I cant get this program working. Cant really sort out where i am wrong. The program works fine without the save/load object feature. Please help!!

import java.io.*;
class Account
    {

        String name ,accno;
        double bal; 
        void withdraw(double amt)
            {   
                 System.out.print("Processing");
                 for(double pr = 0; pr<500000000; pr++);
                 System.out.print(".");
                 for(double pr = 0; pr<500000000; pr++);
                 System.out.print(".");
                 for(double pr = 0; pr<500000000; pr++);
                 System.out.println(".");
                if(bal-amt >=500)
                    {
                        bal -= amt;
                        System.out.println(name + " , Amount has been successfully withdrawn,your current balance = " + bal);
                    }
                else
                    {
                        System.out.println("Not enough balance");
                    }
            }
        void deposit(double amt)
            {
                 System.out.print("Processing");
                 for(double pr = 0; pr<500000000; pr++);
                 System.out.print(".");
                 for(double pr = 0; pr<500000000; pr++);
                 System.out.print(".");
                 for(double pr = 0; pr<500000000; pr++);
                 System.out.println(".");
                bal += amt;
                System.out.println(name + " , Amount successfully deposited, Your current balance = " + bal);
            }
        void view()
            {
                System.out.print("Processing");
                 for(double pr = 0; pr<500000000; pr++);
                 System.out.print(".");
                 for(double pr = 0; pr<500000000; pr++);
                 System.out.print(".");
                 for(double pr = 0; pr<500000000; pr++);
                 System.out.println(".");
                System.out.println("Name : " + name + "\nAccount No.:" + accno + "\nBalance : " + bal);
            }
        void newAcc(int i)throws IOException
            {
                BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
                System.out.println("Enter Name:");
                name = in.readLine();
                System.out.println("Enter the amount you want to deposit (min Rs 500)");
                double deposit = Double.parseDouble(in.readLine());
                if(deposit >500)
                    {
                        bal = deposit;
                        int j = i;int k = 1;
                        while(j>9)
                        {
                            j=j/10;
                            k++;
                        }
                        accno = "BK";
                        for(int w = k;w<5;w++)
                        {
                            accno = accno + "0";
                        }
                        accno = accno + Integer.toString(i+1);
                        System.out.print("Processing");
                        for(double pr = 0; pr<500000000; pr++);
                        System.out.print(".");
                        for(double pr = 0; pr<500000000; pr++);
                        System.out.print(".");
                        for(double pr = 0; pr<500000000; pr++);
                        System.out.println(".");
                        System.out.println("Account Successfully created! Your account no is = " + accno);
                    }
                else
                    {
                        System.out.println("Sorry, the minimum amount must be Rs 500");
                    }


            }

        public static void main()
            {

                try
                    {
                         BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
                         FileInputStream n = new FileInputStream("savefile.sav");
                         ObjectInputStream lo = new ObjectInputStream(n);
                         Account accarray[] = (Account[])lo.readObject();

                int i = 0;
                System.out.println("Welcome to Soumya Bank! ☺");
                for(;;)
                {
                for(double pr = 0; pr<500000000; pr++);
                System.out.println("Enter 1 if you're an user \nEnter 2 if you are an employee \nPress 0 to exit");
                int ch1 = Integer.parseInt(in.readLine());
                if(ch1 == 0)
                    {
                        try
                        {
                            FileOutputStream fos = new FileOutputStream("savefile.sav");
                            ObjectOutputStream os = new ObjectOutputStream(fos);
                            os.writeObject(accarray);
                            os.flush();
                            os.close();
                        }
                        catch(Exception e)
                        {
                        }
                        break;
                    }
                switch(ch1)
                    {

                        case 1:

                        for(;;)
                        {
                        System.out.println("Press 1 to create a new Account. \nPress 2 to view current account status. \nPress 3 to withdraw amount. \nPress 4 to deposit amount");
                        int ch2 = Integer.parseInt(in.readLine());
                        String ac ="";
                        if(ch2 != 1 && ch2 <=4)
                            {
                                System.out.println("Enter account no.");
                                ac = in.readLine();
                            }
                        switch (ch2)
                            {
                                case 1:
                                accarray[i] = new Account();
                                accarray[i].newAcc(i);
                                i++;
                                break;


