Working on homework, hit a snag

This is a discussion on Working on homework, hit a snag within the C++ Programming forums, part of the General Programming Boards category; Hey guys, I'm in my first year of community college, trying to learn C++ for the first time. I'm running ...

  1. #1
    Registered User devisezni's Avatar
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    Working on homework, hit a snag

    Hey guys,

    I'm in my first year of community college, trying to learn C++ for the first time. I'm running into a snag on my homework though. I've got 99% of the code, but continually get the same error when i try to compile it.

    The code is supposed to Ask whether someone is an Instate student. If yes, tuition =

    here's the code:
    Code:
    #include <iostream>
    using namespace std;
    
    
    int main()
    {
        int numCredHour = 0;
        double totTuition = 0;
        char letter = ' ';
        
        
        cout<<"Are You An In-State Student?"<<endl;
        cin>>letter;
        cout<<"How Many Credit Hours Do You Have?"<<endl;
        cin>>numCredHour;
        
        if(toupper(letter) == 'Y'&& numCredHour < 10)
        {
               totTuition=numCredHour*50;
               cout<<"Your Total Tuition is: $"<<totTuition<<endl;
               }
                else(numCredHour>10);
                 totTuition=500;
                  cout<<"Your Total Tuition is: $500"<<endl;
        if (toupper(letter) == 'N' && numCredHour<15);
        {
               totTuition=numCredHour*400;
               cout<<"Your Total Tuition is: $"<<totTuition<<endl;
               }
        else (numCredHour>15);
               totTuition=6000;
               cout<<"Your Total Tuition is: $6000"<<endl;
    system("pause");
    return 0;
    }
    The error code i get is:
    30 C:\Users\******\Prog1.cpp expected primary-expression before "else"
    and
    30 C:\Users\******\Prog1.cpp expected `;' before "else"
    Any ideas as to what might fix my issue would be greatly appreciated. I'll be checking back here every couple of minutes while I work on the next few programs. Thanks for any and all who help!

  2. #2
    SAMARAS std10093's Avatar
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    Code:
                else(numCredHour>10);
                 totTuition=500;
                  cout<<"Your Total Tuition is: $500"<<endl;
    in line 1 the semicolon must be removed and actually i want to remind you to use braces when you are a beginner.When not using braces the compiler assumes that body of the if statement is only the very next line.No error is going to be produced ,but a possible logical error is on the way

  3. #3
    Registered User devisezni's Avatar
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    Okay, I think I get what you are saying... So it should look more like this:

    Code:
    #include <iostream>using namespace std;
    
    
    int main()
    {
        int numCredHour = 0;
        double totTuition = 0;
        char letter = ' ';
        
        
        cout<<"Are You An In-State Student?"<<endl;
        cin>>letter;
        cout<<"How Many Credit Hours Do You Have?"<<endl;
        cin>>numCredHour;
        
        if(toupper(letter) == 'Y' && numCredHour < 10)
        {
               totTuition=numCredHour*50;
               cout<<"Your Total Tuition is: $"<<totTuition<<endl;
               }
                else(numCredHour>10)
                {
                 totTuition=500;
                  cout<<"Your Total Tuition is: $500"<<endl;
                  }
        if (toupper(letter) == 'N' && numCredHour<15)
        {
               totTuition=numCredHour*400;
               cout<<"Your Total Tuition is: $"<<totTuition<<endl;
               }
        else (numCredHour>15)
        {
               totTuition=6000;
               cout<<"Your Total Tuition is: $6000"<<endl;
               }
    system("pause");
    return 0;
    }
    EDIT: After re-writing and compiling I get error codes stating i need a ; before each {
    Last edited by devisezni; 09-18-2012 at 01:37 PM. Reason: Failed To Compile program

  4. #4
    SAMARAS std10093's Avatar
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    Can you please post what the compiler actually says?

  5. #5
    Registered User devisezni's Avatar
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    Not a problem Dev -C++ compiler is what i am using.

    24 C:\Users\*****\Prog1.cpp expected `;' before '{' token
    34 C:\Users\*****\Prog1.cpp expected `;' before '{' token

  6. #6
    and the hat of wrongness Salem's Avatar
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    > else (numCredHour>15)
    else doesn't have an expression.

