引发IOException后找不到文件

当我尝试从文件中读取时,会出现以下异常:

ERROR:
Exception in thread "main" java.io.FileNotFoundException: newfile.txt (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.util.Scanner.<init>(Scanner.java:611)
    at Postal.main(Postal.java:19)

import java.util.Scanner;
import java.io.*;

public class Postal   { 

    public static void main(String[] args) throws Exception   {
        /*** Local Variables ***/
        String line;
        Scanner filescan;
        File file = new File("newfile.txt");
        filescan = new Scanner(file);
        userInfo book = new userInfo();

        /*** Loop through newfile.txt ***/
        while (filescan.hasNext())   {
          line = filescan.nextLine();
          book.addNew(line);
        }

        book.print(0);
    }

}