Thread: FileWriter class in JAVA

HI everyone. I am new in forum. I have little bit knowledge of JAVA programming language .I attach to file and open it with FileWriter class and write in general, for that. Insert a line to the file, but now I would like to read the file and return a variable IP, a line like IP = 182.15.. And vary the IP. Any help would be highly appreciated. Thanks in advanced.

In place of FileWriter you can use a FileReader. After that you can use a BufferedReader to read your file line by line (method "readLine ()). lastly, you examine your line to find out if it interests you or not.

I suggest you to refer following example of FileWriter class', which will give you something idea about the use of this class:
For example:
Here is the code for it

Code:

Properties pop = new Properties();
d.load(new FileInputStream ("ton_fichier"));
/ / Mails to take the IP address
d.getProperty("IP");
//...

Just try the following code and check if it works or not and reply me.