how to open a file with name in a string in java
<pre><code> FileInputStream fis = new FileInputStream("./abc.txt");
</code></pre>

<p>I want to replace the quoted value by a string</p>

<p>I also want to fill the string with different filenames in a switch statement so that I can open different files and perform repeated operations on the files data.</p>

<p>how do I go about this?</p>
