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- UNIX
  % java testSig data
- DOS shell (Windows 95/NT)
  C:\>java testSig dataNote: For the UNIX and Windows 95/NT JDK, the first 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.
- MacOS
 - Drag the
 testSig.classfile icon onto the Java Runner icon. When prompted for command-line arguments, specify thedatafile name and click the OK button.
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