IN my java code, i wrote functions in order to write data into a txt file and delete from it. the code just stopped running for some reason. I think it is in this file of code. Please send any tips.This is my code. if nothing is wrong with this file, please tell me.

import java.util.*;
import java.util.regex.Pattern;
import java.time.*;
import java.io.*;
import java.text.*;
import java.time.temporal.ChronoUnit;
import java.nio.file.Files;
import java.nio.file.Paths;

public class input{
public LocalDate date1;

  public input (LocalDate date1){
    this.date1=date1;
  }

  public void getSubject(){
    try{

      long count= Files.lines(Paths.get("savedata.txt")).count();
      Scanner scanner= new Scanner(System.in);
      System.out.println("When you are done entering homework, enter 'done' at subject");

      FileWriter savedata = new FileWriter("savedata.txt", true);
      PrintWriter writer = new PrintWriter(savedata);


      Homework homework1= new Homework("empty", "2024-08-24");


      System.out.println("Enter the subject of the homework");
      homework1.subject= scanner.nextLine();


      if(homework1.subject.equals("done")){

        return;
      }




    writer.println(homework1.subject);

      writer.close();
    }catch(Exception c){

    }
  }

  public void getDate() throws ParseException{

    try{




      long count= Files.lines(Paths.get("savedata.txt")).count();
      Scanner scanner= new Scanner(System.in);

      Scanner readlines = new Scanner("savedata.txt");
    FileWriter savedata = new FileWriter("savedata.txt", true);
    PrintWriter writer = new PrintWriter(savedata);
    Homework homework1= new Homework("empty","2024-08-24" );

    //LocalDate.now()

    System.out.println("Enter the due date of the homework: YYYY-MM-DD");
    homework1.dueDate= scanner.nextLine();

    //LocalDate.parse

      while(homework1.dueDate!="done"){
        writer.println(homework1.dueDate);
        break;
      }

    while(homework1.dueDate.equals("done")){
      File oldfile = new File("savedata.txt");
      File newfile = new File("temp.txt");

      int line=0;
      String currentline;
      FileWriter fw= new FileWriter("temp.txt");
      BufferedWriter bw =new BufferedWriter(fw);
      PrintWriter pw= new PrintWriter(bw);

      FileReader fr= new FileReader("savedata.txt");
      BufferedReader br = new BufferedReader(fr);

      while((currentline=br.readLine())!=null){
        line++;
        if(count!=line){
          pw.println(currentline);
        }
      }

      pw.flush();
      pw.close();
      br.close();
      fw.close();
      bw.close();
      fr.close();

      oldfile.delete();
      File dump=new File("savedata.txt");
      newfile.renameTo(dump);

      break;
     }



       writer.close();




  }catch(Exception c){

  }


}

public void getArray(){
try{
  long count= Files.lines(Paths.get("savedata.txt")).count();
    Scanner scanner= new Scanner(System.in);
    FileWriter savedata = new FileWriter("savedata.txt", true);
   PrintWriter writer = new PrintWriter(savedata);
  Homework homework1= new Homework("empty", "2024-08-24");

  System.out.println("Enter parts of homework. Write done when done.");

    String finish="";

    while(finish.equals("done")){
      File oldfile = new File("savedata.txt");
      File newfile = new File("temp.txt");

      int line=0;
      String currentline;
      FileWriter fw= new FileWriter("temp.txt");
      BufferedWriter bw =new BufferedWriter(fw);
      PrintWriter pw= new PrintWriter(bw);

      FileReader fr= new FileReader("savedata.txt");
      BufferedReader br = new BufferedReader(fr);

      while((currentline=br.readLine())!=null){
        line++;
        if((count!=line)|| (count-1!=line)){
          pw.println(currentline);
        }
      }

      pw.flush();
      pw.close();
      br.close();
      fw.close();
      bw.close();
      fr.close();

      oldfile.delete();
      File dump=new File("savedata.txt");
      newfile.renameTo(dump);

      break;
    }
    while(!finish.equals("done")) {
      finish= scanner.nextLine();
      if(!finish.equals("done")) {
        parts newpart = new parts(finish);
        homework1.addPart(newpart);
      }
      }




      System.out.println(homework1.part);

      writer.println(homework1.part);


      writer.close();
    }catch(Exception c){

    }
}
}

I was expecting my code to run normally without errors but the code runner just ends.