JAVA QUESTIONS

help you fix your problem The answer is short: It's possible with overloading in C++ but there is no way to do that in Java.

TAG : java

Date : October 14 2020, 01:11 PM , By : Pramod Pramo

Java or php tree structure problem

Hope this helps you can download PHP tree (or even binary tree in your case) classes from phpclasses.org, then you can use a script that fills in the tree with the data from your database. You will have more independent parts of the tree, as you have

TAG : java

Date : October 14 2020, 01:11 PM , By : Spedular

Can I perform a search on mail server in Java?

this will help You can let the server do the search for you, with the appropriate IMAP command. The SEARCH command will only get you so far, what you probably need is the SORT command. SORT isn't implemented in JavaMail but the documentation shows ho

TAG : java

Date : October 14 2020, 01:11 PM , By : user3852984

Location based Timezone Retrieval

fixed the issue. Will look into that further This depends on information the "location" contains? You'd somehow need to map the location to a timezone name, preferably the Olson style timezone names, because they are more detailed and easier to map,

TAG : java

Date : October 14 2020, 01:11 PM , By : Fahd

Handling newline character in input between Windows and Linux

wish helps you I think this is a standard problem which may have been asked before but I could not get the exact answer so posting the issue. , Linux uses \n.Windows uses \r\n.

TAG : java

Date : October 14 2020, 01:11 PM , By : Schnitzi

Object Literals In Java?

may help you . This is an anonymous inner class.In this case, the code is declaring an unnamed class which implements the ClickHandler interface. When run, an instance of the class will be created and passed to addClickHandler.

TAG : java

Date : October 14 2020, 01:11 PM , By : corpapp.ru

Is it OK to write a constructor which does nothing?

this one helps. You don't need to write an empty contstructor; the Java compiler will automatically insert one for you (only if you haven't defined any other constructors that take some args).So it's quite okay (and useful in some situations) but it'

TAG : java

Date : October 14 2020, 01:11 PM , By : jfe

Automatically go to a Class in eclipse from Instance

I wish this help you Hold down control and click on the class name.You can also go to specific methods from method calls by using the "Open Declaration" functionality. So hold down control and click on some() and it will take you to that method's dec

TAG : java

Date : October 14 2020, 01:11 PM , By : user3852903

How do I set the Eclipse build path and class path from an Ant build file?

may help you . I've never found a really clean way to do it, but one "hackish" way to do it is to manipulate the .classpath file eclipse uses (this contains the build path).So the .classpath is going to have stuff in it like this:

TAG : java

Date : October 14 2020, 01:11 PM , By : maciejtatol

Why doesn't JAXB handle namespaced child elements properly?

I hope this helps . The solution (without modifying the generated classes) to the problem was to make sure that the

TAG : java

Date : October 14 2020, 01:11 PM , By : stack-3472

Fingertip drawing applications on Android?

I wish did fix the issue. The ApiDemos that come with the SDK have an example called TouchPaint that does exactly this... it's a simple little finger drawing app. The source is actually very easy to read and it shows all of the basics.

TAG : java

Date : October 14 2020, 01:11 PM , By : typau

What's a good way to represent and store data in Java's RecordStore?

hope this fix your issue For every object you want to save in the RecordStore, pare it down to its component Strings and primitives, then serialise it to a byte array, using a ByteArrayOutputStream wrapped in a DataOutputStream. Then write this byte

TAG : java

Date : October 14 2020, 01:07 PM , By : Ching Chang

Strange behavior: Java escape euro sign

hope this fix your issue I think I solved it.In Eclipse there is encoding cp1252 for the java file. It looks the same as ISO-8859-1 but at runtime the result is different. By configuring file encoding to cp1252 it works again.

