Java
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How to eliminate the gap between large Java Swing Tags
In my application, I have a label with a font size of more than 200 This label contains large up and down (irregular) …… -
Java – configure spring security to use custompasswordauthenticationfilter
I have implemented my own lowercaseusernamepasswordauthenticationfilter, which is just a subclass of usernamepassworda…… -
Java: socket read timeout exception
I tried to call a very heavy process When I execute this process, I set a ridiculously large number of timeout times: …… -
Java syntax sugar
I came across this code block today. I don't know how it works I know how to do anonymous classes, but I'm used to see…… -
Java – how to convert string arrays to objects using gson / JSON?
I have a JSON like this: [ [ "Passport Number","NATIONALITY","REASONS" ],[ "SHAIS100","INDIA","" ],[ …… -
Can I use two Java classes with the same name and the same package?
Can I import and use two different classes with the same name and package in Java? For example, suppose I have two cla…… -
Java – how to use in Net?
Lucene is a good search engine, but Net version is the official JAVA version (the latest stable. Net version is 2.0, b…… -
Java Double vs double：class type vs primitive type
I'm curious about the performance difference between Java classes and primitive types So I created a small benchmark a…… -
How to get the source code of web pages from Java
See English answers > How do you programmatically download a web page in java8 > http://www.cumhuriyet.com.tr?hn…… -
Java – thread exit and uncapped exception: no stack trace
My application is causing a forced shutdown somewhere instead of using the usual (and very informative) stack trace in…… -
Java – hide the program in the windows system tray
I want my program to display an icon in the taskbar status area near the clock in windows and find a way The thing is,…… -
Deadlock in Java: when occurs
I'm developing an application for J2ME. Sometimes it's completely frozen. AMS takes a long time to close it In my opin…… -
Although the serializable interface in Java has no methods and no fields, it can realize its functions What about?
Although Java io. Serializable interface public interface serializable {} surprisingly does not contain any methods an…… -
Java – can I specify a class wide group on a TestNG test case?
I have a base class to represent database tests in TestNG. I want to specify that all classes extended from this class…… -
Java – how to clear bad characters that are not suitable for utf8 encoding in MySQL?
I have dirty data Sometimes it contains characters like this I use this data to query WHERE a.address IN ('mydatahere'…… -
Java’s better way to delete files (if any)
We need to be in file Delete () before calling file. Exists() before deleting the file File file = ...; if (file.exis…… -
Connect some in Java Txt file [closed]
I have some Txt file I want to connect them and generate a text file How will I execute in Java? file1.txt file2.txt C…… -
Why is timeunit Java util. Members of concurrent?
Java's timeunit enumeration is useful for many different tasks related to time, not just concurrency; And other time r…… -
Get string size in Java (no graphics object available)
I'm trying to write an application that needs to draw many strings using the graphics2d class in Java I need to get th…… -
Java – code object o = true? New integer (0): new long (1) returns long with a value of 0 Why?
See the English answer > java conditional operator?: Result type5 Object obj = true ? new Integer(0) : new Long(1);…… -
How to get datasource or connection from JPA2 entitymanager in Java EE 6
I have a working application that I use Java EE 6 with eclipse link persistence and a PostgreSQL database For user reg…… -
Java – JPA onetoone bidirectional
I have two entity classes with @ onetoone relationships The example code is as follows: public class A { @Id private i…… -
Java – how to redirect AWS SDK log output
Even if I'm using logback and configuring it, I keep getting stdout I can't get AWS out of the console Jun 19,2014 3:4…… -
Create Java Native methods for constructors
I'm writing a program in Java. I want to create a native interface for the library written in C But I'm confused about…… -
Close resultset in Java 7
See English answers > must JDBC resultsets and statements be closed separately although the connection is closed af…… -
Java – when to select JMS API through UDP socket API and vice versa?
It can motivate programmers to use the Java JMS (Java Message Service) API instead of Java in distributed Java applica…… -
Java – how to track row indexes after JTable has been sorted by users?
I have a JTable with the first line blank Now, when I sort the columns by clicking on the column, the blank row is at …… -
Embedding a web browser window in Java
Does anyone know to open an instance of a platform (Windows / Linux / MAC) browser in a swing window integrated into a…… -
How do I use java to capture selected screens from other applications?
We are trying to develop a screen capture utility How do we use java to capture the selected screen of another applica…… -
Natural language processing solution in Java
See English answer > is there a good natural language processing library [closed] 3 Solution The two popular I know…… -
Audio / video capture in phonegap / Cordova using external Java plug-ins
I am developing an Android application using phonegap / Cordova and JavaScript I want to use an external Java plug-in …… -
Generating patterns from entities using JPA2 hibernate eclipse 4.2 MySQL 5.5
I'm new to hibernate / JPA, and I insist it's the last step Solution If you are using hibernate, you can: >Set "hib……