Determine if a file is executable on the OS

[Philipp]

Hello
Is there a way in java to determine if a file is executable on the OS?
I.e. if it is a File that I can call Runtime.exec(file) on?

Thanks Phil

 

[Andrew Thompson]

Philipp wrote:
...

Is there a way in java to determine if a file is executable on the OS?
I.e. if it is a File that I can call Runtime.exec(file) on?

Well.. you can always 'try' it. What does this 13 lines
of code tell you?

<sscce>
import java.io.*;

class LaunchAsCommand {

public static void main(String[] args) throws Exception {
File f = new File("LaunchAsCommand.java");
try {
Runtime.getRuntime().exec(f.getCanonicalPath());
} catch(IOException e) {
System.err.println( e.getMessage() );
}
}
}
</sscce>

 

[Philipp]

Philipp wrote:
..

Is there a way in java to determine if a file is executable on the OS?
I.e. if it is a File that I can call Runtime.exec(file) on?

Well.. you can always 'try' it. What does this 13 lines
of code tell you?

<sscce>
import java.io.*;

class LaunchAsCommand {

public static void main(String[] args) throws Exception {
File f = new File("LaunchAsCommand.java");
try {
Runtime.getRuntime().exec(f.getCanonicalPath());
} catch(IOException e) {
System.err.println( e.getMessage() );
}
}
}
</sscce>

OK thanks. Juste wanted to know if I missed some part of the API.

Best regards
Phil