Under MA Java Development Environment Construction

Build a Java development environment under Mac

MAC Configuration Java Development environment: Eclipse + jdk1.8

Objective

Before you build your development environment, take a look at some concepts: JAVA,JAVASE,JAVAEE,JVM,JDK,JRE

• Java Development history

• The relationship between Javase, Javame and Java EE
  Javase (J2SE): (Java2 Platform standard Edition,java Platform Standards Edition)
  EE: (Java 2 platform,enterprise Edition,java Platform Enterprise Edition)
  Javame (J2ME): (Java 2 Platform Micro Edition,java Platform mini version)

• Jvm
  Written in the Java language good. Java source code files, compiled by the compiler, generate. class bytecode files, bytecode files and platform-independent, which is the reason for Java cross-platform, when running a Java program, the interpreter to interpret the bytecode file, and the JVM contains this interpreter, that is, Java across platform, which is implemented by the JVM.
  
  

• Jdk,jre
  JDK contains the JVM,JRE, so as long as the installation of the JDK can be Java development, just for the convenience of development, need to use some IDE development tools
  
  

1. Installing the JDK

The Mac comes with a JDK, and the console input java -version can view the installed JDK version, as shown in the 1.6.0_65

To install a different version, such as the current version of jdk1.8, proceed as follows:

• ：
  Http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

• Download the JDK for Mac OSX under Javase and tick accept license Agreement
  
  

• Once downloaded, simply double-click the installation.
  
  

• After installation, enter java -version view JDK version in terminal
  
  

2. Install Eclipse

• ：
  Http://www.eclipse.org/downloads/download.php?file=/oomph/epp/mars/R1a/eclipse-inst-mac64.tar.gz

• After download is a compressed file eclipse-java-mars-1-macosx-cocoa-x86_64.tar.gz, after decompression is a eclipse.app, directly double-click Run

• Create a new HelloWorld program
  
  

Under MA Java Development Environment Construction