Parsing Files In Java ! 2

[Kadirpatel]

Hi,
My requirement is to parse a file in Java bcoz I have made a template and now I want to add my values in it and save it. So I want to parse the template file in Java. How can I do it?

Thanx.

 

[CatWeasel]

It depends on what you want to parse. If it's in the format of key-value pairs, you can use java.util.Properties.

e.g.
public void doProperties(String myFile)
{
File file = new File(myFile);
Properties prop = new Properties().
prop.load(new FileInputStream(file));

//add new properties, change them or delete them

prop.store(new FileOutputStream(file), "My new list"
}

This is just one way to do it. I hope it's helpful.

Greetings,
Steven.

 

[Kadirpatel]

Thanx for your answer. It has solved my purpose. But now there is one more issue that how can I find a string in a file using Java. I know one method of reading whole file in a String Buffer and do the processing but I want directly to process the file. So what is the solution. Please let me know.

Regards.
Kadir.

 

[CatWeasel]

For directly processing a file you can use java.io.RandomAccessFile. This class supports both reading and writing without having to open a separate Reader and Writer. This class also has a readLine function that returns Strings. Perhaps this is a solution for you.

Greetings,
Steven.

 

[Kadirpatel]

Yes I think that will surely solve my purpose. Thanx for ur valuable support. Will need help next time also.