Bank Account Manager

package manager;

import model.BankAccount;

import dataaccess.BankAccountDAO;

public class BankAccountMgr {

BankAccountDAO badao=(BankAccountDAO)new BankAccountDAO();

public BankAccount[] retrieveAcctType(String id)throws Exception

{

BankAccountDAO bDAO=new BankAccountDAO();

try{

bDAO.openConnection();

BankAccount[] result=bDAO.retrieveAccType(id);

return result;

}

catch(Exception e)

{

throw e;

}

finally

{

bDAO.closeConnection();

}

}

public boolean updatebalance(String custId,Integer fromaccId,Integer toaccId,Float tranamount,String accounttype)

throws Exception{

BankAccountDAO bDAO=new BankAccountDAO();

boolean b;

try{

bDAO.openConnection();

b=bDAO.updatebalance(custId,fromaccId,toaccId,tranamount,accounttype);

}catch(Exception e)

{

throw e;

}finally

{

bDAO.closeConnection();

}

return b ;

}

public int validateaccount (int accountno) throws Exception{

BankAccountDAO bDAO=new BankAccountDAO();

int result;

try{

bDAO.openConnection();

result = bDAO.validateaccount(accountno);

}

catch(Exception e)

{

throw e;

}finally

{

bDAO.closeConnection();

}

return result ;

}

}