title: How to pass a file name as parameter, create and then read the file
body: <p>I have a method as follows:</p>
  
  <pre><code>    public(String input_filename, String output_filename)
     {
  //some content
      }
  </code></pre>
  
  <p>how to create an  input_filename at run time and read the input_filename .I have to pass input_filename as a parameter </p>
  
  <p>Please be patient as I am new to Java</p>