How to install Java 7/jdk1.7 in Centos7/RHEL7

Step 1: Download java from oracle official site:

Download “jdk-7u79-linux-x64.rpm” from here and save the package to /opt directory or change the directory where you downloaded the package:

Step 2: Install java by enter below command:

[root@linuxcnf ~]# cd /opt/ [root@linuxcnf opt]# ls jdk-7u79-linux-x64.rpm [root@linuxcnf opt]# rpm -ivh jdk-7u79-linux-x64.rpm Preparing...                          ################################# [100%] Updating / installing...    1:jdk-2000:1.7.0_79-fcs            ################################# [100%] Unpacking JAR files...         rt.jar...         jsse.jar...         charsets.jar...         tools.jar...         localedata.jar...         jfxrt.jar...

Step 3: Set Environment Variables:

[root@linuxcnf ~]# vi /etc/profile # add following lines into the end of the file export JAVA_HOME=/usr/java/jdk1.7.0_79 export PATH=/usr/java/ jdk1.7.0_79/bin:$PATH :wq [root@linuxcnf ~]#source /etc/profile

Step 4: Verify Installation

[root@linuxcnf ~]# java –version java version "1.7.0_79" Java(TM) SE Runtime Environment (build 1.7.0_79-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)

[root@linuxcnf ~]# echo $JAVA_HOME /usr/java/jdk1.7.0_79 [root@linuxcnf ~]# echo $PATH /usr/java/jdk1.7.0_79bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin: JAVA_HOME/bin:/usr/java/ jdk1.7.0_79/bin:/usr/java/ jdk1.7.0_79/bin:/usr/java/ jdk1.7.0_79/bin

Java 7 installation is done!!!