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JSP handles form data parsing automatically using the following methods depending on the situation −

  • getParameter() − You call request.getParameter() method to get the value of a form parameter.

  • getParameterValues() − Call this method if the parameter appears more than once and returns multiple values, for example checkbox.

  • getParameterNames() − Call this method if you want a complete list of all parameters in the current request.

  • getInputStream() − Call this method to read binary data stream coming from the client.

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Java Interview Questions and Answers 2018