|
|
|
|
|
Thanks to ravi and WhiteSky.
These answers solved my problem.
|
|
|
|
|
How to restrict the user to collapse the items in a tree control, it should always be expanded mode.
|
|
|
|
|
You can handle TVN_ITEMEXPANDING and return TRUE if the node is one you don't want to collapse
|
|
|
|
|
|
Hi everyone, I am working on a project for a C++ course, and I am running into a compile error that I can't figure out how to fix. It seems to be telling me that I am using a class member that is an undeclared identifier. As far as I can tell, it has been declared.
Here is the class declaration:
class Student
{
public:
/* Constructors and Destructor */
Student();
virtual ~Student();
Student(std::string first, std::string last, int SNum);
/* Getters and Setters */
std::string getFirstName(void);
void setFirstName(std::string newName);
std::string getLastName(void);
void setLastName(std::string newName);
int getStudentNum(void);
void setStudentNum(int newNum);
std::vector<std::string> getGradeList(void);
void setGradeList(std::vector<std::string> &GList);
private:
std::string FirstName;
std::string LastName;
int StudentNum;
std::vector<std::string> GradeList;
};
And this is the code that is giving the problems at compile-time:
void setGradeList(std::vector<std::string> &GList)
{
GradeList = GList;
}
Build error:
students.cpp(62) : error C2065: 'GradeList' : undeclared identifier
So, this is driving me crazy, and any help would be greatly appreciated!
Thanks in advance!
|
|
|
|
|
all_in_flames wrote:
students.cpp(62) : error C2065: 'GradeList' : undeclared identifier
Because GradeList() is not a member of class Student.
"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15
"Judge not by the eye but by the heart." - Native American Proverb
|
|
|
|
|
You left out the class name in the function header:
void <font color=red>Student::</font>setGradeList(std::vector<std::string>& GList)
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
