Handling the Accumulated “State”

• The page returned by the VendingMachine servlet contains a final form generated by:

out.println(“<form action=” + viewURL + “>”) ;

out.println(“View current selections:

<input type=submit>”) ;

printHidden(out, selections) ;

out.println(“</form>”) ;

Here viewURL is a reference to a second servlet, which generates a page containing the contents of the hidden fields.

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