Java 归档 - Page 58 of 655

Java – JDO: is persistence manager a singleton?

Just the basics: I use datanucleus to support embedded db4o databases If I do this simple test: PersistenceManager pm1……

Java

2020-09-04

Java – how can two Android applications share the same user ID?

I remember reading somewhere that you can let two Android applications share the same user ID, but I heard conflicting……

Java

2020-09-04

Java – can we use conditions in URL mapping of servlet filter

Can I use the not condition as the URL mapping value of servlet filter? Solution No, it's impossible You can add this ……

Java

2020-09-04

Dynamically set the maximum heap size of the java process

I have a java program started by a batch file, and its line is as follows: javaw -Xms64m -Xmx1024m com.acme.MyProgram ……

Java

2020-09-04

java – android spinner NullPointerException

Hey guys, I'm in trouble with a spinner that throws nullpointerexpression. Am I sure I missed something stupid? Thanks……

Java

2020-09-04

Java – string as document

I'm focusing on parsing XML using XPath. It gives the following example to open a document: DocumentBuilderFactory dom……

Java

2020-09-04

Java – Maven 2 compiles my tests, but does not run them

I have a simple Maven 2 project that contains tests written for TestNG When I say MVN test Maven 2 compiles my tests b……

Java

2020-09-04

Java file I / O throughput drops

I have a program in which each thread reads multiple lines from a file at once, processes lines, and writes lines to d……

Java

2020-09-04

Get superclass value in Java

I have two classes: public class A { int n = 10; public int getN() { return n; } ……

Java

2020-09-04

Java – put exceptions in your own sub package?

In the current package I'm working on for the project, I have about 13 different custom exceptions Is it a good idea t……

Java

2020-09-04

Multithreading – boost:: threads and template functions

I tried to run the template function on a separate thread, but IntelliSense (VC 2010 express) kept giving me an error:……

Java

2020-09-04

Replace all escape sequences with non escape equivalent strings in Java

I have a string like this: <![CDATA[<ClinicalDocument>rest of CCD here</ClinicalDocument&a……

Java

2020-09-04

Java method call parser?

I need to resolve some method calls, including the entire signature in some Java classes, for example: public class My……

Java

2020-09-04

How do I stop selenium server from ant task forked from ‘Java’ target?

I write an ant target, start selenium server, run my test code, and then... I want it to stop selenium How do I track ……

Java

2020-09-04

Java – Android – end activity within rendering thread

Good afternoon. I am not familiar with the activity life cycle in Android and read it as much as possible, but I can't……

Java

2020-09-04

Java – JPA – using annotations in the model

My application runs on JPA / Hibernate, spring and wicket I'm trying to convert our ORM from XML file to JPA annotatio……

Java

2020-09-04

Java: modifying system properties through runtime

I have a running jar file It is selenium RC server I want to be able to change the JVM httpproxy Host / port / etc sys……

Java

2020-09-04

Extensible, low overhead, high performance Java persistence framework

I look forward to building a website / application The class model has about 100 objects and is not particularly compl……

Java

2020-09-04

Which Java Web service framework do you prefer?

I'll implement web services in Java, but before I do, I'll decide which framework to use Simple and in JBoss 4.2 It is……

Java

2020-09-04

Java – Validation does not apply to entitymanager merge()

I rarely verify my entities, such as @ notnull, and some generations, such as @Id @GeneratedValue(strategy = AUTO) @Co……

Java

2020-09-04

Help Java hash mapping

Can someone explain what happened in the following code and how it ended with 36? thank you Edited by Amir rachum publ……

Java

2020-09-04

Java – why can’t I create restful web services in EJB modules?

I use NetBeans 6.8 I can see the option to create web services in my independent EJB module, but I can't seem to find ……

Java

2020-09-04

Sound format of game based on Java

I'm developing a java game that wants to bundle and play some sampled sound effects I'm going to use standard javax so……

Java

2020-09-04

Java – JUnit: Best Practices for developing test cases?

Technology: latest version of JUnit Some people use hard coded data in test cases, others use attribute files and some……

Java

2020-09-04

Java – language level threads

I'm reading about threads, and many books say that Java supports language level threads, and through Java util. The co……

Java

2020-09-04

Java – ide style program running

My goal I'm trying to create a java program that users can choose from any of their computers Class or Jar file Then m……

Java

2020-09-04

Java – is it a good idea to nest a class in an interface?

Is it possible to have an internal class inside the interface in Java??? Solution You can But that's what O'Reilly sai……

Java

2020-09-04

How to save map objects in Java to MySQL database

I have Java map (string and ints) objects and I want to save them to the database Solution You actually asked two diff……

Java

2020-09-04

Java – how does my jar open itself as a stream?

I'm trying to open a jar as a stream, but I can't understand where to get this stream JarInputStream s = new JarInputS……

Java

2020-09-04

Building timezone objects in Java

I use the timezone string to build Java timezone objects, such as GMT-8, GMT, PST, EST, etc So if I get inputs like PS……

Java

2020-09-04

Java – should it be in struts All operation classes are listed in XML

Whether it should be in struts List all operation classes in XML? If the action classes are not listed in the struts 2……

Java

2020-09-04

Java – Apache commons mathematical optimization

Does anyone have any experience with the Apache commmons math optimization package? More specifically, the implementat……

Java

2020-09-04

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Java – JDO: is persistence manager a singleton?

Java – how can two Android applications share the same user ID?

Java – can we use conditions in URL mapping of servlet filter

Dynamically set the maximum heap size of the java process

java – android spinner NullPointerException

Java – string as document

Java – Maven 2 compiles my tests, but does not run them

Java file I / O throughput drops

Get superclass value in Java

Java – put exceptions in your own sub package?

Multithreading – boost:: threads and template functions

Replace all escape sequences with non escape equivalent strings in Java

Java method call parser?

How do I stop selenium server from ant task forked from ‘Java’ target?

Java – Android – end activity within rendering thread

Java – JPA – using annotations in the model

Java: modifying system properties through runtime

Extensible, low overhead, high performance Java persistence framework

Which Java Web service framework do you prefer?

Java – Validation does not apply to entitymanager merge()

Help Java hash mapping

Java – why can’t I create restful web services in EJB modules?

Sound format of game based on Java

Java – JUnit: Best Practices for developing test cases?

Java – language level threads

Java – ide style program running

Java – is it a good idea to nest a class in an interface?

How to save map objects in Java to MySQL database

Java – how does my jar open itself as a stream?

Building timezone objects in Java

Java – should it be in struts All operation classes are listed in XML

Java – Apache commons mathematical optimization

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