Компиляторы 4 лаба (7) Reader & Main

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.io.*;
import java.util.ArrayList;
import java.io.File;
import java.io.InputStreamReader;
import java.io.FileInputStream;
import java.lang.String;


class Reader {
    private File openedFile_;
    private BufferedReader reader_;
    private ArrayList<String> readedText_;

    public Reader(String path) {
        openedFile_ = new File(path);
        try {
            reader_ = new BufferedReader(new InputStreamReader(new FileInputStream(openedFile_), "UTF-8"));
        } catch (UnsupportedEncodingException exc) {
            System.out.println(" UTF-8 exception. " + exc.getMessage());
        } catch (FileNotFoundException exc) {
            System.out.println("File Not Found. " + exc.getMessage());
        }
        readedText_ = new ArrayList<String>();
    }

    public ArrayList<String> Read() {
        String currentString;
        try {
            while((currentString = reader_.readLine()) != null) {
                readedText_.add(currentString);
            }
        } catch (IOException exc) {
            System.out.println("IOException while reading file. " + exc.getMessage());
        }
        return new ArrayList<String>(readedText_);
    }
}


public class main {
    public static void main(String args[]) {
        String program;
        try {
            File f = new File("C:/Users/Denis/file.txt");
            char[] CB = new char[(int) f.length()];
            Reader reader = new InputStreamReader(new FileInputStream(f), "UTF-8");
            reader.read(CB);
            program = new String(CB);
        } catch (Exception ex) {
            System.out.println(ex);
            return;
        }

        Compiler comp = new Compiler();
        Scanner scan = new Scanner(program, comp);

        Token t;
        while( (t = scan.NextToken()).Tag() != DomainTag.END_OF_PROGRAM){
            System.out.print(t.Tag() + " ");
            System.out.print(t.Coords() + " ");
            switch (t.Tag()){
                case IDENT:
                    System.out.print((((IdentToken) t).Code) + "\n");
                    break;
                case OPER:
                    System.out.print(((OperToken)t).Num + "\n");
                    break;
                case NUMBER:
                    System.out.print(((NumberToken)t).Value + "\n");
                    break;
            }
        }
        comp.OutputMessages();
    }
}