Reading a properties file

[peiceonly]

Hi
How can I read a properties file n java ?
The file is named config.properties.
Do we need additional jars for it ?
Should I read it as output stream

[goldhouse]

Code:

 // Read properties file.
    Properties properties = new Properties();
    try {
        properties.load(new FileInputStream("filename.properties"));
    } catch (IOException e) {
    }
    
    // Write properties file.
    try {
        properties.store(new FileOutputStream("filename.properties"), null);
    } catch (IOException e) {
    }

[orchid]

Sometimes I get an error that my application cannot find this properties file. I have been having a lot of issues with this lately. Any clues why?

[levent]

Quote:

Sometimes I get an error that my application cannot find this properties file. I have been having a lot of issues with this lately. Any clues why?

Are you giving correct path to properties file? If properties file is not in the current working directory, you should give correct path (e.g. c:/1.properties or /home/levent/1.properties) to the FileInputStream and FileOutputStream constructors.

[orchid]

Here is the error I am getting:
05/10/2007 10:12:58 [http-9090-Processor24]:med.tas.commons.util.Settings.loadSettingsFile()2 26 Cannot load settings file constants.conf; bad path supplied or file does not exist
java.io.FileNotFoundException: C:\Documents%20and%20Settings\pp\workspace\BarCode PrintingService\web\WEB-INF\classes\constants.conf (The system cannot find the path specified)
But my file IS in the location that it mentions above. Why can it not find the path? Am running eclipse/tomcat.
thanks

[goldhouse]

Include a file such that there is no space between the folder names in the path like "Docments And Settings"