Java
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Java – how do I add EJB functionality to an eclipse dynamic web project?
I am using EJB 3.0 to develop a simple application, using openejb for deployment and eclipse as ide development I crea…… -
java – PostgreSQL：BYTEA vs OID Large Object？
I started using hibernate 3.2 and PostgreSQL 8.4 applications I have some byte [] fields mapped to @ basic (= PG bytea…… -
Java – definition of class level annotation is the class loader always the parent of the class’s startup class loader?
The assumptions are as follows: @SomeAnnotation public interface Foo { } I want to know whether the definition class l…… -
Java – remove URL prefix (http: /, WWW, etc.) from string [closed]
I need to remove various "web beginnings" from my string My textview must not have "http: / /", "http: / / www.", "www…… -
Java: simple soap client
I am looking for a soap client for Java Apache axis looks blo swollen to me I don't understand why Java has to be so c…… -
The best way to do raw socket programming involving Java
I have some existing C code. I use ICMP raw socket for Ping. I need to use this code in Java because Java does not sup…… -
Java – how to set each character to a different color / background color in jtextpane?
I have been looking for this period of time. So far, what I have been able to think of is how to create a style and ap…… -
Java – Scala is equivalent to the new HashSet (Collection)
What is the equivalent Scala constructor (to create immutable hashsets) to Java new HashSet<T>(c) Where C is col…… -
Use Java (JSON) to read the values of nested keys in JSON
I am a new Java programmer with Python background I have weather data being collected / returned in JSON, which contai…… -
What’s the difference between Java – jolokia & jmxtrans? When to choose one?
I am looking for a JMX query tool I met jolokia & jmxtrans, both of which support JSON - based queries Jmxtrans ha…… -
Java, setting ID for JButton
Set the ID for JButton anyway. I'm used to Android I am looking for the following: newButton.setId(objectcounter); Sol…… -
Java – synchronize on values, not objects
I want to do this in Java public void giveMoney(String userId,int money) { synchronized (userId) { Profil…… -
In computing Java util. Description of constants used when hashcode value of hash
Someone can explain the meaning of these constants, why choose them? static int hash(int h) { // This function…… -
Java – how to programmatically register JSF managed beans?
I want to programmatically register / add the managed bean class to the application scope (from servlet init()) Soluti…… -
Simple understanding of Java abstract classes
In the top-down inheritance hierarchy, the classes at the upper level are more generic and may even be more abstract. …… -
Talk about the storage mode of integer type (short int long) in Java
There are four integer types in Java, namely byte short int long, where byte has only one byte 0 or 1, which will not …… -
Java class definition and execution sequence learning tutorial
Class must be defined before it can be used. Class is a template for creating objects. Creating objects is also called…… -
Detailed explanation of java file and directory management and input and output related operations
File and directory management in Java Directory is a special mechanism for managing files. Saving similar files in the…… -
Java connects to MySQL database through JDBC
JDBC (Java Data Base Connectivity) is a Java API used to execute SQL statements. It can provide unified access to a va…… -
Summary of database connection based on JDBC in java development
This paper describes the method of connecting database based on JDBC in java development. Share with you for your refe…… -
How to use the super keyword and instanceof operator in Java
Java super keyword super keyword is similar to this keyword. This is used to represent the instance of the current cla…… -
ASP. Net catering management system production code sharing
Page introduction display: The above is a picture introduction of the production of the catering management system, fo…… -
This paper introduces the architecture, installation and configuration of Java spring framework
Architecture spring has the potential to become a one-stop service for all enterprise applications. However, spring is…… -
Analysis of adding, deleting, updating and finding examples of JDBC operation database
This paper describes the methods of adding, deleting, updating and searching JDBC operation database. Share with you f…… -
Overload of methods that Java must learn and learn
1、 Method overload The method name is the same, but the parameters are different. This is overload. The so-called par…… -
Explain in detail the definition and life cycle of beans in Java’s spring framework
The definition of beans forms the backbone of the application. The objects managed by the spring IOC container are cal…… -
Java most complete file operation example summary
This example summarizes java file operations. Share with you for your reference, as follows: 1. Create a folder 2. Cre…… -
Introduction to Java method overloading and variable scope
The max method used above is only applicable to int data. But what if you want to get the maximum value of two floatin…… -
Detailed explanation of the most basic file and directory operation methods in Java programming
File operation @ h_ 403_ 2@ -
Complete JDBC connection database code and steps in java development
JDBC connection to the database • creating a program that connects to the database with JDBC includes seven steps: 1. …… -
Analysis of caching and delayed loading mechanism in Hibernate framework of Java
The difference between hibernate L1 cache and L2 cache is between application and physical data source. Its function i…… -
Share several common encryption algorithms in Java (four)
Symmetric encryption algorithm is an earlier encryption algorithm with mature technology. In the symmetric encryption ……