    You might have meant
    else if (numCredHour>15)

    But the final else is just that - everything else not matching any previous if / else if
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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  7. #7
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    Code:
    if (toupper(letter) == 'N' && numCredHour<15)
    {
        totTuition=numCredHour*400;
        cout<<"Your Total Tuition is: $"<<totTuition<<endl;
    }
    else (numCredHour>15)
    {
        totTuition=6000;
        cout<<"Your Total Tuition is: $6000"<<endl;
    }
    A quick review shows this mistake - the proper syntax is as follows:

    Code:
    if (condition)
    {
        // executes if condition is TRUE
    }
    else
    {
        // executes if condition is FALSE
    }
    Whereas you have:

    Code:
    else (numCredHour>15)
    That extra line after the "else" statement does not belong there.

    If you want the "else" to test another condition, then the proper syntax would be:

    Code:
    if (condition1)
    {
        // executes if condition1 is TRUE
    }
    else if (condition2)
    {
        // executes if condition1 is FALSE and condition2 is TRUE
    }
    [EDIT] Too slow...

  8. #8
    Registered User devisezni's Avatar
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    I love you guys! Everyone was a lot of help. here's the new and updated program code that works flawlessly so far through 5 examples Again, thank you!

    Code:
    #include <iostream>
    using namespace std;
    
    
    int main()
    {
        int numCredHour = 0;
        double totTuition = 0;
        char letter = ' ';
        
        
        cout<<"Are You An In-State Student?"<<endl;
        cin>>letter;
        cout<<"How Many Credit Hours Do You Have?"<<endl;
        cin>>numCredHour;
        
        if(toupper(letter) == 'Y' && numCredHour < 10)
        {
               totTuition=numCredHour*50;
               cout<<"Your Total Tuition is: $"<<totTuition<<endl;
               }
                if(numCredHour>10 && toupper(letter) == 'Y')
                {
                 totTuition=500;
                  cout<<"Your Total Tuition is: $500"<<endl;
                  }
        if (toupper(letter) == 'N' && numCredHour<15)
        {
               totTuition=numCredHour*400;
               cout<<"Your Total Tuition is: $"<<totTuition<<endl;
               }
        else if(numCredHour>15)
        {
               totTuition=6000;
               cout<<"Your Total Tuition is: $6000"<<endl;
               }
    system("pause");
    return 0;
    }
    If you know of a better way for me to write this up, any and all advice is welcome. Knowledge is my drug

    EDIT: Found a little snag in it, but fixed it with the advice you guys gave me. Changed the code i had here, and put up the new one. THanks again for all the help
    Last edited by devisezni; 09-18-2012 at 01:54 PM. Reason: found and fixed last error

  9. #9
    Been here, done that.
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    It also help to format your code consitently so you can actually see the blocks clearly. See this
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  10. #10
    SAMARAS std10093's Avatar
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    Quote Originally Posted by Salem View Post
    > else (numCredHour>15)
    else doesn't have an expression.

    You might have meant
    else if (numCredHour>15)

    But the final else is just that - everything else not matching any previous if / else if
    My only excuse is that i just arrived in swiss for a scholarship and i am 'out of my environment'...

  11. #11
    Registered User devisezni's Avatar
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    Quote Originally Posted by WaltP View Post
    It also help to format your code consitently so you can actually see the blocks clearly. See this
    Thanks! That helps a lot! my main problem was i was using tabs. lol Now I know why it wasn't acting right! and 'white space' does definitely clean it up.

    EDIT: If I run into any more snags, I'll definitely come back to this forum. Everyone was a big help! Wish me luck on the last 3 programs.
    Last edited by devisezni; 09-18-2012 at 02:04 PM.

  12. #12
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    Code:
    else(numCredHour>10);
     totTuition=500;
      cout<<"Your Total Tuition is: $500"<<endl;
    Quote Originally Posted by Salem View Post
    > else (numCredHour>15)
    else doesn't have an expression.

    You might have meant
    else if (numCredHour>15)

    But the final else is just that - everything else not matching any previous if / else if
    I recall a very very old thread:

    N00b with n00b question (probably a quick one)

    I honestly don't know why I remember it through...
    I never put signature, but I decided to make an exception.

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