public void deleteAcc() throws IOException
{
Scanner in = new Scanner(System.in);
    System.out.println("Which Account do you want to delete");
int ch = in.nextInt();
File x = new File(accDir+ch+".txt");
boolean delete = x.delete();
if(delete)
System.out.println("Deleted!");
else 
System.out.println("Cannot Delete");
accMng();
}