data « Map « Java Collection Q&A

Home
Java Collection Q&A
1.algorithm
2.array
3.Array Byte
4.Array Char
5.Array Convert
6.Array Dimension
7.Array Integer
8.Array Object
9.Array String
10.ArrayList
11.collection
12.comparator
13.Development
14.Garbage Collection
15.Generic
16.hash
17.HashMap
18.HashTable
19.iterator
20.LinkedList
21.List
22.Map
23.queue
24.Set
25.Sort
26.tree
Java Collection Q&A » Map » data 

1. What is the best way to read, represent and render map data?    stackoverflow.com

I am interested in writing a simplistic navigation application as a pet project. After searching around for free map-data I have settled on the US Census Bureau TIGER ...

2. Data Exchange Design Proposal    stackoverflow.com

Basically the situation we have is we need to be able to take data from an arbitrary data source (database, flat file, it could be anything really), morph the data so ...

3. JibX: how to map a class and avoid it being outputed as XML node    stackoverflow.com

I am using JibX as a Java Object to XML Binding tool. With it, I want to have the following output:

<?xml version="1.0" encoding="UTF-8"?>
<FEAPService>
    <Request>
    ...

4. Mapping XPath 1.0 data types to java    stackoverflow.com

I'm using XPath 1.0 to process incoming web services messages. This can be quite hard to get right if schema data types are used, because XPath 1.0 ...

5. Determining whether geographic point is within X meters of a state border (using shapefile for border data)    stackoverflow.com

So I'm writing a Java app, and I've got an ESRI Shapefile which contains the borders of all the U.S. states. What I need is to be able to determine ...

6. Data lookup method for small data set with Java?    stackoverflow.com

We have to lookup some data based on three input data fields. The lookup has to be fast. There are only about 20 possible lookup combinations. We've implemented ...

7. Java: Data structure for caching computation result?    stackoverflow.com

I have an expensive computation, the result of which I'd like to cache. Is there some way to make a map with two keys? I'm thinking of something like Map<(Thing1, Thing2), ...

8. Is there a common Data Structure that represent a Map of Lists in Java    stackoverflow.com

I'm looking for a common data sctructure that has the capabilities of a Map<K, List<V>> Currently what I do is something like

public class MapOfLists <K,V>{

     private Map<K, List<V>> ...

9. In Java, which is the most recommended class for a dictionary data structure?    stackoverflow.com

I need a data structure to store users which should be retrieved by id. I noticed there are several classes that implement the Map interface. Which one should be my default choice? ...

10. Java built-in data structure for mapping adjacent rooms    stackoverflow.com

I'm looking for a Java built-in data structure that would be the best at handling adjacent rooms. I have a grid/floor divided into randomly generated rooms like so:

 + + + + ...

11. Rendering maps from raw SVG data in Java    stackoverflow.com

In an application of mine I have to display locations and great circle paths in a map which is rendered to PNG and then displayed on the web. For this I ...

12. I'm trying to simulate a directly mapped cache in java. Any ideas on which data structure to use to represent the cache?    stackoverflow.com

I'm trying to simulate a directly mapped cache in java. Any ideas on which data structure to use to represent the cache?

13. How to export data which are mapped to enumerations    stackoverflow.com

I have a set of data which needs to be imported from a excel sheet, lets take the simplest example. Note: the data might eventually support uploading any locale. e.g. assuming one ...

14. Java datastructure to map multiple keys to the same value    stackoverflow.com

In Java I'm looking for a way to map multiple keys to the same value. Let's say I have the numbers 0-9 as keys, and "x", "y" and "z" as values ...

15. Map of Maps data structure    stackoverflow.com

The MultiValueMap class (Apache commons collections) makes it easy to work with a Map whose values are Collections. I'm looking for a a class that makes it easy to ...

16. java data-structure to simulate a data tree    stackoverflow.com

I need help defining what approach to use. I have a SOAP response giving me an xml file. I need to end-up with 3 correlated lists displayed on screen. When you ...

17. Need help mapping this data in Java    stackoverflow.com

I am having problems mapping this data

          1           35
    ...

18. String and complex data types in Map.xml for IKVM!    stackoverflow.com

I am using IKVM to transform my java .jar file to a .NET .dll file. I can create a property from the getter and setters of integer types .. But am not able ...

19. how to store data in Java with key name and its value?    stackoverflow.com

I have a situation where i want to store data in an object with a key and its value. The key name is the same, but the value is changed. i ...

20. How to initialize a TreeMap with pre-sorted data?    stackoverflow.com

My app uses a TreeMap to keep data sorted and have log(n) lookups & inserts. This works great in the general case while the app is running, but when ...

21. How to map data from other languages to java    stackoverflow.com

We have to store data from some flat files that is created using IBM's Ab-Initio product. They have their own datatypes that I need to map to java data-types while I ...

22. What data structure should I use for object storage, for easily generating primary keys for new entries?    stackoverflow.com

I'm doing a school project in Java and I the following question have arisen: I have an entity with attributes - id, name, phone.. with id as the unique primary key. I ...

23. What data structure to use to store key-value pairs of type ? One key has many values    stackoverflow.com

my application reads bigram collocation (pairs) from a .txt file. they are to be read as key-value pairs. a single key can have multiple values (So, any kind of a Map ...

24. Best way to store data for your game? (Images, maps, and such)    stackoverflow.com

So I'm creating a basic 2d game (well a game engine) and I've currently been developing the file formats for my data. Of course, for this game to run, I will ...

25. Java - Data types used as keys in maps    stackoverflow.com

What types of data types are admissible to use as keys in maps in java? Is it ok to use a double? How about a String?

26. Sorting custom data structure on Key in TreeMap    stackoverflow.com

I am trying to sort a TreeMap on key. Key is some custom DataStructure having int, List, String, etc. The member on which I am expecting a sort has some duplicates. Let's ...

27. Suitable Java data structure for parsing large data file    stackoverflow.com

I have a rather large text file (~4m lines) I'd like to parse and I'm looking for advice about a suitable data structure in which to store the data. The file ...

28. saving data in a file based from Tree map    coderanch.com

Hi experts, I need to save information from a treeMap that has as a key a GregorianCalendar and as a value a vector of a certain object. When I wanted to implements is, I got the following error: Error: can not write to file!Error: can not write to file!Error: theBills.Bill that is in fact an exception!! Here are the pieces of ...

29. Mapping Relational Data to web pages    coderanch.com

Does anyone have any information or tutorials on mapping relational data to web pages to create dynamic web pages? I've been trying something on my own, and I just want to know if I'm doing this right. I spent a good deal of time designing the database, and now I'm not sure how to extract that info to include it dynamically ...

30. Which one would be Optimal? ( Map Vs Data Base)    coderanch.com

Dear All, Back, into this forum, after quite a long time. Now, I have a scenario, where some information is stored in Database. I fetch the information, and store the data in a Map. Later at some point of time, I need information, which would be a sub-set of what is in the Map. Now, would it be wise, to use ...

32. data mapping frameworks    coderanch.com

Can someone recommend to me a framework or anything off the shelf that can take some of the hand cranking out of developing some data mapping software. I trawled the apache web site half expecting someone working on one of their projects to have produced something I could reuse, unfortunately this doesn't appear to be the case. Chris

33. Can not pull data from the has map    coderanch.com

I can not get the find button to return the data from the hash map. I have tried everything I can think of with using the key, get, from the hashmap. If more code is need let me know. public void actionPerformed (ActionEvent e) { Map myObjects = new HashMap(); Button buttonObj = (Button) e.getSource(); if (buttonObj == addButton) { delButton.setEnabled(false); ...

34. question to map the 3 colunms to the key value pair data structure    coderanch.com

[Post New]posted Today 12:45:40 AM private message Quote [Up] i have 3 values such as personname,category and favorites but i need to store them as key value pairs in an data structure in java and invoking the methods on that data structure. i have the data like this personname category favorite Tom food pista Tom car Toyata arun car benz arun ...

35. Is a Map data type that holds three objects possible?    coderanch.com

I'm talking about something like this: Map projectHolder; // is that even possible? there would only be one projectName but this would have to be able to hold multiple devices and channels... Or would it be better just to make a ProjectHolder object to hold these three things? I could then bind the object to a list of ...

