CODEWITHSUNDEEP
javafileexists
SSorensen
SSorensen

Reputation: 1

java file.exists doesn't find my file

I'm using Windows7. I've written this simple java code:

package filetest;
import java.io.File;

public class FileTest {
    public static void main(String[] args) {
        File myfile = new File("C://test//test.txt");

        if (myfile.exists()) {
            System.out.println("file exists");
        } else {
            System.out.println("file doesn't exist");
        }

    }

}

The file DOES exists in C:/test/test.txt, but the answer is that file doesn't exists. Why?

EDITED: I've changed the code and it still doesn't find the file, but now it creates the file. So I can write to that directory. And the created file is named "test"

package filetest;
import java.io.File;
import java.util.*;

public class FileTest {
    public static void main(String[] args) {
        File myfile = new File("C:\\test\\test.txt");
        final Formatter newfile;
        if (myfile.exists()) {
            System.out.println("file exists");
        } else {
            System.out.println("file doesn't exist");
            try {
                newfile = new Formatter("C://test//test.txt");
                System.out.println("file has been created");
            } catch(Exception e) {
                System.out.println("Error: " + e);                
            }
        }

    }

}

Upvotes: 0

Views: 972

Answers (4)

surendran
surendran

Reputation: 476

@SSorensen In your EDITED code, you added the backslash properly

@ line 7

File myfile = new File("C:\\test\\test.txt");

but you forgot to update slashes with backslashes @ line 14

newfile = new Formatter("C://test//test.txt");

Upvotes: 0

patty
patty

Reputation: 58

I would recommend using isFile() instead of exists(). Its a better way of checking if the path points to a file rather than if a file exists or not. exists() may return true if your path points to a directory.

Upvotes: 1

Dici
Dici

Reputation: 25950

You don't need to double your slashes. You have to user wether "/" or "\\".

EDIT :

The weird thing is that I tried it out and both "/" and "\\" work fine for me. In fact, it works regardless of the number of "/" I use... for example "C:////test/////////test.txt" is okay. You have another problem, and I have no idea of what it could be.

Upvotes: 1

Sachin Janani
Sachin Janani

Reputation: 1319

In windows path separator used is '\' for these you need to escape backslash.So your code will be something like:

public class FileTest {
    public static void main(String[] args) {
        File myfile = new File("C:\\test\\test.txt");

        if (myfile.exists()) {
            System.out.println("file exists");
        } else {
            System.out.println("file doesn't exist");
        }

    }

}

Upvotes: 1

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