包含标签：Java 的文章
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Java – JPanel freezes my entire application when trying to draw
I'm writing the school project of Oregon Trail, and I'm implementing the hunting mini game We are using a model view d…… -
How to read large files in Java as blocks without being blocked?
Suppose you have a larger file and you have memory to process it You want to read n-byte files in turn and will not be…… -
Java – how to distinguish whether two IPS belong to the same computer?
We have client main programs and agents (both) on different computers The network configuration can be any type (we do…… -
Java – how to get “real” exceptions in JUnit instead of ejbexceptions when using ejbcontainer?
I am setting up unit tests in my Java EE application I am using JPA, JSF, NetBeans and GlassFish It is also my first r…… -
Java – JTable line color depends on the value in the model?
I have this code in the table model: public class DocumentProjectTableModel extends AbstractTableModel{ private L…… -
Java – Rewriting interface methods
For interfaces such as public interface something<T> { public something<T> somemethod(); } From my unde…… -
Java – spring aggregation jar
Is there a jar file aggregating spring 3.0 All the small jars in the 6 distribution, like those I know jetty exists? S…… -
Using HTML5 Video Tags in JavaFX applications
I have a simple JavaFX application that loads a web page in the WebView component StackPane root = new StackPane(); Sc…… -
Java – JScrollPane – auto scroll to bottom?
I've been trying to create a scrolling pane that automatically scrolls down when users add more lines of text to the w…… -
Java – does the applet not display at all?
OK, so I did a small applet tutorial. I read the init () method required to run the applet Such is the case. At least …… -
Entity Framework – Entity Framework 4.1: the navigation property ‘businessuser’ declared on the ‘Login’ type has configured the multiplicity of conflicts
I have two entities BusinessUser { Id(PK),Name,...} Login { BusinessUserID(PK,FK),Email,Password,etc...} The relation…… -
Exception of Java – propertymodel expression: org apache. wicket. Wicketruntimeexception: no get method defined for class:
I use propertymodel as part of dropdownchoice, as follows: List<String> choices = Arrays.asList(new String[] { "…… -
MVC in Java only needs to point in the right direction
I'm not a rookie in programming I have written in one language or another for 20 years Just not in Java My main langua…… -
Java – display buttons at specific coordinates
How do I display the (x, y) of a button or JButton window at a specific coordinate? Solution Although you can use setl…… -
java – MediaPlayer. Create() always returns null
I've used a media player before and I've never encountered this problem Whenever I try to use mediaplayer When create(…… -
Java – JPA subclasses referenced by multiple different parent classes
I encountered the following ORM problems: I have two grades A and B, and they all have a group of grades C: class A { …… -
Java – add graphics to JFrame using borderlayout
I'm trying to do a simple job where I display a line of text to show whether the door object is open Below it, I visua…… -
Object size in Java
Suppose I have: Class A{ int a; } A obj = new A(); Then what is the size of obj? Is it the same size as int, just …… -
Java – add jpanels of other classes to CardLayout
I have three windows in three separate classes. I want to use CardLayout so that when you click the next button, the n…… -
Java – eclipse supports refactoring
Can eclipse do this refactoring? Suppose I have a class with a list: class DomainObject { private List list; p…… -
Play Framework 2.1(Java)eBean @Encrypted Annotation Errors
I'm trying to use the ebean @ encrypted annotation on the string field for the database model The document makes it lo…… -
Java – dagger: field injection in POJO
I've never tried guide or other Di libraries, but I've tried to use the dagger from square for Android application It …… -
Java – automatically opens the print dialog box when opening PDF using iText
I need to be able to automatically provide a print dialog when opening PDF I need JavaScript to do this. I wonder if i…… -
Java – pass a map or object from a JSP to a servlet
I have an application that passes the mapping from servlet to JSP In JSP, I display the map and provide the option to …… -
Java – how to use enum in the right way?
I like Java very much. I use enumeration for the first time, as shown below: public class Web { public String …… -
Writing XML documents from Java – simple
I know there are many problems in writing XML from Java on stack overflow, but it is too complex I think I have a very…… -
Database – when using JPA, avoid stale data from DB?
The problem I encountered is similar to that described in the invaliding JPA entitymanager session: Problem: getting s…… -
The Java class file was not created in the classes folder
I am compiling a java program with the following command: Ironically, the generated class file is created in the same …… -
Running Axis2 v.1. With JRE 5 / 6 6.2 what jars are needed to generate the client?
Which jars in the Axis2 distribution (version 1.6.2) are required to run the generated WebService client? There are se…… -
Java – “equality test with Boolean text” – test the difference between Boolean values and usage==
See English answers > Boolean checking in the 'if' condition 10 For this Code: boolean valid; if(valid == true) You…… -
Java – get question mark when inserting Hebrew characters into MySQL table
I am using NetBeans, using java to build web applications, and JSP uses Hebrew fields to process databases DDL is as f…… -
Java – add timeout function to swingworker
I will have to implement some functions for my application soon, timeout according to the length specified by the user……