小编Bak*_*s92的帖子

我正在用Java编写兴趣计算器.程序提示用户输入,并使用该输入计算某个银行帐户的利息(检查,储蓄或CD).

这是我的程序的要点,它非常简单.但是现在我很难理解为什么return语句在createAccount方法中不起作用.任何帮助,将不胜感激.

Banker.java:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Banker {

// Array for type of bank account
public static void createAndShowGUI() {


    // Declare strings for period, balance, rate
    String period;
    String balance;
    String rate;
    String type;
    String input;

    // Prompt for account type
    String[] accttype = {"Checking", "Savings", "CD"}; // Array of bank acct types
    input = (String) JOptionPane.showInputDialog(null, "Choose account...",
            "Choose bank account type", JOptionPane.QUESTION_MESSAGE, null,
            accttype, // Array of acct types
            accttype[0]); // First …