Step 1: Here I downloaded jdk-7u79-linux-x64.tar.gz, the download address is:
http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
Step 2: Create a new jdk installation directory, I created a new Java directory under /usr/local/, command: mkdir /usr/local/java
Step 3: Upload the downloaded tar.gz file through the SSH tool Go to the /usr/local/java directory Step
4 tar.gz file
tar xvf jdk-7u79-linux-x64.tar.gz
Step 5: cd /etc directory, modify the profile file, and in the configuration file At the end add
export JAVA_HOME=/usr/local/java/jdk1.7.0_79
export JRE_HOME=/usr/local/java/jdk1.7.0_79/jre
export PATH=$PATH:/usr/local/java/jdk1.7.0_79 /bin
export CLASSPATH=./:/usr/local/java/jdk1.7.0_79/lib:/usr/local/java/jdk1.7.0_79/jre/lib
Step 6: reboot the system Step
7 : java javac java -version to see if it is configured properly.
Install jdk under CentOS7 and configure environment variables
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