INT []不能被转换成int [英] int [] cannot be converted to int

问题描述

我想用一个二维数组的成绩册方法，它有学生姓名，然后是考试成绩。在课堂上，我有如下：

 私人诠释numberOfStudents;
私有String [] studentName;
私人诠释examNumber;
私人诠释[] examScores;
私人INT [] []成绩册;公共ExamAverage（）
{
numberOfStudents = 0;
studentName =新的String [numberOfStudents]
examNumber = 0;
examScores =新INT [numberOfStudents]
成绩册=新INT [numberOfStudents] [examScores];
 

不过，我得到一个错误INT []不能转换成int。

解决方案

您有：

  =成绩册新INT [numberOfStudents] [examScores];
 

但 examScores 是 INT [] 。阵列的尺寸必须是一个 INT ，所以 examScores 不能用作数组维（我能理解你的困惑错误，因为它是多么的文字：它想要一个 INT ，但是你给它一个 INT [] ）<。 / p>

通过你的描述来看我猜你的意思线沿线的东西更多：

  =成绩册新INT [numberOfStudents] [numberOfExams];
 

其中， numberOfExams 是 INT 你需要，包括考试的次数。只是一个猜测，但。

I want to use a 2D array for a gradebook method, where it has the student names, then the exam scores. In the class I have as follows.

private int numberOfStudents;    
private String [] studentName;
private int  examNumber;
private int [] examScores;
private int [][] gradebook;

public ExamAverage ()
{
numberOfStudents = 0;
studentName = new String[numberOfStudents];
examNumber = 0;
examScores = new int [numberOfStudents]; 
gradebook = new int [numberOfStudents][examScores];

Yet I get an error int[] cannot be converted to int.

解决方案

You have:

gradebook = new int [numberOfStudents][examScores];

But examScores is an int[]. Array dimensions have to be an int, so examScores cannot be used as an array dimension (I can understand your confusion about the error, given how literal it is: it wants an int but you gave it an int[]).

Judging by your description I'm guessing you mean something more along the lines of:

gradebook = new int [numberOfStudents][numberOfExams];

Where numberOfExams is an int you'll need, containing the count of exams. Just a guess, though.

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