learn java through projects

Data | project Object-Relational Mapping (O/R mapping) is a common requirement for many software development projects. The activities involved in the data persistence process are tedious and error-prone. If we take into account the inevitable changes in demand, we are faced with a lot of trouble: the data storage structure must be kept in sync with the source code. Plus the portability problem, things get very complicated.Hibernate can help us easily

and use the instanceof operator to judge that the first class that evaluates to TRUE is the one that the reference really points to.For example, the following example:Class person{}Class Student extends person{}Class Postgraduate extends student{}Class animal{}public class Instanceoftester {public static void Main (string[] args) {Instanceoftest (New Student ());}public static void Instanceoftest (person p) {Determine the True type of Pif (P instanceof postgraduate) {System.out.println ("P is a

Every technical expert in the JAVA/JVM field should benefit from those projects, with 2011 of them nominated for the Best Technology Product Award at the Jax Conference held in Sanjose. I chose them because they can be used extensively in a range of projects to solve real-world problems. As a developer, we have to talk about this every day, so let's take a quick

specific framework. However, the specific environment is a required course. From a newbie without any knowledge, he can directly access large Java projects and learn and practice in a targeted manner. This is the pressure and motivation that inspires me to keep learning and improving, in this regard, I believe that I am more fortunate than many people who are st

Below I will summarize some of the Java frameworks and open-source projects for you, so that you can have a certain understanding of the Java frameworks in general.Spring framework [Java open-source Jee framework]Spring is a powerful framework that solves many common problems in J2EE development. Spring provides consis

runtime dynamic proxies. AOP is actually a continuation of the GOF design pattern, the design pattern pursues the decoupling between the caller and the callee, improves the flexibility and scalability of the code, and AOP can be said to be an implementation of this goal. Provides rich support for aspect-oriented programming in spring, allowing for cohesive development through separation of application business logic and system-level services such as audit (auditing) and transaction (transactio

Ava's open-source ecosystem is powerful and healthy. This is one of the main reasons why we (oreilly) created oscon Java (Open Source Convention Java. Over the past 10 years, some projects have been widely accepted and have dominated the Java software development world, and some have even affected users' daily lives. 1

Original address: http://tech.it168.com/j/2007-11-09/200711091344781.shtmlPlease do not reprint this article! Ant is a cross-platform component tool under the Apache Foundation that enables the automatic building and deployment of projects. In this article, it's important to familiarize the reader with how to apply ant to a Java project, allowing it to simplify build and deployment operations. A. Installat

Original address: http://tech.it168.com/j/2007-11-09/200711091344781.shtmlAnt is a cross-platform component tool under the Apache Foundation that enables the automatic building and deployment of projects. In this article, it's important to familiarize the reader with how to apply ant to a Java project, allowing it to simplify build and deployment operations.A. Installation and configuration: http://ant.apa

Http://www.blogjava.net/amigoxie/archive/2007/11/09/159413.htmlOriginal address: http://tech.it168.com/j/2007-11-09/200711091344781.shtmlPlease do not reprint this article!Ant is a cross-platform component tool under the Apache Foundation that enables the automatic building and deployment of projects. In this article, it's important to familiarize the reader with how to apply ant to a Java project, allowing

J2SE Java2 Standard Edition v5 JAI Java Advanced Imaging-Network-enabled, scalable, platform-independent image processing Jalopy Jalopy Source Formatter-Formats Java source code according to widely retriable rules Jasper Jasper-Tomcat JSP enginehttp: // andyluo.blogjava.net JasperReports JasperReports-Free Jav