learn java through projects

-tomcat-7.0.59.tar.gz # mv apache-tomcat-7.0.59/usr/java/tomcat7# cd/usr/java/ls-ltotal 139060drwxr- Xr-x 8 UUCP 143 4096 Dec 09:04 jdk7-rw-r--r--1 root root 142245547 Feb 9 21:17 jdk-7u75-linux-x64.tar.gzdr Wxr-xr-x 9 root root 4096 Feb 9 22:02 tomcat7# vi/etc/profiletomcat_home= '/usr/java/tomcat7 ' path= $PATH: $ Tomcat_home/bin export tomcat_home

generated. class and other resource files* Export all output folders for checked projects indicates that all folders for the selected item are exported* Export Java source file and Resouces indicates that the exported jar package will contain your source code *.java, if you do not want to leak the source, then do not choose this* Export refactorings for checked

Compiling Java projects is generally straightforward with the IDE or with tools such as Ant and Maven, and few people use pure shells to compile Java projects. Just meet such a should, use this blog post to make a record.Case: I wrote a Java project with Eclipse and then com

This article spits Groove!If we create a two Java project. One called Statsreader. Download data from the Web to your local database. One called Statsviewer. Take the data out of the database and present it to the user. All two of these projects will be mysql-connector-java-5.0.8-bin.jar with the same external class library.Eclipse is able to create a working set

Java's open source ecosystem is strong and healthy, and this is one of the main reasons why we (oreilly) Create Oscon Java (open source Conventionjava). In the past 10 years, some projects have been widely accepted, and have ruled the Java software development world, some even affect the user's daily life.1. JUnitMr. Kent Beck's unit tests on Smalltalk were broug

Java's open source ecosystem is strong and healthy, and this is one of the main reasons why we (oreilly) Create Oscon Java (open source Conventionjava). In the past 10 years, some projects have been widely accepted, and have ruled the Java software development world, some even affect the user's daily life.1. JUnitMr. Kent Beck's unit tests on Smalltalk were broug

How to handle the "No projects are found to import" error when Eclipse imports a Java project, eclipseprojects When using Eclipse to import a Java project, the "No projects are found to import" error often occurs (especially when importing a project downloaded from the internet). This is because there is No such proje

Object-oriented programming with the Java language has become ever more pervasive. It has led to some change in software development, but recent research has shown that half of software development projects lag behind, while one-third of projects are beyond budget. The problem is not the technology, but the method used to develop the software. The so-called "ligh

Why should we talk about exception handling in the Java EE project? Perhaps many Java beginners want to say: "Exception handling is not try....catch...finally?" Who's going to do this? ”。 The author in the beginner Java also think so. How do I define an exception class in a multi-tiered Java project? How do I handle ex

probably want to run package: MVN Package After the package command runs, it compiles your Java code, runs all the tests, and finally packs the code into a jar file to To end in the target directory. The name of the jar file here is based on engineering For example, the smallest pom.xml given before it generates a jar file will be named Gs-maven-0.1.0.jar. Note: If you ' ve changed the value of Would be a WAR file within the target directory

Java's Open-Source ecosystem is powerful and healthy, which 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.

compilingTargetcompatibility: Generate Java version of classFour. Building a Web Project1) need to add Web plugin: Apply plugin: ' War '2) War task is primarily used to package a Web application as a war3) Consistent with MAVEN specification: Web related resources are located under Src/main/webappExamples of Use:War { // adds a file-setto the root of the archive // adds a file-set to The Web-inf dir. // adds a file-set to the Web-inf/lib d

slightly different, I am using the Redhat Linux (RHEL 6) system, download the corresponding. rpm file, like installing other software installation can be:RPM-IVH jdk_8u25.rpmUse other systems, such as Ubuntu, to download. tar.gz Compression Package for installation, many online information, not to repeat. Generate Jar File Install the JDK so we can copy the code from Windows to Linux. Here we do not directly copy the. Java code

First, install the JDK under LinuxUninstall firstJava–version (view Java version information)Rpm-qa | grep Java (see if there is a Java presence)RPM-E--nodeps java-1.7.0-openjdk-1.7.0.45-2.4.3.3.el6.x86_64 (uninstall the corresponding JDK)To start the installation:Mkdir/usr/local/src/javauploading a JDK tar packageTAR-

(), '; ');or string interfacesstr= joiner.on (";"). Join (Interfaces.iterator ());Sometimes we write like this:Person person1= Thenew person ("Jack"); Person Person2=new person ("Jack", +); Person Person2=new person ("Jack", +); // will go to this list collection: Listnew arraylist();p ersonlist.add (Person1); Personlist.add (Person2);p ersonlist.add (Person3);This can be done in guava:listThere are two ways to compare object sizes:1. The entity class implements the Conparable interface; 2. Imp

-dgroupid=com.yiibai-dartifactid=numbergenerat Or-darchetypeartifactid=maven- Archetype-quickstart-dinteractivemode=false [INFO] scanning for projects ... [INFO] [INFO]------------------------------------------------------------------------[INFO] Building Maven Stub Project ( No POM) 1 [INFO]------------------------------------------------------------------------[INFO] [INFO] >>> Maven-archetype-plugin:2.4:generate (DEFAULT-CLI) > generate-sources @ s

Reahat5.5 install jdk and tomcat and deploy Java projects. reahat5.5jdk1. Download and install Redhat5.5 64-bit Enterprise Edition on the jdk virtual machine, Take jdk-7u75-linux-x64.tar.gz as an example. Download jdk of this version from the Internet, or click here to download (access password 375a) Upload the file to linux as a root user and grant it the execution permission. # mkdir /usr/

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. Installatio

1]Some people on the internet say there are two possible reasons for this problem:1) If you are using Tomcat 7, you need to modify the URL address of the deployment in Pom.xml.Switch2) Tomcat User Rights assignment problem, need to have both Manager-gui and Manager-script permissions, such as forget to assign Manager-script permissions.The correct conf/tomcat-users.xml configuration should be:But my problem is not the above two, my problem is the automatic deployment command is wrong, should be

this blog is original: Integrated still Silicon Valley (http://www.atguigu.com) System tutorial (deep thank) and network of existing resources (blogs, documents, books, etc.), the source of resources I will markThe purpose of this blog: ① summary of their own learning process, equivalent to study notes ② to share their own experience to everyone, learn from each other, communication, not commercialcontent inevitably appear problems, welcome to correct