Type in the following code in the created file. java file with the help of any text editor. The installed Java service can be tested from the command line itself by following the below steps.Ĭreate a. # export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.8_1.x86_64/jre/bin/javaĮxecute the below command to confirm that the Java path has been set correctly. The value of this variable can be set to the path of the exact java executable to be used.įor setting the environment variable, the below command can be executed (based on the above results). Select the number corresponding to the java executable that needs to be made use of as default.Īnother option to select which java executable is to be made use of, is to make use of environment variables such as JAVA_HOME. The below steps can be made use of for this purpose.Įxecute the below command to list out the programs that provide java command in the server. This requires certain environment variables to be set in the server. While configuring Java, it is important that the correct installation of Java is set to be used by applications hosted in the server. To verify Java is installed, input the following command. Use the following command to install Java. Run update before proceeding with the installation. This guide outlines the general steps to install the OpenJDK version of Java in different Linux distributions. We will use openjdk-11+28-amd64 here Create a shell script to udpate alternatives automatically I call it jdk-11. how to do it Install jdk-11 First install jdk-11 inside a directory in /usr/lib/jvm. One of the biggest advantages of programs written in Java is that they are easily portable across different platforms/architectures. sudo update-alternatives /usr/bin/java java /opt/jdk-11/bin/java 1102 and the same for all the others executables of the jdk. Java is one of the most popular programming languages that is used in software as well as for building different cross-platform applications.
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