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853177

How to store tree structures in Java?

seems to work fine When I first encountered this problem, I've found the great article (link).In tho words: in RDBMS world there are 2 main tree model storage approaches:

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853176

Facing NullPointerException while using BIRT

it fixes the issue I faced a similar problem and got out of it reading Report Engine API documentation page.Some fundamental things are:

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853168

Java classloader

Hope that helps You can't load a .java file as class. You should load a .class file (which means it should be compiled first)

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853097

Issue while loading a dll library file... java.lang.UnsatisfiedLinkError: Can't load library

like below fixes the issue I work for the company that makes the product you're trying to use. We've seen this error when it's been installed against an incompatible version of the underlying layer we ship with it, because of missing dependent DLLs a

TAG : java

Date : October 14 2020, 01:07 PM , By : Nicole

SimpleJdbcCall ignoring JdbcTemplate fetch size

I wish did fix the issue. I'm not sure how much the getFetchSize() method on ResultSet can be trusted. JdbcTemplate calls setFetchSize() on the Statement, and assumes the JDBC driver will do the right thing with it, including propagating it to all Re

TAG : java

Date : October 14 2020, 01:07 PM , By : Tamim Tahhan

Custom Java JTree implementation

I wish this help you So for this purpose, Is the JTree (with its nodes as checkboxes) correct option to implement or I should use some other JComponent?

TAG : java

Date : October 14 2020, 01:07 PM , By : Brode

Error in create back up in mysql through java program

wish helps you , try the longer version

TAG : java

Date : October 14 2020, 01:07 PM , By : suvsuv

Where can I find Java API code

Hope that helps You can find it in the src.zip in the JDK installation directory.From Java docs:

TAG : java

Date : October 14 2020, 01:07 PM , By : J. Plaquevent

Can you publish a .war directly from eclipse to a web server

seems to work fine yes you can.right click on the project, select export -> select web - > then war and give destination which is your deploy folder.

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853053

open source image processing lib in java

To fix this issue There are a number of options out there, each with their own features and drawbacks. If you want to discuss your needs in more detail, I can touch on the specific attributes of each library as it relates to your project: ImageJ - ht

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853050

What are the alternatives of JMS?

Hope that helps It depends on what you are trying to do. For use in the same jvm you could use a BlockingQueue You could have a look at Terracotta for some of their shared network maps for e.g.

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853043

Regarding Java String dollar to cents conversion

help you fix your problem I would most definitely not do this with regexps, because that leads to needlessly complex and error-prone code. The Java standard API offers a much simple solution:

TAG : java

Date : October 14 2020, 01:07 PM , By : rodf1021

When should I use "this" in a class?

Hope this helps The this keyword is primarily used in three situations. The first and most common is in setter methods to disambiguate variable references. The second is when there is a need to pass the current class instance as an argument to a meth

TAG : java

Date : October 14 2020, 01:07 PM , By : ThinkTG

Apache Mina Server Restart java.net.BindException: Address already in use

wish help you to fix your issue I'm not sure of the root cause, but I read somewhere a fix for this that seems to work for me:

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853322

What is "logger" in Java?

wish help you to fix your issue I have a class in which I see the following things: , The logger doesn't make anything special. It's all just Java code.

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853320

Reset Java Applet on Reload

I wish this help you Each time you build a new Jar applet add a build number to it, eg applet.jar?build=123 or build123/applet.jar. This is good practice for deployment too as it removes all cache concerns and this can probably be simply automated by

TAG : java

Date : October 14 2020, 01:07 PM , By : Adnan Malik

Generating Java classes out of XMLSchema.xsd using JAXB

like below fixes the issue Fighting such stuff as well, for me it is case-sensitivity issue and the same name for element and attribute issue (thru inheritance sometimes). For the second problem I'm using external binding file that contains something

TAG : java

Date : October 14 2020, 01:07 PM , By : ipcress

Call JNI methods that were not written for your class

may help you . It seems that JNI methods need to be written with the Java class signature built in to them. I want to call a JNI method that I didn't write. Can I call a native method on a library that was not written with my class in mind? , Given:

TAG : java

Date : October 14 2020, 01:07 PM , By : Juan De Luna

Java collections that spool to disk

I wish this help you You could try something like ehcache and its overflowToDisk option

TAG : java

Date : October 14 2020, 01:07 PM , By : Michael

Is there a way to determine if Java System.in is "interactive"?

may help you . AFAIK, there is no way to do this in pure Java, and even doing it in JNI / JNA would be complicated.An alternative might be to use the new Console API introduced in JDK 1.6. This allows you to try to get a reader/writer for the console

TAG : java

Date : October 14 2020, 01:07 PM , By : Jamie

JToggleButton not painting

wish helps you I might override paintComponent() in JToggleButton, or perhaps just use setIcon().Addendum: Be sure you're running on the EDT and overriding paintComponent() correctly. The following short, complete, compilable example (sscce) works re

TAG : java

Date : October 14 2020, 01:07 PM , By : Mohamed Amine El Mot

Java website protection solutions (especially XSS)

I hope this helps you . To minimize XSS attacks important thing is to encode any field data before putting it back on the page. Like change > to > and so on. This would never allow any malicious code to execute when being added to the page.I think yo

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853407

Java SSL sockets without authentication or stores?

