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• Is there an equivalent to BCEL (Java .class manipulation) but in C or C++

  - by Barry Kelly

  Is there a C or C++ compatible library for reading and writing Java class files? I.e. something like Apache BCEL.

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• Create Word/RTF file with table of contents from Java

  - by Glen

  Hi, I want to create a Word or RTF file with a table of contents (with links to each section) from Java. From my understanding, iText & Apache POI do not support generating a table of contents. Some clients of the app still use older versions of Word, so I need a library that supports the older Word doc format. Does anyone know how I can do this? Thanks, Glen

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• Java findout if current platform supports windowing

  - by JHollanti

  Is there way to find out if Java is running on a platform which supports windowing of any kind? I know that you could possibly figure it out by reading in the environment variables, but that might prove to be rather difficult with all the possible combinations.

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• Generating exactly prime number with Java

  - by Viet

  Hi, I'm aware of the function BigInteger.probablePrime(int bitLength, Random rnd) that outputs probably prime number of any bit length. I want a REAL prime number in Java. Is there any FOSS library to do so with acceptable performance? Thanks in advance!

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• Good-looking Java Swing Look&Feel?

  - by eric

  I'm working on an open-source Java Web Start application, and I'd like to give it a consistent theme across platforms. Metal is totally ugly, and I'm not particularly happy with Substance (esp. performance). What are the best Swing Look&Feel options out there today?

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• Is there something like find_if in Java?

  - by FredOverflow

  In C++, I can use find_if with a predicate to find an element in a container. Is there something like that in Java? The contains method on collections uses equals and can not be parameterized.

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• Java Deflater strategies - DEFAULT_STRATEGY, FILTERED and HUFFMAN_ONLY

  - by Keyur

  I'm trying to find a balance between performance and degree of compression when gzipping a Java webapp response. In looking at the Deflater class, I can set a level and a strategy. The levels are self explanatory - BEST_SPEED to BEST_COMPRESSION. I'm not sure regarding the strategies - DEFAULT_STRATEGY, FILTERED and HUFFMAN_ONLY I can make some sense from the Javadoc but I was wondering if someone had used a specific strategy in their apps and if you saw any difference in terms of performance / degree of compression. Thanks, Keyur

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• Can you recommend a lightweight java portlet software?

  - by Avi Y

  Hello, I am a long time java web developer but I am new to portlets technology. Currently I am in the stage of finding my options. I have tried Liferay and although it is very cool, it is a bit heavy for my needs. Can you recommend a more lightweight portlet container?

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• Create a Sorted Hash in Java with a Custom Comparator

  - by kunjaan

  I want to create a TreeMap in Java with a custom sort order. The sorted keys which are string need to be sorted according to the second character. The values are also string. Sample Hash: Za,FOO Ab,Bar

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• List MySQL enum in Java

  - by Pieter

  Is there a way to get all possible values from a MySQL enum column? The MySQL documentation says the MySQL enum type is returned as a Java String, so I basically would like a way to get all possible strings I can pass when querying a table with such an enum. I couldn't immediately find anything when I was looking through the metadata returned for such a column, but since enum isn't standard SQL, I'm not sure it's even possible... any suggestions?

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• Java class object from type variable

  - by Alexander Temerev

  Is there a way to get Class object from the type variable in Java generic class? Something like that: public class Bar extends Foo<T> { public Class getParameterClass() { return T.class; // doesn't compile } } This type information is available at compile time and therefore should not be affected by type erasure, so, theoretically, there should be a way to accomplish this. Does it exist?

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• java.lang.RuntimeException: Spurious serialisation error

  - by sandeep

  I had problem with my client program when I run my client in eclipse or netbeans, I get a runtime error java.lang.RuntimeException: Spurious serialisation error. But when i use command prompt I have no errors. Here is my client code http://pastebin.com/jUkw7F7k

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• How to sanity check a date in java

  - by Bloodboiler

  I find it curious that the most obvious way to create Date objects in Java has been deprecated and appears to have been "substituted" with not so obvious to use lenient calendar. So... How do you check that a date given as a combination of day, month and year is a valid date? For instance a date 2008-02-31 (as in yyyy-mm-dd) would be invalid date.

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• Java socket close timeout

  - by Shayan

  In java when you close a socket it doesn't do anything anymore but it actually closes the tcp connection after a timeout time. I need thousands of sockets and I want them to be closed exactly after closed them not after wasting my time and my resources! What can I do? Thank you.

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• Validate Boolean Query - java

  - by JavaUser

  hi, I need the java code snippet for the below logic: Following is a string and I need to validate the string based on the below condition : "100 or 200 and 345 not 550 " - Valid string "abc or 200 and 345 SAME ** 550 " - Not a Valid String 1 . the operands(eg 100,200 ..) should be positive numbers 2 . the operator should be and/or/not Thx

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• Create a java Date Picker component?

  - by Venkats

  I have the datepicker component in the format of MM/dd/yyyy, But I want to create date picker in java the form of dd/MM/yyyy. So where can I get the suggestion or related solutions. Please give the basic idea about that. Thanks in Advance..

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• Java - why no return type based method overloading?

  - by llm

  I know this is not possible but can anyone provide a theory as to why Java chose not to support this? I am asking because I just ran into a situation where I think it would be nice to have.

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• Java programs using NIO framework

  - by peng

  Hello, everyone I am doing some research related to Java NIO. I need to find some representative applications that are based on this framework. Please feel free to suggest! The more, the merrier! Thanks

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• any RAD tool for java app development ?

  - by fwfwfw

  is there some RAD tool for creating java apps with event driven flow ? basically like visual basic.

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• try/catch on stack overflows in java?

  - by stereos

  Can you try/catch a stack overflow exception in java? It seems to be throwing itself either way. When my procedures overflows, I'd like to "penalize" that value.

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• Extract german zipcode from line in Java

  - by tzippy

  hello! I need to extract the zipcode from file's line. each line contains an adress and is formatted in a different way. eg. "Großen Haag 5c, DE-47559 Kranenburg" or "Lange Ruthe 7b, 55294 Bodenheim" the zipcode is always a five digit number and sometimes follows "DE-". I use Java. Thanks a lot!

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• Running out of memory while analyzing a Java Heap Dump

  - by Abel Morelos

  Hi, I have a curious problem, I need to analyze a Java heap dump (from an IBM JRE) which has 1.5GB in size, the problem is that while analyzing the dump (I've tried HeapAnalyzer and the IBM Memory Analyzer 0.5) the tools runs out of memory I can't really analyze the dump. I have 3GB of RAM in my machine, but seems like it's not enough to analyze the 1.5 GB dump, My question is, do you know a specific tool for heap dump analysis (supporting IBM JRE dumps) that I could run with the amount of memory I have? Thanks.

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• Java Equivalent to .NET's DateTime.Parse?

  - by Superdumbell

  I'm working on a java class that I will use with Pervasive Data Profiler that needs to check if a Date String will work with .NET's DateTime.Parse. Is there an equivalent class or 3rd party library that can give me this functionality that is very close to .NET's DateTime.Parse?

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• Java Webstart...interaction with browsers on different platforms

  - by milesmeow

  This post is similar to this post, but not exactly, so I'm asking this question. How does one go about, From a Java WebStart app: launch a new browser window with a target URL? bring an existing browser window into focus with a target URL? Is the solution OS/platform independent? Does it matter which browser you're talking to?

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• Java - Interfaces

  - by RayAllen

  I had a doubt .. Why do we need interface in Java ? Instead of interface can't we write the methods in the class itself ? Why do we need seperate interface?

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