                                case 2:
                                int c = -1;
                                for(int a = 0; a<i;a++)
                                    {
                                        if(ac.equals(accarray[a].accno) == true)
                                            {
                                                accarray[a].view();
                                                c=a;
                                                break;

                                            }
                                     }
                                if(c == -1)
                                    {
                                        System.out.println("Not found!");


                                    }
                                break;

                                case 3:
                                int c1 = -1;
                                for(int a = 0; a<i;a++)
                                    {
                                        if(ac.equals(accarray[a].accno) == true)
                                            {
                                                System.out.println("Welcome, " + accarray[a].name + ", Enter amount to be withdrawn");
                                                accarray[a].withdraw(Double.parseDouble(in.readLine()));
                                                c1=a;
                                            }
                                     }
                                if(c1 == -1)
                                    {
                                        System.out.println("Not found!");

                                    }
                                break;

                                case 4:
                                int c2 = -1;
                                for(int a = 0; a<i;a++)
                                    {
                                        if(ac.equals(accarray[a].accno) == true)
                                            {
                                                System.out.println("Welcome, " + accarray[a].name + ", Enter amount to be deposited");
                                                accarray[a].deposit(Double.parseDouble(in.readLine()));
                                                c2=a;
                                            }
                                     }
                                if(c2 == -1)
                                    {
                                        System.out.println("Not found!");

                                    }

                            }
                        System.out.println("Press 0 for access menu,9 to exit to main menu");
                        int chx = Integer.parseInt(in.readLine());
                        if(chx == 0)
                                    {
                                        continue;
                                    }
                                else
                                    {
                                        break;
                                    }
                        }

                        break;

                        case 2:
                        System.out.print("Enter your 8 digit Verification ID :");
                        int vid = Integer.parseInt(in.readLine());
                        int sum=0;
                        while(vid>0)
                            {
                                sum = sum + vid%10;
                                vid = vid/10;
                            }
                        if(sum == 35)
                            {
                                System.out.println("Access Granted!");
                                for(;;)
                                {
                                System.out.println("Enter 1 to know the no of members \nEnter 2 to know the total amount deposited \nEnter 3 to display the list of members along with their account balance");
                                int ch3 = Integer.parseInt(in.readLine());
                                switch(ch3)
                                    {
                                        case 1:
                                        System.out.println("Total no of members = " + i);
                                        break;
                                        case 2:
                                        double s=0;
                                        for(int pr = 0; pr<i;pr++)
                                            {
                                                s = s + accarray[pr].bal;
                                            }
                                        System.out.println("Total amount deposited = " + s );
                                        break;
                                        case 3:
                                        System.out.println("Name     Account No      Balance");
                                        for(int pr = 0; pr<i;pr++)
                                            {
                                                System.out.println(accarray[pr].name + "     " + accarray[pr].accno + "     " + accarray[pr].bal);
                                            }
                                        break;
                                    }
                                System.out.println("Press any key to continue or 0 to exit to menu");
                                int ch4 = Integer.parseInt(in.readLine());
                                if(ch4==0)
                                    {
                                        break;
                                                                            }
                                else
                                    {

                                        continue;
                                    }
                                }
                            }
                        else
                            {
                                System.out.println("Access Denied, Invalid Verification ID");
                            }
                        }
                  }
                  }
                catch(Exception e)
                    {
                         e.printStackTrace();
                    }
                }
        }

Lines 115-117:

catch(Exception e)
{
}

How many times have we said this in the Java forum...
Never NEVER NEVER do this when writing new code.

If/when there is an error you just told Java that you didn't want to know anything about it, and please discard the detailed error message that Java just created for you.
ALWAYS put an e.printStackTrace(); in your catch blocks until/unless you have a good reason to do something else.

You also have nested loops spanning 170 lines of incorrectly indented code. Nobody is going to waste any time trying to read or understand that.

So: make sure you print the stack trace for every exception, sort out the indentation of your code, make those loops shorter by refactoring some or all of their contents into separate methods, run the program again, and report back here where somneone will help.

Comments
hear ye, hear ye... totally agree.
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