$ export CLASSPATH=.:/dependency/framework.jarīelow syntax examples will add more than one jar file in classpath. Add a single jar file in classpathīelow syntax examples will add single jar file in classpath. Let’s say we have a folder named dependency where JAR files and other classes are placed. Use below given commands to set classpath for different requirements. Use -classpath argument to set classpath from command prompt/console. Use '.' (dot) to denote current directory. If you are creating CLASSPATH for the first time, you need to specify the name for Variable Name in the Windows 10. Close all remaining windows by clicking OK. Add all folders separated with separator.If the CLASSPATH environment variable does not exist, click New. In the section System Variables, find the CLASSPATH environment variable and select it. Click the Advanced system settings link.

Choose Properties from the context menu.

From the desktop, right click the Computer icon.You can find the user environment variables window by – Use the separator between different two folders, jar files or classes. To set CLASSPATH environment variable, find the location of user environment variables in your machine and add all paths where Jar files are stored. When you have set the location of jar files that are always required during the application runtime, then it’s probably the best to add them in the machine’s environment variable 'CLASSPATH'.ĭuring application runtime, application class loader will always scan the jar files and classes at specified paths in this variable. Setting CLASSPATH as Environment Variable Java Classpath separators are OS specific. The Java interpreter will look for classes in the directories in the order they appear in the classpath variable. The order in which you specify multiple classpath entries is important.Specifying either the CLASSPATH environment variable or the -cp command line switch overrides this value.” (dot), meaning that only the current directory is searched for dependencies. The default value of the classpath is “.

During runtime of any Java application, the CLASSPATH is a parameter that tells the JVM where to look for classes and packages. Learn how to set classpath in Java either as an environment variable and pass as the command-line argument.

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