Let's see how to set CLASSPATH of MySQL database: There are two ways to ways to set CLASSPATH: through Command Prompt or by setting Environment Variable. The classes of the Java platform are stored in rt.jar. The classes can be stored in directories or archives files. The third-party applications (MySQL and Oracle) that use the JVM can modify the CLASSPATH environment variable to include the libraries they use. If you want to set multiple classpaths, then you need to separate each CLASSPATH by a semicolon ( ). If CLASSPATH finds a class file which is present in the current directory, then it will load the class and use it, irrespective of the same name class presents in another directory which is also included in the CLASSPATH. Put a dot (.) in the new setting if you want to include the current directory in the search path. The default value of CLASSPATH overrides when you set the CLASSPATH variable or using the -classpath command (for short -cp). It means the only current directory searched.
The default value of CLASSPATH is a dot (.).
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The following points describe what should be the end of the CLASSPATH. The CLASSPATH has a directory name or file name at the end. The CLASSPATH depends on what you are setting the CLASSPATH.