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Thread: Help me to Choose Collections

  1. #1
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    Default Help me to Choose Collections

    Hi
    I need to store a single key multiple values,how i want a collection is

    key1,value1,value2,value3....
    key2,value1,value2....

    please suggest me a suitable collection for the above scenario and help me how to retrieve those values
    for eg
    for the first iteration my output should be

    key1
    value1,value2,value3

    for the second iteration my output should be
    key1
    value1,value2
    Please help me.. thanks in advance


  2. #2
    Administrator copeg's Avatar
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    Default Re: Help me to Choose Collections

    A Map that contains a List as the value. Something like:
    Map<String, List<String>> map = new HashMap<String, List<String>>();
    List<String> list = new ArrayList<String>();
    list.add("1");
    list.add("2");
    map.put("First", list);

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