#SET JAVA 8 MAC HOW TO#
In this short article, We have seen how to read environment variable value programmatically in java. The above program can be iterated using Java 8 API forEach() method and will produce the same output as the above program.Įnv.forEach((key, value) -> (key + " : " + value)) JAVA_MAIN_CLASS_24103 : .Īpple_PubSub_Socket_Render : /private/tmp/7YJcjjT4h/Render SSH_AUTH_SOCK : /private/tmp/0QVWzoZa9/Listeners SQLITE_EXEMPT_PATH_FROM_VNODE_GUARDS : /Users/javaprogramto/Library/WebKit/Databases getEnv() method returns a Map and the iterating map will return key/value pairs.
All are retrieved with System.getEnv() method. PATH value : /usr/bin:/bin:/usr/sbin:/sbinĪlong with the getting value for a specific env var, System class has another method to fetch all keys and values in the OS. String JavaHomeValue = System.getenv("JAVA_HOME") String pathValue = System.getenv("PATH") String tempDir = System.getenv("TMPDIR") String shellValue = System.getenv("SHELL")
* java Program to read system environment variables in Java Just need to call the getenv() method and pass the env variable name to it.
#SET JAVA 8 MAC MAC OS#
In the following program, we are going to retrieve PATH, JAVA_HOME, Temporary directory and SHELL from mac os env variables. Java Program to read PATH, JAVA_HOME and TEMP Environment Variables
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