java - 如何通过返回主方法然后输入第二个方法将两个并行数组从一种方法移动到另一种方法？

Question

我需要字符串和 double 组从 inputAccept 到表:

    inputAccept();

    table(names, costs);

    public static void inputAccept() {
           Scanner scan = new Scanner(System.in);
           String[] names = {"","","","","","","","","",""};
           double[] costs = new double[10];

            for (int i = 0; i < 10; i++)
            {
                System.out.println("Enter the name of item " + (i + 1) + ": ");
                names[i] = scan.nextLine();
                System.out.println("Enter item cost: ");
                costs[i] = scan.nextDouble();
            }
     }

    public static void table(String[] names, double[] costs) {
    //insert code using the arrays
    }

我知道这是错误的，但我不知道如何修复它。

Answer 1

您可以在 main 方法中创建两个数组，然后首先将它们传递到 inputAccept 方法中，然后将这两个数组传递到 table 方法中:

    public static void main(String[] args) {
        double[] costs = new double[10];
        String[] names = {"","","","","","","","","",""};
        inputAccept(names, costs);
        table(names, costs);
    }

    public static void inputAccept(String[] names, double[] costs) {
        Scanner scan = new Scanner(System.in);
        for (int i = 0; i < 10; i++)
        {
            System.out.println("Enter the name of item " + (i + 1) + ": ");
            names[i] = scan.nextLine();
            System.out.println("Enter item cost: ");
            costs[i] = scan.nextDouble();
        }
    }

    public static void table(String[] names, double[] costs) {
    //insert code using the arrays
    }