script so far

import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.nio.file.*;
import java.nio.charset.*;
import java.util.List;

public class textmech {
    public static void main(String[] args) throws IOException{
        List<String> list = Files.readAllLines(new File("listglitchesrecelements.txt").toPath(), Charset.defaultCharset() );
        List<String> modifiedlist = null;
        String line;
        for (String s:list) {
            modifiedlist.add(s);
            s = new String(line).toLowerCase();
            s.substring(0).toUpperCase();
            s.replaceAll("final fantasy", "Final Fantasy");
            modifiedlist.add(s);
        }
        for (String s:list) {
            s = s.charAt(0) + s.substring(1).toLowerCase();
            s = s.replaceAll("final fantasy", "Final Fantasy");
            modifiedlist.add(s);
        }
        PrintWriter pw = new PrintWriter(new FileOutputStream("glitchesrecelementsout.txt"));
        for (String k : modifiedlist) {
            pw.println(k);
            pw.close();
        }
    }
}