classpath and -cp options specify locations forĪll classes, including bootstrap classes. To specify locations for bootstrap classes. Options specify a search path for user classes, and cannot be used Techniques that are incompatible with the base class loader. The oldjava launcher uses the bootstrap class loader forĪll classes, while the java launcher uses the bootstrapĬlass loader only for bootstrap classes.Extension packages can still be used as class and The oldjava launcher does not support the extension.These are the differences between java and oldjava Option will not work with the Java 2 Runtime Environment. Not included in the Java 2 Runtime Environment. The Java 2 Classic VM is included only in the Java 2 SDK. It mayīe invoked by using the -classic command-line option, as Implementation as in version 1.2 of the Java 2 SDK. The Java 2 Classic VM is essentially the same virtual machine Java will always launch an application to run on the Options are used to invoke the Classic VM instead (see below), Java HotSpot technology gives it superior The Java HotSpot Client VM is the default virtual machine. The Java 2 SDK and Java 2 Runtime Environment contain two implementations Launcher will, however, display a dialog box with error information You don't want a command prompt window to appear. Javaw there is no associated console window. The javaw command is identical to java, except that with Non-option arguments after the class name or JAR file name are passed Installed extensions, and the user class path. Used, in three sets of locations: the bootstrap class path, the The Java runtime searches for the startup class, and other classes Is the name of a JAR archive containing class and resource filesįor the application, with the startup class indicated by the If the -jar option is specified, the first non-option argument A fully-qualified class name should be used. By default, the first non-option argument is the name Return any value, and it must accept a String array as a The method must be declared public and static, it must not Method declaration must look like the following: Specified class, and invoking that class's main method. Starting a Java runtime environment, loading a The java tool launches a Java application. Oldjavaw class įile.jar Name of the jar file to be invoked.Īrgument Argument passed to the main function. Java - the Java application launcher java - the Java application launcher
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