![]() ![]() The valid values of N change for each release, with new values added and old values removed. Optional: Arguments following mainclass, source-file, -jar jarfile, and -m or -module module/ mainclass are passed as arguments to the main class. See Using Source-File Mode to Launch Single-File Source-Code Programs Specifies the source file that contains the main class when using source-file mode. Only used to launch a single source-file program. In other words, mainclass can be used when it is not specified by the module, or to override the value when it is specified. If you’re using JAR files, then see jar.Įxecutes the main class in a module specified by mainclass if it is given, or, if it is not given, the value in the module. ![]() When you use -jar, the specified JAR file is the source of all user classes, and other class path settings are ignored. The jarfile argument is the name of a JAR file with a manifest that contains a line in the form Main-Class: classname that defines the class with the public static void main(String args) method that serves as your application's starting point. Command-line entries following classname are the arguments for the main method.Įxecutes a program encapsulated in a JAR file. Specifies the name of the class to be launched. ![]() See Overview of Java Options for a description of available options. Optional: Specifies command-line options separated by spaces. To launch a single source-file program: java source-file To launch the main class in a module: java -m module To launch the main class in a JAR file: java -jar jarfile The javaw launcher will, however, display a dialog box with error information if a launch fails. Use javaw when you don’t want a command prompt window to appear. Windows: The javaw command is identical to java, except that with javaw there’s no associated console window. ![]()
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