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need "if" help

This is a discussion on need "if" help within the C++ Programming forums, part of the General Programming Boards category; I am trying to make a program that asks for a number, and if you give it the right number, ...

  1. #1
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    need "if" help

    I am trying to make a program that asks for a number, and if you give it the right number, it will give you a message telling you that it is either correct or incorrect.
    Here's the code:

    Code:
    #include <iostream>
    
    using namespace std;
    
    int main()
    {
        int a;
        cout<<"Enter a number: ";
        cin>>a;
        cin.ignore();
        if(a==15){
            cout<<"Correct!\n";
        if(a!=15){
            cout<<"Incorrect!\n";
    
        cin.get();
    
        }
    
    }
    Can anyone tell me if I did something wrong or if I missed anything? I am new to cpp, so I'm kind of clueless. Thanks.

  2. #2
    Registered User manasij7479's Avatar
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    Can anyone tell me if I did something wrong or if I missed anything?
    What does your compiler have to say on the topic?

    These kinds of simple mistakes are easily caught by them.

    Also, inferring from your code, CONGRATULATIONS ....for using a _good_ compiler, not a prehistoric one !!

  3. #3
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    Where are your closing braces "}" for your if statements?

    You could also use an if/else instead of the two separate if statements.

    Code:
    if(a==15){
            cout<<"Correct!\n";
    }
    else {    
            cout<<"Incorrect!\n";
    }
    Jim

  4. #4
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    jimblumberg;1048692]Where are your closing braces "}" for your if statements?

    You could also use an if/else instead of the two separate if statements.

    hey thanks, it worked!

  5. #5
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    Code:
    #include <iostream>
    
    using namespace std;
    
    int main()
    {
        int a;
        cout<<"Enter a number: ";
        cin>>a;
        cin.ignore();
        if(a==15){
            cout<<"Correct!\n";
        if(a!=15){
            cout<<"Incorrect!\n";
    
        cin.get();
    
        }
    
    }
    i believe your problem is "if(a!=15)"

    should have 2 "==" to look for equality and not assigning.

  6. #6
    C++ Witch laserlight's Avatar
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    Quote Originally Posted by twistedforever
    i believe your problem is "if(a!=15)"

    should have 2 "==" to look for equality and not assigning.
    Except that != is not an assignment operator. You probably should read more of the replies before replying.
    AndrewHunter likes this.
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

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