java - 创建二维数组并用一变量填充第一个数组

Question

我收到错误无法将 int 转换为 int[]，有人可以帮忙吗？

//Create array
int [][] studentResults = new int [numStudents][numExams];

//Fill 1st dimension with Student numbers 1 through numStudents
for (int count = 0; count < numStudents; count++)
    studentResults[count][] = count + 1;

Answer 1

在 Java 中，如果要为数组中的某个条目赋值，则需要指定该数组的所有实例。我建议如下:

//Create array
int [][] studentResults = new int [numStudents][numExams];

//This loops through the two dimensional array that you created 
//And fills the 1st dimension with Student numbers 1 through numStudents.
for (int count = 0; count < numStudents; count++)
    for (int exam = 0; exam < numExams; exam++)
        studentResults[count][exam] = count + 1;

从而迭代每个学生的 studentResults 的每个考试条目。