Java reading a file from current directory

Question

I want a java program that reads a user specified filename from the current directory  the same directory where the  class file is run    In other words  if the user specifies the file name to be  myFile txt   and that file is already in the current directory   reader   new BufferedReader new FileReader  myFile txt       does not work  Why   I m running it in windows

User · Answer

If you know your file will live where your classes are  that directory will be on your classpath  In that case  you can be sure that this solution will solve your problem   URL path   ClassLoader getSystemResource  myFile txt    if path  null           The file was not found  insert error handling here   File f   new File path toURI      reader   new BufferedReader new FileReader f

User · Answer

try using     E g   File currentDirectory   new File         This worked for me

User · Answer

None of the above answer works for me  Here is what works for me   Let s say your class name is Foo java  to access to the myFile txt in the same folder as Foo java  use this code   URL path   Foo class getResource  myFile txt    File f   new File path getFile     reader   new BufferedReader new FileReader f

User · Answer

Try this   BufferedReader br   new BufferedReader new FileReader  java module name src file name txt

User · Answer

Thanks  Laurence Gonsalves your answer helped me a lot  your current directory will working directory of proccess so you have to give full path start from your src directory like mentioned below  public class Run   public static void main String   args        File inputFile   new File  quot   src main java input txt quot        try           Scanner reader   new Scanner inputFile           while  reader hasNextLine                  String data   reader nextLine                System out println data                                  reader close          catch  FileNotFoundException e            System out println  quot scanner error quot            e printStackTrace               While my input txt file is in same directory

User · Answer

Files in your project are available to you relative to your src folder  if you know which package or folder myfile txt will be in  say it is in   ----src --------package1 ------------myfile txt ------------Prog java   you can specify its path as  src package1 myfile txt  from Prog java

User · Answer

The current directory is not  necessarily  the directory the  class file is in  It s working directory of the process   ie  the directory you were in when you started the JVM   You can load files from the same directory  as the  class file with getResourceAsStream    That ll give you an InputStream which you can convert to a Reader with InputStreamReader      Note that this  directory  may actually be a jar file  depending on where the class was loaded from

User · Answer

Try  System getProperty  user dir     It returns the current working directory

[java] Java, reading a file from current directory?

Examples related to java