import java.io.*;
import java.util.*;
import java.util.jar.*;

public class JarView {
   /** 
    * main()
    */ 
   public static void main(String[] args) throws IOException {
      // Open the jar file, using the first command line argument as the file
      // name.

      JarFile jar = new JarFile(args[0]);

      // Process the jar file. Close it when the block is exited.

      try {
         // Loop through the jar entries and print the name of each one.

         for (Enumeration list = jar.entries(); list.hasMoreElements(); ) {
            JarEntry entry = (JarEntry) list.nextElement();
            System.out.println(entry.getName());
         }
      }
      finally {
         jar.close();
      }
   }
}