java - 方法返回零

Question

假设返回 19 个完整座位和剩余 68 个学生的值!请帮忙，据我所知，我正在返回正确的值并将它们分配给正确的变量!

public class JetCalculator
{
    public static void main(String[] args)
    {
        int totalStudents = 3013;
        int jetCapacity = 155;
        int jets;
        int students;
        jets = calculateJets(jetCapacity, totalStudents);
        students = calculateStudents(jetCapacity, totalStudents, jets);

        System.out.println("A total of "+ totalStudents + " student require "+ jets + " full seated jets.");
        System.out.println("There will be " + students + " students remaining");
        System.out.println("_____________________________________________");
        System.out.println(jets);
        System.out.println(jetCapacity);
        System.out.println(students);
    }

    public static int calculateJets(int totalStudents, int jetCapacity)
    {
        int fullJets;
        fullJets = totalStudents / jetCapacity;
        return fullJets;
    }

    public static int calculateStudents( int jetCapacity, int totalStudents, int jets)
    {
        int remainingStudents;
        remainingStudents = jetCapacity * jets;
        return remainingStudents;
    }
}

Answer 1

你这样调用calculateJets

jets = calculateJets(jetCapacity, totalStudents);

但是这个方法的参数名称暗示你已经在调用中调换了它们的顺序

public static int calculateJets(int totalStudents, int jetCapacity)

这意味着您实际上是在使用整数算法计算 155/3013，即 0。