Class bankService

bankService.java:4–46

import java.util.HashMap;
public class bankService {
    private HashMap<Integer,BankAccout> accounts=new HashMap<>();
    void AccountCreation(int accno,String name,String type,int pin) throws Accountalreadyexception{
     if(accounts.containsKey(accno)){
        throw new Accountalreadyexception("Account Already exist in this Number");
     }else{
        BankAccout acc=new BankAccout(accno, name, type, pin);
        accounts.put(accno, acc);
     }
    }
    BankAccout Login(int accno,int pin) throws AccountNotFoundException,InvalidPinException{
      if(!accounts.containsKey(accno)){
        throw new AccountNotFoundException("Account not Found");
       }
       BankAccout acc=accounts.get(accno);
       if(!acc.pinValidation(pin)){
         throw new InvalidPinException("Invalid pin");
       }
       return acc;
    }
    void transfrer(int accno1,int accno2,double amount)throws AccountNotFoundException,Insufficientexception{
        if(!accounts.containsKey(accno1)){
        throw new AccountNotFoundException("Sender Account not Found");
       }
        if(!accounts.containsKey(accno2)){
        throw new AccountNotFoundException("Receiver Account not Found");
       }
       if(amount<=0){
         throw new IllegalArgumentException();
       }
      BankAccout sender=accounts.get(accno1);
      BankAccout receiver=accounts.get(accno2);
      if((sender.getBalance()>=amount)){
           sender.withdraw(amount);
      }
       else{        
      throw new Insufficientexception("Insufficient funds");
   }
      receiver.deposit(amount);
      sender.addtransaction("Transfer", amount,"Transferred "+amount+ "to Acc"+accno2);
      receiver.addtransaction("Transfer", amount,"Received"+amount+ "From Acc"+accno1);
    }
}