linux jdk安装配置

cd /usr/local;
mkdir java;
cd java;
 wget http://.../jdk1.8.0_51.zip;
 unzip jdk1.8.0_51.zip;
 rm -rf jdk1.8.0_51.zip;

vim  /etc/profile

export JAVA_HOME=/usr/local/java/jdk1.8.0_51
export CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar
export PATH=$JAVA_HOME/bin:$PATH

source /etc/profile