Build a Java development environment under Mac

One installation JDK

Download the dedicated jdk1.7 under Mac:

http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

After installation, open a terminal input, java-version, confirm the JDK version number jdk1.7

Java- version " 1.7.0_79 "  1.7. 0_79-24.79-b02, Mixed mode)

Two install Eclipse

Download the dedicated Eclipse for EE version under Mac:

http://www.eclipse.org/downloads/

To view the JRE used in eclipse:

1) Open Eclipse, Preferences, java->installed JREs, see the list of JRE on the right, if the jdk1.7 is already installed, the default location is the following address:

/library/java/javavirtualmachines/jdk1. 7. 0_79.jdk/contents/home

Otherwise, click Add, select Standard VM, point to the location of the JDK7 in the path, then you can.

2) then click Java-Compiler, set the compilation level to 1.7, you can enjoy the language features of JDK1.7.

Three configuration Java_home environment variables

1 Understanding the configuration file under Mac

/etc/profile   globally shared configuration, which reads this file /etc/BASHRC    (typically add system-level environment variables in this file) global (public) configuration, bash When the shell executes, the file is read in any way. ~/.bash_profile  (typically add user-level environment variables to this file)

Note: In a Linux system, files with a file name prefix of. File names are hidden files and are viewed using the ls-a command.

2. Configuring the Environment

First open the configuration file, where the global profile/etc/profile is used,

Vi/etc/profile

Write the following into the configuration file,

Java_home=/library/java/javavirtualmachines/jdk1. 7.0_79.jdk/contents/home
paht= $JAVA _home/bin: $PAHT

Export Java_home
Export PATH

and then save. Then restart or use the following command to make the configuration of the environment variable work.

Source/etc/profile

Build a Java development environment under Mac