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java collections

Posted on 2009-05-08
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Last Modified: 2013-11-23
I have to  print a paper book with indexes at the end. I have a 400 pages of english text running with only (Ctrl+L) separating each page. Now i want to create index of this book just as we have at the back of the book. What java collections i would use and how would i do it?

Also after creating the index, what is the way to print the whole book
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Question by:SunScreenCert
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hazgoduk earned 50 total points
ID: 24343205
Not quite sure what you're asking for but a LinkedHashMap could be useful if you wanted to do something like

Java - page 8-10, 12

etc assuming you know what content is on what page.
LinkedHashMap<String, String> pageIndex = new LinkedHashMap();

pageIndex.put("Java", "8-10, 12");

pageIndex.put("LinkedHashMaps", "13");
 

Iterator<String> itKeys = pageIndex.keySet().iterator();

String key = "";

String currentLetter = "";

if(itKeys.hasNext())

{

    do

    {

        key = itKeys.next();
 

        if(!key.startsWith(currentLetter)

        {

            currentLetter = key.substring(0,1);

            System.out.println("\n\n" + currentLetter + "\n");

        }
 

        System.out.println(key + ": " + pageIndex.get(key));

    }while(itKeys.hasNext());

}

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