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Thread: Array entry

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    Default Array entry

    Hi i have a problem. this is the following task i am trying to do.

    Write an interface Directory to manipulate entries in a telephone directory for the University. The interface must support the following operations:
    1) The ability to insert new entries into the directory. Entries should be stored in alphabetical order of surname.
    2) Delete entries from the directory either by name or number
    3) Provide a lookup method that will find the extension no of a member of staff given
    his/her name. You should try to make this method run as efficiently as possible.
    4) Change a personís telephone number
    5) Print the telephone directory in a neatly tabulated fashion.

    Write a class ArrayDirectory that implements this interface using an array to store the telephone directory information. The class must store the surname and initial for each member of staff and their telephone extension (a four digit number which may start with a zero). You may find it useful to define a class Entry to store information about individual
    entries. The entries should be read into the array from a text file consisting of multiple lines in the following format:

    Surname<tab>Initials<tab>Telephone extension

    The part that i am stuck on is trying to do the entry method, delete entries method, loop up method, change persons telephone number and be able to print it.

    anyone able to help me with this please?

    thanks


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    Default Re: Array entry

    What trouble are you having with it? What have you tried? What specifically are you confused about?
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    Default Re: Array entry

    I haven't tried anything yet. Its more i just don't know how to go about implementing my own entry and delete methods for an array. if that makes sense?

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    Default Re: Array entry

    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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    Default Re: Array entry

    it was more asking for guidance tbh rather than a post like that..

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    Default Re: Array entry

    if you wrote some code post here, so we can build on that.. try to use arraylists for add, delete and sort it supports those operations.. here ArrayList (Java Platform SE 7 )

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    Default Re: Array entry

    Quote Originally Posted by greenie1234 View Post
    it was more asking for guidance tbh rather than a post like that..
    That post is guidance. If you're having trouble starting your assignment, the best thing you can do is break it down into smaller pieces. That post describes how to do that.

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