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I support rrz's proposal.<br />
<br />
Remark:<br />
&gt;&gt;&nbsp;3) canWrite() is FALSE for files that do not exist<br />
Seems correct to me. (You cannot write to an unexisting file)<br />
<br />
Documentation about canWrite():<br />

<blockquote>
true if and only if the file system actually contains a file denoted by this abstract pathname and the application is allowed to write to the file; false otherwise.
</blockquote>
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I support rrz's proposal.

Remark:
>> 3) canWrite() is FALSE for files that do not exist
Seems correct to me. (You cannot write to an unexisting file)

Documentation about canWrite():


> true if and only if the file system actually contains a file denoted by this abstract pathname and the application is allowed to write to the file; false otherwise.

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<div class="content wysiwyg-content">
Hi Experts,<br />
<br />
for checking file attributes read/write/execute, I currently use <br />
java.io.File.canRead()<br />
java.io.File.canWrite()<br />
java.io.File.canExecute()<br />
<br />
In some cases, these functions do NOT return expected results on Windows:<br />
<br />
1) canWrite() is TRUE for files on a CD/DVD drive<br />
2) canWrite() is TRUE for files that i cannot access due to missing privileges<br />
3) canWrite() is FALSE for files that do not exist<br />
...<br />
<br />
Is a better API/library available to solve all this, or will I have to implement native OS-specific code for this issue?<br />
<br />
I already tried the Apache VFS library, which does not return expected results either.
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Hi Experts,

for checking file attributes read/write/execute, I currently use 
java.io.File.canRead()
java.io.File.canWrite()
java.io.File.canExecute()

In some cases, these functions do NOT return expected results on Windows:

1) canWrite() is TRUE for files on a CD/DVD drive
2) canWrite() is TRUE for files that i cannot access due to missing privileges
3) canWrite() is FALSE for files that do not exist
...

Is a better API/library available to solve all this, or will I have to implement native OS-specific code for this issue?

I already tried the Apache VFS library, which does not return expected results either.

Java File properties canRead, canWrite, canExecute

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.