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  • How to run RMI in NetBeans?

    - by Samurai
    We can run RMI in netbeans by following steps. Right click build.xml - Run target - Other targets - startRMI But what i need is to start RMI registry through Java code. Is it possible? Help me.

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  • How to configure database for exe.file

    - by newbie123
    Recently I had created a Java Desktop Application, I wish to share it with my friends. I was thinking to convert it into exe file using exe4j, but as for the database part I not sure how to configure it so that the application can run on my friends desktop without re-configure the database again. I am using Microsoft Access, anyone can guide me how to do it?

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  • Is it possible to deploy a SOAP server with Axis without using WSDD?

    - by Alceu Costa
    In the project I am working I have deployed a SOAP server using Deployment Descriptors (WSDD) files. To do that a webserver (e.g tomcat, jetty) is started and then the following command is executed: java -cp %AXISCLASSPATH% org.apache.axis.client.AdminClient deploy.wsdd What I need is to skip the above command to avoid a call to the Axis AdminClient. Is it possible to deploy my webservice as war file? Note: A solution with JWS can't be used due to its limitations.

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  • Alternative of JPA

    - by Peter
    I want to use JPA for my persistence layer of my Java Desktop Application but I have the similar problem as describe at http://stackoverflow.com/questions/2562746/jpa-entity-design-problem/2563009#2563009 I didn't find a solution to the above kind of problem that's why I want to go with any other alternative of JPA. It would be better if I get the solution of the above problem.

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  • Drawing A Piano

    - by Jonathan M.
    Hello Everyone, I have started working on a software synthesizer (or keyboard). I have decided to use Java because of the available Jfugue API. I am trying to figure out how to go about creating the actual keys (notes) of the keyboard user interface, but I am stuck. I have tried to create an interface by dragging/dropping black and white rectangular buttons onto the panel, but that doesn't seem to work. Could someone point me into the right direction?

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  • MXMLC and 64bit JRE

    - by sascha
    Are there any workarounds to get the Flex compiler to work with a 64bit JRE? If I use an MXMLC task in an Ant buildfile in Eclipse it works fine but if I try to use MXMLC from the command line (or try the Run... command from FDT in Eclipse) it fails, telling me ... "Error loading: C:\Program Files\Java\jrrt-1.6.0\jre\bin\jrockit\jvm.dll" (this is with a 64bit JRockit runtime but that shouldn't matter).

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  • Is instanceof considered bad practice? If so, under what circumstances is instanceof still preferabl

    - by aioobe
    Over the years, I've tried to avoid instanceof whenever possible. Using polymorphism or the visitor pattern where applicable. I suppose it simply eases maintenance in some situations... Are there any other drawbacks that one should be aware of? I do however see it here and there in the Java libraries so I suppose it has its place? Under what circumstances is it preferable? Is it ever unavoidable?

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  • object array mobile development

    - by mixm
    Im currently creating a tile-based game for android. Using java via dalvik JVM. im fretting over a decision to represent objects in a particular map. should i use an id based map (2 dimensional integer array) and place game logic in a separate function in the game engine, or create an object array (2 dimensional array of game objects) and store game logic within the class methods. i am thinking about the cost of object creation and garbage collection vs extensibility.

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  • partial classes/partial class file

    - by Ravisha
    In C# .net there is a provision to have two different class files and make them a single class using the keyword partial keyword.this helps it to keep [for ex]UI and logic seperate. of course we can have two classes to achieve this one for UI and other for logic. Can this be achieved in java some how?

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  • How to use second level cache for lazy loaded collections in Hibernate?

    - by Chandru
    Let's say I have two entities, Employee and Skill. Every employee has a set of skills. Now when I load the skills lazily through the Employee instances the cache is not used for skills in different instances of Employee. Let's Consider the following data set. Employee - 1 : Java, PHP Employee - 2 : Java, PHP When I load Employee - 2 after Employee - 1, I do not want hibernate to hit the database to get the skills and instead use the Skill instances already available in cache. Is this possible? If so how? Hibernate Configuration <session-factory> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.password">pass</property> <property name="hibernate.connection.url">jdbc:mysql://localhost/cache</property> <property name="hibernate.connection.username">root</property> <property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property> <property name="hibernate.cache.use_second_level_cache">true</property> <property name="hibernate.cache.use_query_cache">true</property> <property name="hibernate.cache.provider_class">net.sf.ehcache.hibernate.EhCacheProvider</property> <property name="hibernate.hbm2ddl.auto">update</property> <property name="hibernate.show_sql">true</property> <mapping class="org.cache.models.Employee" /> <mapping class="org.cache.models.Skill" /> </session-factory> The Entities with imports, getters and setters Removed @Entity @Table(name = "employee") @Cache(usage = CacheConcurrencyStrategy.READ_WRITE) public class Employee { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private int id; private String name; public Employee() { } @ManyToMany @JoinTable(name = "employee_skills", joinColumns = @JoinColumn(name = "employee_id"), inverseJoinColumns = @JoinColumn(name = "skill_id")) @Cache(usage = CacheConcurrencyStrategy.READ_WRITE) private List<Skill> skills; } @Entity @Table(name = "skill") @Cache(usage = CacheConcurrencyStrategy.READ_WRITE) public class Skill { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private int id; private String name; } SQL for Loading the Second Employee and his Skills Hibernate: select employee0_.id as id0_0_, employee0_.name as name0_0_ from employee employee0_ where employee0_.id=? Hibernate: select skills0_.employee_id as employee1_1_, skills0_.skill_id as skill2_1_, skill1_.id as id1_0_, skill1_.name as name1_0_ from employee_skills skills0_ left outer join skill skill1_ on skills0_.skill_id=skill1_.id where skills0_.employee_id=? In that I specifically want to avoid the second query as the first one is unavoidable anyway.

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  • Problem of * in Command line argument

    - by Nithya
    Hi, This is simple question only... i did a program in java that accepts input via command line arguments. I get input of two numbers and operator in command line. multiplying two numbers, i have to give input as 5 3 *. But if i give like this, i cant get answer. Y its not accept * in cmd.... waiting for reply guys...

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  • List all avilable ResourceBundle Files

    - by shay
    Hello all , i am using ResourceBundle and i want to give the user an option to select a language for the GUI. i want to get a list of all resource files that are under a specific package. i don't know what resource i will have since this application based on plug-ins is there an option to ask from java to search all available resources under a package ? (if no i guess the plug-in should give all available local for it) thank you all

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  • Word XML to RTF conversion

    - by Chathuranga Chandrasekara
    I am in a need of programatically convert an Word-XML file into a RTF file. It has become a requirement, because of some third party libraries. Any API/Library that can do that? Actually the language is not a problem because I just need to work done. But Java, .NET languages or Python are preferred.

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  • Implementing a recently used or favorites dropdown in JComboBox

    - by Kevin Day
    I am looking for code that will add favorites / MRU type behavior to a JComboBox. I could code this myself, but it sure seems like someone else has probably already done it. I found the following (which looks exactly like what I want, but the source code is nowhere near complete): http://java.sys-con.com/node/36658 Any suggestions? I need to keep this relatively light, so I'd prefer to not use a component that's part of a monolithic widget library, and open source is preferred.

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