CENTOS7 Installing Oracle JDK

• See if Linux has its own JDK, if openjdk, uninstall

1 java-version

1 rpm-qa | grep -e '^open[jre|jdk]|j[re|dk]'

• Uninstalling OPENJDK

1 su Root 2 3 Yum -y remove Java java-1.7. 0-openjdk

• Download Oracle JDK

1 wget " Cookie:oraclelicense=accept-securebackup-cookie; " " http://download.oracle.com/otn-pub/java/jdk/8u77-b03/jdk-8u77-linux-x64.tar.gz "

• Unzip the JDK

1 tar -xzvf jdk-8u77-linux-x64. tar. gz

• Move JDK to/usr/local, establish soft connection

MV Jdk1. 8.0_77//usr/localln-s/usr/local/jdk1.  8.0_77//usr/local/jdk   

• Edit/etc/profile

1 vim/etc/profile

• Join the JDK Configuration

1 java_home=/usr/local/jdk2 path=${path}:${java_home}/bin3 Export Java_home PATH

• Source

1 source/etc/profile

• To see if the JDK was installed successfully

1 java-version

CENTOS7 Installing Oracle JDK