java - 尝试为银行应用程序调用名为 addAccount 的方法，但它一直给出 .class is Expected 错误

Question

当我尝试调用 addAccount 方法时，这给我带来了错误，说我尝试调用它的行上需要 .class。
我正在尝试进行一项分配，据此我应该创建一个名为 addAccount 的方法，该方法接受两个参数； accountName 和 accountBalance 并将参数放入 accountArray

import java.util.*;
public class bank
{
    public static void main(String[]args)
    {
        Scanner sc = new Scanner(System.in);
        int choice = 0;
        int accountNo = 0;
        double accountBal = 0;
        int[] accountNoArray = new int[20];
        int[] accountBalArray = new int[20];
        displayMenu();
        System.out.print("Please Enter Your Choice: ");
        choice = sc.nextInt();
        if(choice == 1)
        {
        System.out.print("Please Enter NRIC number: ");
        accountNo = sc.nextInt();
        System.out.print("Please Enter Account Balance: ");
        accountBal = sc.nextInt();
        }
        public static void displayMenu()
        {
        System.out.println("Menu");
        System.out.println("1. Add an account");
        System.out.println("2.Search an account with the given account number");
        System.out.println("3.Display accounts below the given balance");
        System.out.println("4.Exit");
        }
        public static void addAccount(int accountNo,double accountBal)
        {

        }
}

Answer 1

在定义 displayMenu 方法之前缺少右大括号。以下版本在语法上是正确的:

public class Bank {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int choice = 0;
        int accountNo = 0;
        double accountBal = 0;
        int[] accountNoArray = new int[20];
        int[] accountBalArray = new int[20];
        displayMenu();
        System.out.print("Please Enter Your Choice: ");
        choice = sc.nextInt();
        if (choice == 1) {
            System.out.print("Please Enter NRIC number: ");
            accountNo = sc.nextInt();
            System.out.print("Please Enter Account Balance: ");
            accountBal = sc.nextInt();
        }
    }

    public static void displayMenu() {
        System.out.println("Menu");
        System.out.println("1. Add an account");
        System.out.println("2.Search an account with the given account number");
        System.out.println("3.Display accounts below the given balance");
        System.out.println("4.Exit");
    }

    public static void addAccount(int accountNo, double accountBal) {

    }
}