Problem in replacing key/value pair in properties file

[Kathiresan Chinnasamy]

Hi Friends,

My Problem is :

If i replace any value for corresponding key, its replaces fine and the same way , its remove all (#)comment files.
How Can i resolve this problem:

for Example:

The Existing Properties file contains:

# comment 1
one = 1
# comment 2
two = 2

After Replacing the key of one

#comment 1
# time Stamp
one = hi
two = 2

Here its removes the # comment 2
but i want to retain that too

If any body know, help me
Thanks in advance

[Jesus Angeles]

How are you editing it?

Are you doing it programmatically?

Or are you using a text editor?

Or an IDE?

[Kathiresan Chinnasamy]

i am putting here what i done

FileInputStream in = new FileInputStream("sample.properties");
defaultproperties.load(in);
System.out.println(defaultproperties.clone());
defaultproperties.setProperty(replceKeyVal, result);
FileOutputStream os = new FileOutputStream("sample.properties");
defaultproperties.store(os,"Comment 1");

[Jesus Angeles]

Refer to this http://java.sun.com/j2se/1.5.0/docs/api/java/util/Properties.html.

The .store method writes a comment on the first line.
The second line would be, as you showed, a date/time data
The third line up to the last line, are the contents of the properties.

In the link above, no other comments are mentioned to be writeable anywhere else, other than the first 2 lines.

You can use an xml properties file, for better comment-capability. Refer to the same link above. Look at methods like .storeToXml.