File reading

Shiminay

stringTokeniser or something like that - it's been a while since I did any JAVA.

---

All the best,

Dav
@B^)
My page of stuff

ecksor

import java.io.*;

class FileSplit {
    public static void main(String args[]) {
        if( args.length < 1 ) {
            System.out.println("Usage: java FileSplit filename");
            System.exit(1);
        }
        String [] linelist = Splitter(args[0]);
        System.out.println("Lines read: " + linelist.length);
        for(int i = linelist.length - 1; i >= 0 ; i-- ) {
            System.out.println(linelist[i]);
        }
    }

    public static String [] Splitter(String filename) {
        int numlines = 32;
        int linesread = 0;
        String [] lines = null;

        try {
            BufferedReader fileinput = new BufferedReader(new FileReader(filename));
            lines = new String[numlines];
            while(fileinput.ready() ) {
                lines[linesread] = fileinput.readLine();
                linesread++;
                if(linesread == numlines) {
                    String [] newarray = new String[numlines+32];
                    System.arraycopy(lines, 0, newarray, 0, numlines);
                    numlines += 32;
                    lines = newarray;
                }
            }
        } catch (FileNotFoundException e) {
            System.out.println("File not found");
        } catch (IOException e ) {
        } finally {
            String [] newarray = new String [linesread];
            System.arraycopy(lines, 0, newarray, 0, linesread);
            lines = newarray;
        }

        return lines;
    }
}

reads in the file specified on the command line and spits it back out in reverse order (line wise that is). The method of creating a new array and using arraycopy seems messy to me, but I guess that's what the garbage collector is for. If anyone knows a better way of resizing an array, lemme know

El_Presidente

(In Java) how do you read in a file and split it up into Strings so that each line of the original file becomes a String and the Strings are all held in an array?