ubuntu下安装java跟eclipse

ubuntu下安装java和eclipse

java安装

1 下载jdk

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

2 切换到root用户

sudosu

3 进入目录

cd/usr/local/lib

4 解压下载的压缩文件

tar-zxvf /home/linger/toInstall/jdk-7u55-linux-x64.tar.gz

5 配置环境变量

打开文件gedit/etc/profile

在/etc/profile文件末尾加上如下的三行代码:

exportJAVA_HOME=/usr/local/lib/jdk1.7.0_55

exportCLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

exportPATH=$PATH:$JAVA_HOME/bin

6 chown root:root -R /usr/local/lib/jdk1.7.0_55

7 chmod 755 -R /usr/local/lib/jdk1.7.0_55

8 source /etc/profile

9 java -version

eclipse

1 下载eclipse

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

2 进入目录

cd/usr/local

3 解压到当前目录

tar-zxvf/home/linger/toInstall/eclipse-standard-kepler-SR2-linux-gtk-x86_64.tar.gz

4 如果java环境安装好就可以使用了

具体参考：http://blog.csdn.net/gavin_dinggengjia/article/details/7364375