ubuntu 14.04 安装 jdk-8u5-linux

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download jdk-8u5-linux-x64.tar.gz download

cp /home/username/Downloads/jdk-8u5-linux-x64.tar.gz /usr/lib/jvm/

cd /usr/lib/jvm

tar xzf jdk-8u5-linux-x64.tar.gz ./

rm jdk-8u5-linux-x64.tar.gz

update-alternatives --install /usr/bin/java　java　/usr/lib/jvm/jdk1.8.0_05/bin/java 18

update-alternatives --install /usr/bin/javac　javac　/usr/lib/jvm/jdk1.8.0_05/bin/javac 18

update-alternatives --config java

updata-alternatives --config javac

apt-get install gcc-4.4 gcc-4.4-multilib g++-4.4-multilib g++-4.4

update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.4 44

update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.4 44

update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 48

update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 48

update-alternatives --config gcc

updata-alternatives --config g++

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