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我的一种方法中有一个名为“数量”的变量,但我需要在另一种方法中引用它。我不确定使用的语法。

这是代码:

public static void startup()
{
    String message = "Welcome to Toronto Mutual!";
    //prompts user to enter their employee ID
    String logIn = JOptionPane.showInputDialog("Please enter your employee `enter code here`ID.");
    int employeeID = Integer.parseInt(logIn);

    String input = JOptionPane.showInputDialog("Please enter the transaction `enter code here`type, bank ID and amount all separated by a comma.");
    input=input.toUpperCase();
    if (input.equals("END")){
        JOptionPane.showMessageDialog(null,"Goodbye.");
        System.exit(0);
    }
    else
    {
        int balance = 100;
        String []transaction = new String[3];
        transaction = input.split(",");
        String type = transaction[0]; 
        int bankID = Integer.parseInt(transaction[1]);
        type=type.toUpperCase();
... // there's more but it's irrelevant

如何在方法之外使用变量“amount”和“bankID”?

4

1 回答 1

1

两种方式:

  1. 通过参数传递amount给另一个方法

    private void otherMethod(int amount) {...}

  2. 创建一个实例变量,以便您可以在类范围内访问它

    private int amount;

    如果你走这条路线,最好使用getter和setter。

    public int getAmount() {
        return amount;
    }
    
    public void setAmount(int amount) {
        this.amount = amount;
    }
    
于 2013-06-02T16:56:19.383 回答