To fix the issue you can do To reiterate Chris Jester-Young's advice - if you don't have authentication, then you might be communicating securely, but you have no idea who you're communicating securely with. You could simply be communicating very sec

TAG : java

Date : October 14 2020, 01:07 PM , By : Ginarton

ToStringBuilder doesn't print contents of nested objects

I hope this helps you . Because it does not generate toString recursively. Either look for another tool, or just implement (or, better, IDE-autogenerate) the ObjecttoString() for all of them yourself.For example:

TAG : java

Date : October 14 2020, 01:07 PM , By : Elegant

How can I force a SAX parser to use a DTD if one is not specified in the input file?

wish of those help I think it is no sane way to set DOCTYPE, if document hasn't one. Possible solution is write fake one, as you already do. If you're using SAX, you can use this fake InputStream and fake DefaultHandler implementation. (will work onl

TAG : java

Date : October 14 2020, 01:07 PM , By : user3853388

How to create a file in java without a extension

wish of those help Is it possible in java to create a file without extension , You can try

TAG : java

Date : October 14 2020, 12:44 PM , By : joleneth

Limiting the size of a HTTP post request on JBoss

should help you out maxPostSize defines how big a POST can get before Tomcat will "automatically" parse it, whatever that means.If you're doing this for security reasons, you need to think twice about how you do it. A DOS attack isn't going to conven

TAG : java

Date : October 14 2020, 12:44 PM , By : user3853671

How should I declare a constant set visible for every instance of the class?

Hope that helps Do you want to add elements to your set once and then only read its contents or do you want to be able to add elements to it at any time? If you create it once, do it like this:

TAG : java

Date : October 14 2020, 12:44 PM , By : tade

Java: Doing one's own data type? (eg. long long double?)

may help you . Take a look at BigDecimal

TAG : java

Date : October 14 2020, 12:44 PM , By : wahni

Interplay between visibility of class and fields

wish helps you The most restrictive visibility applies. The answers to your questions are: Yes. Package only.

TAG : java

Date : October 14 2020, 12:44 PM , By : Nitish K Ojha

how to catch and throw errors in JSP

should help you out Exceptions in JSP cannot be handled nicely, because it's too late to change the response. JSP as being a view technology is responsible for the whole response at its own. It sends the response headers and the response content. Whe

TAG : java

Date : October 14 2020, 12:44 PM , By : Tony

HttpUrlConnection Post causes the browser to download the response JSON in Java Proxy

I hope this helps you . I guess the problem is more in the client side or a misconception in your side. It's correct behaviour if the browser prompts to download the file when it has a content type of application/json, because the browser itself does

TAG : java

Date : October 14 2020, 12:44 PM , By : user3853585

Lock Acquisition Order

may help you . The lock in this case is on this so there is only one lock, that being the instance. If there are more than one instance, each has an entirely separate lock regardless of whether it is a Widget or a LoggingWidget.Let me put it another

TAG : java

Date : October 14 2020, 12:44 PM , By : xemeemax

Adding libraries in Eclipse JAVA with MAC OS

it fixes the issue Select a project > (menu) Project > Properties > Java Build Path > Libraries > Add External JARs

TAG : java

Date : October 14 2020, 12:44 PM , By : Alejandro Pérez Álva

unable to place breakpoints in eclipse

wish helps you Try to take a look at your configuration Java->debug->Step filtering sometime its enabled and you cannot stop inside a filtered package

TAG : java

Date : October 14 2020, 12:44 PM , By : user3853547

Monitor Spring java application

wish of those help javamelody: http://code.google.com/p/javamelody/ Easy to integrate but throws exceptions if a security manager is enabled.

TAG : java

Date : October 14 2020, 12:44 PM , By : Ullas Kumar

Passing multiple data values from one JSP to another

it should still fix some issue You can use request.getParameterValues("name") to get a String[] with all values (not just the first one.

TAG : java

Date : October 14 2020, 12:44 PM , By : user3853532