Files

[Maya]

Hello,

I am trying to create a file and then delete it. This code does create file a.txt, but won't delete it pls help me. And I would also like to know, if a file is deleted through a program, does it go to recycle bin??

import java.io.FileWriter;
import java.io.File;
import java.io.Writer;
import java.io.FileNotFoundException;
import java.io.IOException;

public class fileop {

	public static void main(String[] args) {
	Writer writer = null;
		try {
		String word = "hello";
		File f1 = new File("a.txt");
		writer = new BufferedWriter(new FileWriter(f1));
		writer.write(word);
		f1.delete();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
		try {
			if (writer != null) {
				writer.close();
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}

}

Regards
Maya

[ozzyman]

try this to confirm what you are saying:

boolean fileDeleted;
fileDeleted = f1.delete();
System.out.println("File deleted? " + fileDeleted);

If the delete is successful, fileDeleted will = true; or false if unsuccessful.

[cultclassic]

Files deleted through Java does not go to the Recycle Bin. Recycle Bin / Un-delete etc are OS specific; Java is cross-platform. You have to implement a native OS call to implement those.

[milovan]

Yes, and that means jni, so good luck

[cultclassic]

Yes, and that means jni, so good luck

Shhh! Don't say those scary things in a Newbie thread! :p

[milovan]

My aplogies, I feel guilty so this is an example, I didn't try it but..
Scratch Where It's Itching : Weblog

[ozzyman]

Too complicated. Just make your own "recycle bin" e.g. copy items to a specified folder "dump" before it is deleted.

[milovan]

Too complicated. Just make your own "recycle bin" e.g. copy items to a specified folder "dump" before it is deleted.

One cute idea

[ozzyman]

One cute idea

I take it as a complement :)

[milovan]

Actually it is...

[ozzyman]

Lol, thanks.

[cultclassic]

JNA is a little less painful than JNI. You don't have to code in another language.

Java Native Access (JNA): Pure Java Access to Native Libraries — Java.net

[DarrylBurke]

Also check out the API for File#createTempFile(...) and File#deleteOnExit()

db