Linux安装jdk

1.下载合适的安装包(.tar.gz)

2.sudo mkdir /usr/local/java 在usr/local下创建java文件夹

3.sudo cp ~/home/Downloads/jdk-8u31-linux-x64.tar.gz /usr/local/java 复制一份java安装包到java路径下

4.sudo tar -zxvf jdk-8u31-linux-x64.tar.gz 解压安装包

5.编辑 home 下的 .bashrc 文件(修改环境变量)
在末尾添加

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export JAVA_HOME=/usr/local/java/jdk1.8.0_31/
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

6.source .bashrc 使更改立即生效

# linux

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