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• How does + operator behaves differently with numbers and strings in Java?

  - by Abhishek Jain

  Java does not have concept of operator overloading. Still + operator behaves as addition operator with numbers and concatenate operator with strings. This is similar to the operator overloading behavior. Please suggest.

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• Why program with php frameworks if it can be done better with rubi on rails, python or java?

  - by meyosef

  Hi, We have discussion in my job place about question (We use 1 of the php frameworks): Why program with php frameworks big web application if it can be done better with rubi on rails, python or java? Please say our opinion thanks

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• Java is there any IDE/Tool that can pull SQL statements out in to a file?

  - by ring bearer

  Hi is there any tool available in Java world that will parse/read a source file and pull SQL statements out in to a text file. This is a complex task given that you can write SQL statements in different fashion within the source (ex: using + sign or using .append()) or even conditional building of SQL.

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• Is this possible in Java: Map<SomeObject, Map<SomeOtherObject>>?

  - by davek

  Is this possible in Java: Map<SomeObject, Map<SomeOtherObject>>? I'm trying Map<Integer, Map<String>> am getting an "Incorrect number of arguments for type Map; it cannot be parameterized with arguments " error.

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• Is there a way to the hide win32 launch console from a Java program (if possible without JNI)

  - by Erik N

  You launch a java program from a console (maybe using a .bat script). I don't want the console to remain visible, I want to hide it. Is there a simple way to do this ? Without JNI ? Thanks.

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• Java for-each loop - Is it possible to get the index?

  - by Amir Rachum

  Is it possible to use a for-each loop in Java and somehow still get the index of the iteration? for (Object obj : ListOfObject) { // I want to know the index of obj! }

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• Do you have any tips to effectively use Java Assert?

  - by user49767

  I don't see much of the developer using Java Assert, but I am very keen in using them. Could you share some tips to effectively use them?

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• How to communicate with a USB device under Windows and Java?

  - by Gili

  I'd like to communicate with a USB device under Windows and Java but I can't find a good library to do so. I don't want the user to have to install any extra hardware or device drivers to make this work. That is, I want to be able to interact with USB just like other Windows applications do. I am familiar with jUSB and JSR 80 but both seem to be dead projects (at least for Windows).

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• What is the best way to manage unix process from java?

  - by erotsppa

  I'm looking for some simple tasks like listing all the running process of a user, or kill a particular process by pid etc. Basic unix process management from Java. Is there a library out there that is relatively mature and documented? I could run a external command from the JVM and then parse the standard output/error but that seems like a lot of work and not robust at all. Any suggestions?

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• What would PHP bring to the table for a Java Developer ?

  - by Rachel

  I am a Java EE developer working mainly with JSPs, Servlets, and frameworks like Spring. Will learning PHP be a wise decision ? What would PHP offer me ?

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• Is Object constructor called when creating an array in Java?

  - by Peter Štibraný

  In Java, an array IS AN Object. My question is... is an Object constructor called when new arrays is being created? We would like to use this fact to instrument Object constructor with some extra bytecode which checks length of array being constructed. Would that work?

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• Can we convert any java program into an eclipse plugin ?

  - by Karthik

  I want to write a plug-in which tracks the updates to a text file and stores them in a separate file. Should I first write a simple java program which does this and then try to convert it into a plug-in?

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• What is the best way to reuse classes from another Java project in Eclipse?

  - by Jonas

  I have multiple Java projects in Eclipse. I would like to reuse some classes in my new project from my old project. What is the best way to do that in Eclipse? I.e. is it possible to add another "project folder" to the build-path for my new project?

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• http proxy script that can handle javascript in Java ?

  - by fwfwfw

  CGIproxy works great for LAMP stack, but was wondering, is there a java class for a Http proxy that can pretty much render any HTML/Javascript ?

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• Java: 3rd libraries Fast from some package management thing?

  - by HH

  Frustrated in finding the .jar -balls like google collections or "package org.apache.commons.io;". Is there some utility to get them fast like the style-"apt-get source app"? "get-java-jar-ball-3rd source apache commons"?

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• How can I host many identical java web applications?

  - by aelkin

  Hello, I have a problem. I need to host many (tens, hundreds) of small identical JAVA web applications that have different loads during one time. I want to use Glassfish V3. Do I need to use a load balancer and clusters or something else? Advise where can I find information about similar problems and their solutions... Best regards, Alexey.

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• How to change to a different port for Java server in Netbeans to listen ?

  - by Frank

  I use Netbeans 6.7 to develop Java servlet. It defaults to port 8080. How do I change the port number to 8083 for example?

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• Can anybody give me a complete list of data structure supported in Java(not in util package)?

  - by Kavin

  I want to know what kinds of data structure in Java and not in the util package? For example: Hashmap, Collection, Set. Please give me a list of them as many as possible. Thank you

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• How to Broadcast to a shutdown system using java?

  - by pirates-iiita

  We use socket.send(packet) function in java to send a "packet" to a given port. My problem is that i have to send a packet to a shutdown system using UDP protocol. The problem with send() function is that first it verifies whether the host IP is multicast or not. Now my local area network is of broadcast type. So i am having problem is using this function. can anyone please give me a way ?

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• How to convert a Java Long to byte[] for Cassandra?

  - by dfrankow

  Lazy programmer alert. :) Cassandra stores column values as bytes (Java example). Specifying a LongType comparator compares those bytes as a long. I want the value of a long into a Cassandra-friendly byte[]. How? I poked around for awhile. I think you people can help me faster.

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• How do I make my java webservice client fetch and parse WSDL upon execution?

  - by ventolin

  I've created java webservices and clients using Netbeans. However, the clients seem to have the WSDL already 'built-in'. Is there an easy way of making my client fetch and parse the WSDL code upon execution, so that if the webservice moves to another server, the client is just invoked with a different commandline argument for where to find the webservice?

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• How can I get client side information using either Javascript or Java Servlets?

  - by reply2viveksshah

  How can I get client side information using either Javascript or Java Servlets? Client side information such as client's computer name, its IP Address etc. Thanks in advance.

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• Java/Eclipse Dependency mapping / graphing tool - Where is a JAR being used in my project?

  - by gav

  Hi All, I have a JAR on the build path of a medium sized Java application and I would like to know where it's used. At the most basic level if someone could tell me how to 'Find References' for a Jar that would be great. Whilst I'm looking at dependencies it would be great to find a tool that would map all of my package / external library usages and graph them. I used to have a free plug-in for eclipse that did just that but I haven't been able to rediscover it. Thanks, Gav

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• How do you merge two input streams in Java?

  - by J. Pablo Fernández

  Having two InputStreams in Java, is there a way to merge them so you end with one InputStream that gives you the output of both streams? How?

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• how to take user input in Array using java?

  - by sadia

  how to take user input in Array using Java? i.e we are not initializing it by ourself in our program but the user is going to give its value.. please guide!!

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