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Thread: MultiHashMap

  1. #1
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    Default MultiHashMap

    Is there a way that I can get back how many vales are stored with a certain key?

    Like:

    Key = 1, Values = Max, Owen, Karl, Jonas, Rose

    Number of values would be: 5.
    But how do I get my program to tell me the amount?
    Becasue mapFile1.getValues.size() doesn't work.

    Or how do I let it print every value on a new line?
    Last edited by Purple01; September 18th, 2012 at 04:30 AM.


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    Default Re: MultiHashMap

    have a question reg ur query.
    Ur key say "1" will have multiple values (i.e. could be a list) as Max, Owen, Karl, Jonas, Rose.
    And u want to pring the size of values for key ="1"?

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    Default Re: MultiHashMap

    Okey, so this is my whole problem:

    I have a MultiHashMap.
    Who has a key with multiple values.
    Now I am trying to save those values in an excel file.
    Every value a new cell.

    Now I now how to do the excel part.
    XSSFCell cellAA = rowA.createCell(i);

    Now i needs to be number of values a certain key has.

    But how do I let it count how many values are with a certain key?
    After that I would like to print them one by one.

    That is my problem.
    After that my program is almost finished.

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    Default Re: MultiHashMap

    This is the code I have to grab the key and the entry:

    if (Match.equals(entry.getKey())) {
            				System.out.println(entry.getValue());
            			}

    But now to print every value seperate too.

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    Default Re: MultiHashMap

    a key with multiple values.
    I don't understand how that works. A key should be associated with one value.
    The object that is the value can contain anything, but there is still only one value associated with a key.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: MultiHashMap

    I have used a Api where it was in.
    I was thinking it was always usable, so that explain why it did work in my code.

    But I found the answer on how to do this.
    Now I can work things out to save the file.

    Thanks for the replies.

Similar Threads

  1. MultiHashMap - won't give the values back.
    By Purple01 in forum What's Wrong With My Code?
    Replies: 2
    Last Post: September 18th, 2012, 03:27 AM