包含标签：Java 的文章
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Java – simple JDBC connection testing using JUnit
I want to simply test the JDBC connection. I don't use the framework, only JDBC and JUnit Can I perform this test with…… -
Is java 1.7 stable or beta?
I want to switch from 1.5 to Java 1.6, but I think it's best to use 1.7 instead of 1.6 Solution We are currently using…… -
Looking for a java code generation library
What is a "good" java code generation library? Solution There are several libraries with various functions and ease of…… -
Java – set password in sqlcipher
I want to create a new encrypted database with sqlcipher. Because of the following link, I don't really explain how to…… -
Java and python processes can exclusively lock the same files on Linux
I have a Java application and a python launcher Java applications use this code to lock files to avoid multiple starts…… -
Java – do not generate log files until Weblogic is restarted
I am developing an application deployed on Weblogic 10.3 It is packaged as ear and contains a module The application i…… -
Generics (and wildcards) in Java
I'm reading a book on Java. It tells me that the following two pieces of code are equivalent: public <T extends Ani…… -
java – file. canWrite(); file. canRead(); file. canExceute(); Although my file / directory does not have access rights, it always returns true
I need to check the permissions of the files / directories I use //filePath = path of file/directory access denied by …… -
Java – use the runtimemxbean instance and system Getproperties reads the difference between system properties
What is the difference between reading system properties in this different way RuntimeMXBean RuntimemxBean = Managemen…… -
java. io. Is filedescriptor #sync() specific to a single filedescriptor
I want to force synchronization to disk after writing files at some point in my application Because it runs on Linux, …… -
java – Class. Getresource (classname) gave me NullPointerException
I have built a platform - independent library and I want to use it in J2SE and Android projects In this library, I hav…… -
Java – filter collections using lambdaj
I have two classes: public class Order{ private Integer id; private List<Position> positions; ... } …… -
Java – Maven assembly plug-in: cannot retrieve digital file properties using the following command: ‘/ bin / SH – C LS – 1nlar
I'm on my OSX 10.7 5, and I have linked the directory with the Java source in OSX to the virtual Debian machine (using…… -
Java – find the content updated or inserted by MySQL query execution
My inquiry is as follows INSERT INTO MYTABLE (f1,f2,f3,f4) VALUES (1,2,3,4) ON DUPLICATE KEY UPDATE f4=5; I've achieve…… -
Java – hibernate SQLite does not create a database
This is my question: I have a desktop application using JavaFX hibernate SQLite This is my model: @Entity @Table(name …… -
Java – prevent SQL injection in JDBC without using pre prepared statements
I know that using prepared statements is the best way to prevent SQL injection (and syntax errors caused by non escape…… -
The Java program (Tomcat) continues to eat memory (RES at the top)
I run Tomcat on a 64 bit machine with 4-cpu and 32GB memory (the operating system is CentOS 6.3) My java options for s…… -
Java – libgdx – how to draw some pixels
I'm trying to change the pixel map and render it, but the modified pixels won't appear on the screen I'm not sure if p…… -
Java – listview update single line
Once I press the button, I want to update the single line in the list view with different content I know I can use not…… -
Java – why do I receive this error “unbound XML namespace prefix”
I almost wrote a simple Android application that seems to work well This is a small sample in one of my XML files:` &l…… -
Java pong game graphics or geom 2D
My first project was to create a game pong. Com in Java Here I calculate the angle of the ball after hitting the ball …… -
GDB explodes when debugging a multithreaded program that quickly forks and executes another program
I'm using GDB to debug my C program. It's a little unstable. Maybe it's because I don't use glibc, so it won't detect …… -
javafx-2 – JavaFX 2.2 FXML Validated TextField
I improved my previous textfield validation implementation, this time using binding for real-time validation It can be…… -
Java – combines JPA and JDBC operations in a single transaction
So I have an application with some legacy JDBC calls that I need to update with some additional JPA operations I need …… -
In type Java Property ‘someproperty’ not found on lang.string
I received this error and I couldn't figure out what the problem might be The "userid" column is located in the databa…… -
Java – jsonview annotation with include / exclude attribute
I have a use case where it seems more appropriate to use the jsonview annotation with exclusion information, for examp…… -
Java – handles schema changes when handling multiple functional branches
Is there another way or some tool to handle database schema changes in multiple parallel functional branches instead o…… -
Java – use Maven to add another project’s jar as a resource
In my project, I have a subproject automatic update program It is basically a jar file extracted and run when the upda…… -
Java – HTTP status when testing restful webservice404 using Jersey
I've been trying to develop and deploy a quiet web service using Jersey I've been following docs oracle. COM and other…… -
Print vowels with words in Java
I'm a beginner of Java. I'm learning this course and need some help Basically, the user will enter a string and the pr…… -
Java – extending annotated controllers in spring MVC
I'm developing a small project and have some existing code. I want to keep clearing my changes, so I need to extend an……