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POJava getting letter of Local Disk Windows
 

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  1. POJava getting letter of Local Disk Windows
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    <pre><code>import java.io.File; import javax.swing.filechooser.FileSystemView; public class DriveLetter{ static String getDriveLetter(){ FileSystemView fsv = FileSystemView.getFileSystemView(); File[] f = File.listRoots(); String letter = null; for(int i = 0; i &lt; f.length; i++){ if((fsv.getSystemDisplayName(f[i]).contains("Disk") || fsv.getSystemDisplayName(f[i]).contains("Local")) &amp;&amp; fsv.isDrive(f[i]) &amp;&amp; !fsv.isFloppyDrive(f[i]) &amp;&amp; f[i].canRead() &amp;&amp; f[i].canWrite() &amp;&amp; f[i].getUsableSpace() &gt; 10000000){ letter = f[i].toString().charAt(0) + ":"; break; } } return letter; } } public class Main{ public static void main(String args []){ if(DriveLetter.getDriveLetter() != null){ new File(DriveLetter.getDriveLetter() + "\\aaa\\bbb").mkdirs(); } else{ JOptionPane.showMessageDialog(null, DriveLetter.getDriveLetter(), "Error",JOptionPane.ERROR_MESSAGE); } } } </code></pre> <p>I wrote a method to get local disk letter. It works fine on my laptop. However it doesn't work on my secondary computer, I get null error as if computer had no primary disk. I gave the code to my friend to test it out and it worked for him, but then I tried it on my brothers computer it did not work again.</p> <p>It seems like my code to get letter of primary disk is very unreliable. Maybe someone could give me some suggestions to make it more reliable?</p> <p>Also I was looking for an easy way to get primary disk letter on windows using java, but I couldn't find anything useful...</p> <p>Maybe someone knows an easier way to get letter of primary disk?</p>
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    1. USuser2821023
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    1. COPost the stacktrace, please.
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    2. COThere is no stacktrace. What I mean by null error is the getDriveLetter() returns null, since none of drives met if condition, however it does work on most windows computer. But I'm not sure what I need to tweak to make it work for everyone using windows.
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