![]() ![]() …and you’ve got a quick shortcut to switching between different versions. alias j9="export JAVA_HOME=`/usr/libexec/java_home -v 9` java -version"Īlias j8="export JAVA_HOME=`/usr/libexec/java_home -v 1.8` java -version"Īlias j7="export JAVA_HOME=`/usr/libexec/java_home -v 1.7` java -version" ![]() profile or similar approach, you can eval java_home to add the current version to your path, but a neat trick discussed in one of the answers here (thanks to this SO user for this tip) uses the -v option to allow you to switch versions. The next logical question from here would be, "How do I switch versions?" If you set your $PATH in a. InetAddress.getLocalHost () returns the instance of InetAdddress. The class provides methods to get the IP of any host name. Java InetAddress class represents an IP address. ![]() If you have multiple versions installed, adding -V will list all the versions and where they’re installed: $ /usr/libexec/java_home -Vĩ, x86_64: "Java SE 9" /Library/Java/JavaVirtualMachines/jdk-9.jdk/Contents/Homeġ.8.0_101, x86_64: "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_101.jdk/Contents/Home A media access control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment. I have Java 9 currently installed and it tells me: /Library/Java/JavaVirtualMachines/jdk-9.jdk/Contents/Home which tells you which Java version you’re currently using and where it’s installed. Click on the 'Verify Java version' button to check which version of Java your computer currently has installed and whether or not you need to update it. The Java JDK installed on MacOS has some interesting platform specific utilities, like. Go to Javas 'Verify Java Version' web page. ![]()
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June 2023
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