Question

我正在尝试将数组的值传递给我的第二种方法而不是使用switch语句，但我不知道我做错了什么。它一直告诉我标识符是预期的，但我不认为如果我将它们从一个方法传递给另一个方法，我必须再次声明变量。

public static int infoObtainer()
{ 
    int g1, g2, ng1, ng2;
    String sgg, sgng, sngg, sngng;
    sgg=JOptionPane.showInputDialog("Enter number of years if you both plead guilty: ");
    g1=Integer.parseInt(sgg);
    sgng=JOptionPane.showInputDialog("Enter number of years if you plead guilty and he pleads innocent: ");
    g2=Integer.parseInt(sgng);
    sngg=JOptionPane.showInputDialog("Enter number of years if you plead innocent and he pleads guilty: ");
    ng1=Integer.parseInt(sngg); 
    sngng=JOptionPane.showInputDialog("Enter numner of years if you both plead innocent: ");
    ng2=Integer.parseInt(sngng);

    int[] jailtime = {g1,g2,ng1,ng2}; 

    return jailtime;
}

public static void decisionMaker(jailtime[])
{
    if (g1<=ng1)
    {
        if (g2<=ng2)
        {
            if (g1<=g2)
            {
                Sytem.out.println(" Plead Guilty");
            }
            else
            {
                System.out.println("Plead Gulity");
            }
        }
        else
            if (g1<=ng2)
            {
                System.out.println("Can't help");
            }
    }
    else
    {
        if (g2<=ng2)
        {
            if (ng1<=g2)
            {
                System.out.println("Can't help");
            }
            else
            {
                System.out.println("Plead Guilty");
            }
        }
        else
            if (ng1<=ng2)
            {
                System.out.println("Can't help");
            }
            else
            {
                System.out.println("Plead Guilty");
            }
    }
}

Answer 1

像非数组对应的Java数组需要类型定义。

变化

public static void decisionMaker( jailtime[])

到

public static void decisionMaker(int[] jailtime)

Answer 2

检查如何在Java here中定义函数。

再次检查方法的签名。你应该阅读一些基础教程，它快速而有用:)

public static void myFunction (Object myObj) {}

或在您的具体情况

public static void decisionMaker (int[] jailtime) { ... }

请注意，方法中传递的数组的修改值也会因main中的数组而改变。

将int数组传递给方法

2 个答案: