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Questions tagged [linkedhashmap]

LinkedHashMap is a Hash table and linked list implementation of the Map interface in the Java Standard library. This implementation provides a predictable iteration order, in contrast with the unspecified ordering provided by HashMap, which is normally the order in which keys were inserted into the map.

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Filter duplicates of type Object from List in Java

I got a LinkedHashMap that has some duplicates in the output. The map looks like this: Map> myMap= new LinkedHashMap>(); When I sysout this map the result looks like this: Test.example.id =…
Kevin
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LinkedLists within LinkedHashMaps

The following displays a player along with a stat line(Points, Assists, etc.). For the sake of having to create this for several players, is there any way I simplify this or am I approaching this completely wrong? public static void main(String[]…
zencoder24
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How to retrieve all the values from LinkedHashMap in java while using ResulSet.absolute() method

I have to retrieve only some specific rows from the ResultSet ,for that I have absolute() method of ResultSet and have put the values of that row in a LinkedHashMap. But when I execute the code ,only last row is being printed not all the specified…
MES
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[GAE - Objectify]: LinkedHashMap doesn't respect key's order

I'm working with Objectify to access DataStore in a Google App Engine application. I have 2 Entities: @Entity public class Client { @Id String id; } @Entity public class Queue { @Index @Id String name; @Load…
mancioshell
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Comparing linkedHashMap values to strings in Java

My question: Why is linkedhashmap returning an object when I am expecting a string (perhaps my expectations are incorrect?), and how can I compare if a string value "line" contains the value of the linkedHashMap "sections"? I am defining the linked…
Skinner
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permute data for a HashMap in Java

i have a linkedhashmap and i need to permute (change the key of the values) between 2 random values example : key 1 value 123 key 2 value 456 key 3 value 789 after random permutation of 2 values key 1 value 123 key 2 value 789 key 3 value 456 so…
Eddinho
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Java Ram Usage Inconsistencies

I am currently working on a 2D java game which utilizes a linkedhashmap for rendering data at a particular tile. When I serialize the class object which contains this as well as a few other non transient objects used for map rendering the file which…
StoneAgeCoder
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How to write a function with linkedhashmap parameter

Sorry i'm new to linkedhashmap, i have no idea how to apply for this. Appreciated for any help. JSP file <% LinkedHashMap htItem = (LinkedHashMap) session.getAttribute("RiskItem"); Vector Record = new Vector(); …
jschew
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Safely deserializing LinkedHashMap in android

I have a LinkedHashMap that I want to pass through the Bundle savedInstanceBundle to store it between screen rotations. How do I do this safely? Before I just cast it because I know what I'm putting into it and what I'm getting out of it, but this…
G_V
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To display number of rows counted along with data from database in tabular format

I want to retrieve two columns from database namely system_name and arrival_time and display these in tabular format. Now along with these two columns, I want to display a third column which will represent the number of times system_name appears in…
SRY_JAVA
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Java: LinkedHashMaps overlaps over themselves

I want to create a copy of linked hash map and then I want to remove all values (from the List) instead of the first entry. Here is what I got: LinkedHashMap> facetsInCategoriesCopy = new LinkedHashMap<>(facetsInCategories); if…
TheKolaNN
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How To Convert JSONArray To LinkedHashMap?

I have a JSON Object in The Form {"pageId":1,"stgId":1,"userId":2,"requestStageId":0,"requestPageId":0,"answer":[{"qId":"6","ansValue":"1"},{"qId":"11","ansValue":"10"}]} I receive the data as : long uid = (long)inputJsonObj.get("userId"); long…
Arindam Das
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Data Structure for Ascending Order Key Value Pairs with Further Insertion

I am implementing a table in which each entry consists of two integers. The entries must be ordered in ascending order by key (according to the first integer of each set). All elements will be added to the table as the program is running and must be…
user3624831
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how to store LinkedHashMap value into double type array

I want to store LinkedHashMap value into double type array. How to do that ? I tried in this way Double[] avg= (Double[]) averageMap.values().toArray(); where averageMap is: LinkedHashMap averageMap = new LinkedHashMap
SRY_JAVA
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How to use ChartDirector.XYChart addLineLayer() method with argument as Double;

I want to display my output in graphical format using ChartDirector.XYChart.When I use its addLineLayer()method with arugument as Double Type array, then it shows an error "The method addLineLayer(double[]) in the type XYChart is not applicable for…
SRY_JAVA
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