从Java中的其他方法中提取数据并找到正确的返回类型

Question

I am going to explain this as best I can.. I have a user input data in the main to add information. It goes through the bankparser class to split up the data which inevitably passes through a third class irrelevant to this code. However, I get an error when trying to print the banks. I am 95% positive it is because my return in the BankParser class is null. I am not sure what return type it requires since the type is actually another class. Does anyone know how to resolve this? Thanks!

I want the output when I print the bank information to look something like this: Bank name: BankName Bank ID: 12345 Bank address: Boston, MA

MAIN

---

case 'A':   //Add Bank
           System.out.print("Please enter the bank information:\n");
           inputInfo = scan.nextLine();
           bank1 = BankParser.bankParser(inputInfo);
           accounts[index] = bank1;
           index++;
           break;
         case 'B':   //Display banks
           for (int i=0; i< index; i++)
                    System.out.print(accounts[i].toString());
           break;

BankParser

---

public class BankParser {

public static Bank bankParser(String lineToParse)
{
    Address AddressSetter = new Address();
    Bank BankSetter = new Bank();

    //Take in user data and segregate by bankName/bankID/city,state

    String bankInfo = lineToParse;

    String[] bankInfoArray = lineToParse.split("/"); //split array data

    String bankName = bankInfoArray[0];
    String bankID = bankInfoArray[1];
    String bankCity = bankInfoArray[2];
    String bankState = bankInfoArray[3];

    AddressSetter.setCity(bankCity);
    AddressSetter.setState(bankState);
    BankSetter.setBankAddress(bankCity, bankState);
    BankSetter.setBankID(bankID);
    BankSetter.setBankName(bankName);

    System.out.println(bankInfoArray[0]);


    return null;








}

}

Answer 1

The bankParser method header says it should return a Bank class object, but it is set to return null

Trying to call that and save the result will always give you a null there. Based on this line in BankParser, it looks like it is used to print itself

System.out.println(bankInfoArray[0]);