Recent Posts
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Lucene in Java, C # Net and C. which is the best version for long-term use on Windows Servers?
I will implement Lucene search into my project. I want to make the best start 1、 Performance 2 Easy to implement 3 Ma…… -
Java – gets the case sensitive name of the file, not case sensitive spelling
I am creating an application from which users can select files: FilePicker. Pickfile (file name) Where filename is a s…… -
Java – what is this language feature called?
JPanel panel = new JPanel() { JPanel panel = new JPanel() { public void setBackground(Color c) { Lo…… -
Java – GWT – fancy Google style buttons?
I'm curious, is there any way to style buttons in my GWT application so that they look the same as they behave in Gmai…… -
Java – reference to ArrayList element
I tried to get a reference to the ArrayList element, but I failed ArrayList<String> test = new ArrayList<Stri…… -
Java – sequencegenerator problem for unit testing in HSQLDB / H2
I've tried to use HSQLDB and H2 for unit testing, but I'm facing the problem of sequence generator The field declarati…… -
Java – how to append two bytes to int
I tried to append two bytes with hexadecimal values and store them as integers Obviously, everything is an unsigned va…… -
Java – modify color selector panel
I am creating a color selector and need to modify one of the color selector panels What I want is that I want to input…… -
Java – JPA / Hibernate has too many increments for Oracle sequences
I use hibernate on my java project. I have Oracle dB For an ID column, I determine a sequence with an increment of 1 B…… -
Java – Jfilechooser in JPanel; How to let users choose
The default Jfilechooser works, but what I don't like is the fact that it pops up I'd rather have a GUI where all the …… -
Java – can the modified quicksort be the best case of O (n)?
It is generally believed that the best case for quick sorting is O (nlogn), because each partition of the array is abo…… -
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 …… -
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…… -
Java – although the type is the same, I get the ClassCastException event Why?
I'm not very new to Java, although I've never really used sets before, I have the following questions; But first, this…… -
Java – use clickhandler with elements
I need to add an anchor with a specific clickhandler to the element How can I solve this problem? Element th = DOM.cre…… -
Java – how do I move entities to X and y?
I'm looking for a way to move my entity (bullet) to X and y, which is the player's position when the bullet is fired S…… -
Is java – atomicinteger implemented based on JNI?
Soneone told me that atomicinteger is implemented using JNI, so it is much faster than synchronization It's true? Solu…… -
Java – when should I use multiple instances of Solr?
I need to index three completely unrelated elements (such as product, blog post, location) Solution If you have three …… -
Use runtime What is the reason for “the system cannot find the specified file” caused by exec? (Association / ftype)
Who knows why these two statements cause the displayed exception? Runtime.getRuntime().exec("assoc .vlan=\"file type d…… -
How to replace monies in dual java with BigDecimal
I'm doing a college job. I use double money I know that double currency values are not recommended, so I want to know …… -
Exception in thread “main” Java lang.RuntimeException：Stub
Hey, guys, I got this strange mistake. I can't figure out why? package com.androidbook.services.httpget; import java.…… -
Import nanos into Java sql. Timestamp
http://docs.oracle.com/javase/6/docs/api/java/sql/Timestamp.html The only ctor that doesn't belittle needs millis Is t…… -
Multithreading – how do I call runnable using the spring framework?
I have a service that needs to call the runnable class Here are the lines of code used in my service @Autowired privat…… -
Simple java Pokemon extinguishing simulator
I wrote a class to create and fight Pokemon, but I couldn't figure out how to call the battle method in the tester cla…… -
The compressed (zipped) folder is not a valid Java folder
I'm trying to use zipoutputstream to compress files from the server into a folder sourceFileName="./file.txt"' …… -
Symfony – complex doctrine2 query with optional parameters
I want to know the best way to query the database with optional parameters For example, I have a search, its name, loc…… -
Elusive JAVA memory leak
I have a Java application based on lwjgl I render terrain with nine vertex buffers arranged in a 3 x 3 mesh When the c…… -
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…… -
Model view controller – uses multiple interfaces with MVC dataannotations and metadatatype
I am using data annotations to apply validation to MVC ViewModel, which is a combination of several Entity Framework o…… -
Java – different APK signatures in Android
I have a problem I program on two different computers. When I change from one computer to another, I try to run an app…… -
Java: string length when displaying square root using Unicode outline?
In Java, I created a string using Unicode and outline because I tried to display the square root of the number I need …… -
Data loss in file transfer – Java?
I have a fileserver and a fileclient. The server sends files when the client connects This is a simple program, just t……