37. Problem reading data from file, putting it into map, then writing it back to text doc.    coderanch.com

For some reason when it writes to the text it does not loop through the original map details. here is all the code I think is important if(ae.getSource() == addButton) { TreeMap pBook= new TreeMap(); pBook = readFile(); String fName = aFNameField.getText(); String lName = aLNameField.getText(); String phone = aPhoneField.getText(); String pName = fName+lName; Person p = new Person(fName,lName, ...

38. Data access is too slow with the Map table    dbforums.com

I have two Entities named STUDENT and TEACHER and a many-to-many relationship between them. So to maintain this relationship I have a map table STUDENT_TEACHER_MAP. STUDENT(STUDENT_PK, STUDENT_NAME) --- 30,000 records TEACHER(TEACHER_PK, TEACHER_NAME) --- 25 records STUDENT_TEACHER_MAP(STUDENT_PK,TEACHER_PK) --- 30,000 records Now I have a query to display the records of STUDENT_TEACHER_MAP table but results should show STUDENT_NAME and TEACHER_NAME. Query is: select ...

39. data structure with multiple keys    java-forums.org

40. How to read a Log file and map the data to a table in an RDBMS?    java-forums.org

Hello please help me with this.. I have a log file,... i want to read the data from the log file which shows how many requests are there ... the code must be in such a way that there should be an hourly stats mapped to a database , typically an oracle database... The req. is to take the data from ...

41. mark data on map    forums.oracle.com

Hi id like to do something similar to this www.pininthemap.com As a basic starting point Id like to have a world map graphic where anyone can add a flag to a location on the map and then type a comment which will be linked to that flag. Users can view the map with all the added flags on and choose to ...

42. data mapping    forums.oracle.com

43. Using nio channels and map to move data to disk quickly    forums.oracle.com

ejp wrote: I don't see how to specify the buffer the data is coming from. You don't. You specify the channel the data is coming from. My base problem is that I don't know the fastest way to move data from memory, where it will be deposited every 3-6 seconds, to disk. nio map appears to create a file and reserve ...

44. Connecting map data structure to JXMapViewer    forums.oracle.com

Hi I have a data structure set up to hold nodes of a map, and all the parsed map data from an open streetmap xml file. I also have JXMapViewer which is conncecting the openstreetmap server to retrieve the maps. I also have code that retrieves data from the gps receiver, parses it and has it ready to be accessed. How ...

45. coming data of two maps how ?    forums.oracle.com

46. Data structure with double mapping?    forums.oracle.com

I'm creating a simple class which is required to hold a hardware store's inventory. The inventory needs to hold the product name, the quantity on hand and the unit price. I realise I could created two HashMaps (or similar), with the product name as the key of each (can assume the product name is unique) a la a relational database, but ...

47. Data Structure for mapping flat fliles to in memory.    forums.oracle.com

Hi All, I am new to java and I am working on a project to create a data structure that would map a database search result(got from flat files) to in memory, so that I have to just call the mapped structure to retrieve my search result(that would be time efficient). Could someone help me by giving ideas /code how to ...

48. Efficient data structure with a non-unique key    forums.oracle.com

Gday all, long time lurker first time poster. I've got a problem at the moment whereby I have a lot of items stored in my system that need to be displayed in a list. Now, I don't really want to display 100,000 all at once in a JComboBox, so I've been looking at a solution whereby a text box backed onto ...

49. how to get gml map data in java .    forums.oracle.com

can anyone help me plz.... if someone knows gml(geography markup language) then he can easily understand what i m trying to say... actually gml data contains only coordinates x and y.n it shows in the form of map so i require that coordinates in java after performing some operation on that data again in the form of gml...can someone post code ...

50. How do I parse map data?    forums.oracle.com

51. Problem with map data structure in java    forums.oracle.com

Hi, i intend to store names with phone numbers under the following constraint: 1.If the same person has two different phone numbers then the latest one gets stored. 2.If two different persons have the same phone number then both the entries should not appear in the list 3.If there are two similar entries, then only one of them should appear. I ...

java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.