How to write one time header code in my prog ?

[redcodeheaven]

Hi all,this program append records to a file,I like to know if ispossible to include a header something like " welcome to my program " but I need it one time to print on the file not everytime I add a record or when I login to my program,is it possible ?
and what about searching inside the records fields ,does ArrayList is the best solution ? knowing that the toString() methods includes many fiels (name,last name,..etc )here is my code ,thanks everybody for any help....

public void writeToFile(String filename){
            try {
                String fileName = "myFile.txt";
                BufferedWriter out = new BufferedWriter(new FileWriter(fileName, true));
 
 
                out.write(toString() + "\n"); 
                out.flush();
 
                 out.newLine();
                out.close();
            }
            catch (Exception e) {
                System.out.println("IOException:");
                e.printStackTrace();
            }
        }
    }
 
 

[JosAH]

Before opening (and appending to) the file check if the file exists; if so it most likely already has a header written to it. Read the API documentation for the File class.

kind regards,

Jos