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# Platform-Specific Details: Interpreting a Java Source File Using the JDK

UNIX:

>     java HelloWorldApp

DOS shell (Windows 95/NT):

>     java HelloWorldApp

Note: For the UNIX and Windows 95/NT JDK, the argument to the Java interpreter is the name of the class to run, not the name of a file. Be sure to capitalize the class name exactly as shown above.

Mac OS:

> Drag the `HelloWorldApp.java` file icon onto the Java Runner icon. When prompted for command-line arguments, simply press Return or click the OK button.

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