Read from file in eclipse

Question

I m trying to read from a text file to input data to my java program  However  eclipse continuosly gives me a Source not found error no matter where I put the file   I ve made an additional sources folder in the project directory  the file in question is in both it and the bin file for the project and it still can t find it    I even put a copy of it on my desktop and tried pointing eclipse there when it asked me to browse for the source lookup path   No matter what I do it can t find the file   here s my code in case it s pertinent   System out println System getProperty  user dir         File file   new File  file txt          Scanner scanner   new Scanner file     in addition  it says the user directory is the project directory and there is a copy there too   I have no clue what to do   Thanks  Alex  after attempting the suggestion below and refreshing again  I was greeted by a host of errors   FileNotFoundException Throwable   lt init gt  String  line  195    FileNotFoundException Exception   lt init gt  String  line  not available  FileNotFoundException IOException   lt init gt  String  line  not available    FileNotFoundException  lt init gt  String  line  not available     URLClassPath JarLoader getJarFile URL  line  not available   URLClassPath JarLoader access 600 URLClassPath JarLoader  URL  line  not available   URLClassPath JarLoader 1 run   line  not available   AccessController doPrivileged PrivilegedExceptionAction lt T gt   line  not available  native method   URLClassPath JarLoader ensureOpen   line  not available  URLClassPath JarLoader  lt init gt  URL  URLStreamHandler  HashMap  line  not available    URLClassPath 3 run   line  not available     AccessController doPrivileged PrivilegedExceptionAction lt T gt   line  not available  native method   URLClassPath getLoader URL  line  not available  URLClassPath getLoader int  line  not available  URLClassPath access 000 URLClassPath  int  line  not available   URLClassPath 2 next   line  not available    URLClassPath 2 hasMoreElements   line  not available     ClassLoader 2 hasMoreElements   line  not available  CompoundEnumeration lt E gt  next   line  not available    CompoundEnumeration lt E gt  hasMoreElements   line  not available     ServiceLoader LazyIterator hasNext   line  not available     ServiceLoader 1 hasNext   line  not available    LocaleServiceProviderPool 1 run   line  not available    AccessController doPrivileged PrivilegedExceptionAction lt T gt   line  not available  native method   LocaleServiceProviderPool  lt init gt  Class lt LocaleServiceProvider gt   line  not available   LocaleServiceProviderPool getPool Class lt LocaleServiceProvider gt   line  not available  NumberFormat getInstance Locale  int  line  not available    NumberFormat getNumberInstance Locale  line  not available   Scanner useLocale Locale  line  not available    Scanner  lt init gt  Readable  Pattern  line  not available    Scanner  lt init gt  ReadableByteChannel  line  not available  Scanner  lt init gt  File  line  not available       code used   System out println System getProperty  user dir         File file   new File System getProperty  user dir       file txt          Scanner scanner   new Scanner file

User · Answer

You are searching reading the file  fiel txt  in the execution directory  where the class are stored  i think     If you whish to read the file in a given directory  you have to says so    File file   new File System getProperty  user dir        file txt      You could also give the directory with a relative path  eg    images photo gif  for a subdirecory for example   Note that there is also a property for the separator  hard-coded to     in my exemple   regards Guillaume

User · Answer

There s nothing wrong with your code  the following works fine for me when I have the file txt in the user dir directory   import java io File  import java util Scanner   public class testme       public static void main String   args            System out println System getProperty  user dir             File file   new File  file txt            try               Scanner scanner   new Scanner file             catch  Exception e            System out println e                       Don t trust Eclipse with where it says the file is  Go out to the actual filesystem with Windows Explorer or equivalent and check   Based on your edit  I think we need to see your import statements as well

User · Answer

Have you tried using an absolute path   File file   new File System getProperty  user dir       file txt

User · Answer

you just need to get the absolute-path of the file  since the file you are looking for doesnt exist in the eclipse s runtime workspace you can use - getProperty   or getLocationURI   methods to get the absolute-path of the file

User · Answer

Sometimes  even when the file is in the right directory  there is still the  file not found  exception  One thing you could do is to drop the text file inside eclipse  where your classes are  on the left side  It is going to ask you if you want to copy  click yes  Sometimes it helps

User · Answer

I am using eclipse and I was stuck on not being able to read files because of a  file not found exception   What I did to solve this problem was I moved the file to the root of my project  Hope this helps

User · Answer

Did you try refreshing  right click -  refresh  the project folder after copying the file in there  That will SYNC your file system with Eclipse s internal file system   When you run Eclipse projects  the CWD  current working directory  is project s root directory  Not bin s directory  Not src s directory  but the root dir   Also  if you re in Linux  remember that its file systems are usually case sensitive

[java] Read from file in eclipse

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