JDK Alpha and Beta (1995): Sun Microsystem announced Java in September 23, 1995.Oracle JDK requires a commercial license from Oracle and businesses (since 2019) need to purchase a commercial license in order to receive software updates. OpenJDK is completely open source with a GNU General Public License. The main difference between OpenJdk and OracleJDK is licensing. OracleJDK: This article is based on the 'OracleJDK' ) (due to legacy), which is free for personal and development use but no longer free for commercial use.Popular OpenJDK builds includes Azul Zulu, Red Hat OpenJDK (IcedTea), Amazon Corretto, Eclipse Adoptium's Temurin, SapMachine, Microsoft OpenJDK, and more. It does not include web-browser plugin and Web Start. OpenJDK includes the virtual machine (HotSpot), the Java Class Library, and the Java Compiler. OpenJDK: Currently, the 'OpenJDK' ) developed by Oracle, Java community, Red Hat, Azul Systems, IBM, Microsoft, Amazon, Apple, SAP, provides a free and open-source Java Platform Standard Edition (or Java SE or JDK) official reference implementation.The Java Development Kit (JDK), officially named 'Java Platform Standard Edition' or 'Java SE', is needed for writing and running Java programs. To set them permanently permanantly add them to. To do so, we can run, $ JAVA_HOME=/usr/java/jdk1.7.0_05īut these variables will saved for current session only & will need to configured after every reboot. So we need to set these variables as environment variables. Java variables, mainly JAVA_HOME & JRE_HOME, are used by many java applications to determine which java executable to use.

Note :- After installation of java, we check the version by running $ java –version ( Recommended read: RPM commands with example) & install it using rpm command, as we did above, $ rpm –ivh jdk-8u112-linux-圆4.rpm Run the following to obtain the package, $ wget -no-cookies -no-check-certificate -header 'Cookie: gpw_e24=http%3A%2F%2Foraclelicense=accept-securebackup-cookie' For installing java 8, we need to get the rpm package.

Install java 8