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Thread: can anyone think of a more efficient way of doing this...

  1. #1
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    Default can anyone think of a more efficient way of doing this...

    guys, this code calculate the amount of classes that a student needs to take lets say for 17 credits. It will be 5 three credits classes and 2 one credit classes, but I think the loop is kind of unnecessary. could anyone post a more efficient way? thanks

    public static void numOfClasses(int credits)
        {
            int class3 = 3, class1 = 1, numOfClass;
     
            do
            {
                if(credits >= 3)
                {
                    numOfClass = credits / class3;
                    credits -= (numOfClass * class3);
                    System.out.println("3 credits classes: "+numOfClass);
                }           
                else
                {
                    numOfClass = credits / class1;
                    credits -= (numOfClass * class1);
                    System.out.println("1 credit classes: "+numOfClass);
                }                
            }while(credits != 0);
        }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: can anyone think of a more efficient way of doing this...

    Look at using the /, - and % operators.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: can anyone think of a more efficient way of doing this...

    Quote Originally Posted by Norm View Post
    Look at using the /, - and % operators.
    like this? or could be better?

    public static void numOfClasses(int totalCred)
        {
            int numOfClass = 0;
     
            if(totalCred >= 3)
            {
                numOfClass = totalCred / 3;
                totalCred = totalCred % 3;
                System.out.println("3 credit classes: "+numOfClass);
            }
            if(totalCred >= 1)
            {
                numOfClass = totalCred;
                System.out.println("1 credit classes: "+numOfClass);
            }
        }

  4. #4
    Super Moderator Norm's Avatar
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    Default Re: can anyone think of a more efficient way of doing this...

    Does that code give the correct results?
    Do you intend that both if statements be true if the first one is true?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: can anyone think of a more efficient way of doing this...

    Quote Originally Posted by Norm View Post
    Does that code give the correct results?
    Do you intend that both if statements be true if the first one is true?
    yes, it gives correct result... now both statement are not always true, depending on the total of credits "totalCred"... have you try it?

  6. #6
    Super Moderator Norm's Avatar
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    Default Re: can anyone think of a more efficient way of doing this...

    No, I haven't tried it. If you get the correct results that should be the test.
    If you don't understand my answer, don't ignore it, ask a question.

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