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POHow to change a file extension of a file location
 

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  1. POHow to change a file extension of a file location
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    <p>i have an application that a user uploads a file to,</p> <p>but what i want is to detect the file extension of the uploaded file and if a doc file do something else do nothing</p> <p>anyone have any ideas?</p> <p>is there a way to change the file extension for example is a file was D:/test.doc to change to D:/test.pdf </p> <p>i know this will not convert the file format, that will be done later</p> <p>the file location changes every time etc so i just need a way to take the location, and change the file extension</p> <p>code i have currently </p> <pre><code>File file = new File("oldname"); File file2 = new File("newname"); // Rename file (or directory) boolean success = file.renameTo(file2); if (!success) { // File was not successfully renamed } </code></pre> <p>but this does not do it :( The problem with this code is i must give the new file name, and i can not as it should be exactly the same as the old file name just with different extensions</p> <p>EDIT 2 </p> <p>hopefully this will clear it up as the last question was a little confusing</p> <p>basically, i have a program that converts an uploaded doc file to a pdf, but the location of the uploaded doc changes each time, as it creates a folder for each user </p> <p>this is defined in the variable <code>String location</code></p> <p>what i want to do is take this variable <code>location</code> as this will end with a <code>.doc</code> and i want to change the <code>location</code> from <code>.doc</code> to <code>.pdf</code></p> <p>I have managed to find out the name of the file, without hte extension by using :</p> <pre><code> String path = location; File f = new File(path); System.out.println(f.getName()); String fName = f.getName(); System.out.println(fName.substring(0, fName.lastIndexOf('.'))); </code></pre> <p>but how can i find out the path before the name of file </p> <p>EDIT for the last time i have found a solution</p> <pre><code> System.out.println(path2.substring(0, path2.lastIndexOf('.'))); newLocation = (path2.substring(0, path2.lastIndexOf('.')))+".pdf"; System.out.println(newLocation); </code></pre>
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    1. COfileName.endsWith(".doc")?
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    2. COOh ok, really didn't think it was that easy, Thanks !
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