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javajava.util.scannerreadfile

Scanner class java file not found


Scanner Class couldnt find the file I use NetBeansIDE, and the test.txt is in the folder path: D:\netbeans project works\ReadFile\src\readfile\test.txt

in the same folder the readfile.java exsist. the code is as below. It generates file not found.

package readfile;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Scanner;


public class ReadFile {

    public static void main(String[] args) throws IOException , FileNotFoundException 
    {  
        Scanner scanner = new Scanner(new File("test.txt"));  

        while (scanner.hasNextLine())  
            System.out.println(scanner.nextLine());  
    }  
}

output:-

run:
Exception in thread "main" java.io.FileNotFoundException: test.txt (The system cannot find the file specified)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:106)
    at java.util.Scanner.<init>(Scanner.java:636)
    at readfile.ReadFile.main(ReadFile.java:14)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)

Solution

  • Add the following before creating Scanner class:

    System.out.println(new File("test.txt").getAbsolutePath());
    

    It will show you where JVM expects to find the file and whether it is the folder you expect as well.

    Also check file permissions. But most likely it is a problem with default JVM directory.