Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode) Java(TM) SE Runtime Environment (build 1.7.0_79-b15) Use following command to check which version of Java is currently being used by system. # alternatives -set javac /opt/jdk1.7.0_79/bin/javac # alternatives -set jar /opt/jdk1.7.0_79/bin/jar # alternatives -install /usr/bin/javac javac /opt/jdk1.7.0_79/bin/javac 2 # alternatives -install /usr/bin/jar jar /opt/jdk1.7.0_79/bin/jar 2 Now you may also required to set up javac and jar commands path using alternatives command. There are 3 programs which provide 'java'.Įnter to keep the current selection, or type selection number: 3 # alternatives -install /usr/bin/java java /opt/jdk1.7.0_79/bin/java 2 Install Java with AlternativesĪfter extracting Java archive file, we just need to set up to use newer version of Java using alternatives. For this example we are using CentOS 7.0 (64 bit) system. Use archive file as per your system configuration. Note: If Above wget command doesn’t not work for you watch this example video to download java source archive using terminal. # wget -no-cookies -no-check-certificate -header "Cookie: gpw_e24=http%3A%2F%2Foraclelicense=accept-securebackup-cookie" "" After completing download also extract archive with given commands. We recommend to download latest version of Java from Oracle official website.
Java latest archive is available on its official site. I recommend reading carefully instruction for downloading Java from Linux command line. Use following step by step instructions to install or update Java. We can also install multiple version of java easily if required. Using below steps I have installed java successfully many times without facing any issues. After that, I found a better way to install java from Sun site. JAVA 9 – Install on CentOS, Red Hat, Fedoraĭuring installation of Java using rpm files, I faced issues many times.JAVA 8 – Install on CentOS, Red Hat, Fedora.
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