Various input for filename

Question

I have a program in java which takes the qualified filename as a string. I don;t want to change the string name every time in the code if I want to do the same processing on a different file. can you please tell me how can i give the user a facility to enter a filename on which i would do this processing and give him the result.
Thanks

Answer 1

Try organizing your code to allow your main class to process an input string.
public class MainClass{
  public static void main(String argv[]){
    String filename = argv[0];
    new MainCode().process(filename);
public class MainCode{
   public MainCode(){}
  public void process(String filename){
}