Question

我有一个有效的代码，但我的for循环不计入1 - 7.基本上我需要这个循环来运行并计算1,2,3,4,5,6,7

这是我的代码：

public class Course {
public static int a;
public static String code;
public static int CreditHours;
Course() {} 
Course(int newA) {a = newA;}
public static int getCourse(int newA) {
    for (int i = 0; i <= 7; i = i + 1) {
        newA = i;
        a=newA;
    }
    return a;

这是我的输出：

course Objects each has a code (e.g. IT1006) and credit hours (e.g. 6)
The number inside the [] is the display order number
The number inside the () is the credit hours
[7] IT2249 (6)

我需要[7] IT2249（6），但我需要从[1]开始并计算到[7]

这是一项学术任务。

Answer 1

为了给你一个完全准确的答案，我必须看看你是如何初始化你的类并调用getCourse（int）函数的。但至少要指出你正确的方向 - 问题是你没有循环任何打印功能。你需要将你的for循环移到外面并围绕你的getCourse（int）函数。

以下是您的代码MIGHT的示例：

public class Course {
    public static int a;
    public static String code;
    public static int CreditHours;
    Course() {} 
    Course(int newA) {a = newA;}
    public static int getCourse(int newA) {
        newA = i;
        a=newA;
        return a;
    }
}

//outside your Course class, wherever your print function is in, main?

for (int i = 1; i <= 7; i = i + 1) {
     int courseNumber = Course.getCourse(i)
     System.out.println("["+courseNumber+"]");
}

干杯

Answer 2

Javier Gonzalez帮我解答了答案。我完全删除了getCourse方法并将for循环移动到输出语句。

以下是方法修复：

public class Course {
    public static int a;
    public static String code;
    public static int CreditHours;
    Course() {} 
    Course(int newA) {a = newA;}

这是输出语句：

public static void main(String[] args) {
    System.out.println("Quenten's Copy");
    System.out.println("course Objects each has a code (e.g. IT1006) and 
    credit hours (e.g. 6)");
    System.out.println("The number inside the [] is the display order number");
    System.out.println("The number inside the () is the credit hours");
    for (int i = 1; i <= 7; i++) {
        a = i;
    System.out.println("[" + a + "] " + Course.getCode(code) + " (" + Course.getCreditHours(CreditHours) + ")");
    }
}

}

这是最终输出：

course Objects each has a code (e.g. IT1006) and credit hours (e.g. 6)
The number inside the [] is the display order number
The number inside the () is the credit hours
[1] IT1006 (6)
[2] IT4782 (3)
[3] IT4789 (3)
[4] IT4079 (6)
[5] IT2230 (3)
[6] IT3345 (3)
[7] IT2249 (6)

感谢您的帮助。我不知道如何让for循环正常运行，但现在我意识到它必须在输出发生时运行。

For循环从1到7计数

2 个答案: