2 задание стенография переделала

package zaschita1;
import java.io.File;
import java.util.Scanner;
import java.io.FileWriter;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.List;

public class Zaschita1 {

public static void encoding() throws Exception{
        System.out.print("Encoding: \n");

        Scanner sc = new Scanner(new File("src//zaschita1//input_word.txt"));
        String word = sc.nextLine();
        System.out.println("Phrase: " + word);

        String[] binAscii = new String[word.length()];
        for (int i = 0; i < binAscii.length; i++ ){
            binAscii[i] = String.format("%16s", Integer.toBinaryString((int) word.charAt(i))).replace(' ', '0');
            System.out.println(word.charAt(i) + " " + (int) word.charAt(i) + " " + binAscii[i]);
        }

        StringBuilder binAsciiConcat = new StringBuilder();//add
        int binAcounter = 0;// add суммарно сколько в слове бит
        for(int i = 0; i < binAscii.length; i ++){//add
            binAsciiConcat.append(binAscii[i]);//add
        }

        List<String> lines = Files.readAllLines(Paths.get("src//zaschita1//input_text.txt"), StandardCharsets.UTF_8);
        FileWriter writer = new FileWriter("src//zaschita1//output.txt", false);

        //List<String> lines - строки текста,
        //binAscii[String] - массив с двоичным преддставлением слова

        System.out.println("lines size: " + lines.size() + " binAsciiConcat: " + binAsciiConcat.toString());

      //  go:
        for(int i = 0; i < lines.size(); i ++){
                System.out.println("lines: "  + i + ": " + lines.get(i));
                String[] textString = lines.get(i).split(" ");
                    for(int g = 0; g < textString.length; g ++){
                        if(binAcounter <= binAsciiConcat.toString().length() - 1){
                            if(binAsciiConcat.toString().charAt(binAcounter) == '1'){
                                writer.append(textString[g] + ' ');
                            }
                            else { // = 0
                                writer.append(textString[g]);
                            }
                            System.out.println("binAcounter binAsciiConcat.toString().length() - 1: " + binAcounter + " " + binAsciiConcat.toString().length());
                            binAcounter++;
                            writer.append(' ');
                            //if(binAcounter == binAsciiConcat.toString().length() - 1){
                           //     break go;
                           //}
                        }
                        else {
                            writer.append(textString[g] + ' ');
                        }
                    }
                writer.append('\n');
        }

        writer.flush();

}
    public static void decoding() throws Exception{
        System.out.println("\nDecoding: ");
        List<String> lines = Files.readAllLines(Paths.get("src//zaschita1//output.txt"), StandardCharsets.UTF_8);
        StringBuilder sb = new StringBuilder();

        for(String line: lines){
            if(line.endsWith(" ")) {
                sb.insert(sb.length(), '1');
            }
           // else if(line.endsWith(Character.toString('\u200B'))){
            else if(line.charAt(line.length() - 1) == '\u200B'){
                sb.insert(sb.length(), '0');
            }
            else break;
        }

        int start = 0, end = 16;
        int[] asciiCode = new int[sb.toString().length() / 16];

        StringBuilder res = new StringBuilder();
        for (int i = 0; i < asciiCode.length; i++ ){
            asciiCode[i] = (char)Integer.parseInt(sb.toString().substring(start, end), 2);
            start += 16;
            end += 16;
            System.out.println("ascii: " + asciiCode[i]);
            res.insert(res.length(), (char)asciiCode[i]);
            //System.out.println("char: " + res.toString());
        }

        FileWriter writerOutput = new FileWriter("src//zaschita1//output_word.txt", false);
        writerOutput.write(res.toString());
        writerOutput.flush();
    }

    public static void main(String[] args) throws Exception{
       encoding();
       //decoding();
    }

}