[已解决]ArrayIndexOutOfBoundsException

CarterZhang

package PracticeStudent;

public class PracticeStdent {
        public static void main(String[] args) {
                int[][] student = new int[20][2];
                for(int i = 0;i<student.length;i++) {
                        student[i] = new int[]{i+1};
                        student[i][0] = (int)(Math.random()*5+1);//state:1-5
                        student[i][1] = (int)(Math.random()*26+75);//score:75-100
                }
}
}

运行后，报错：
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
        at Class/PracticeStudent.PracticeStdent.main(PracticeStdent.java:9)

求解答！

最佳答案

月排行榜 / 总排行榜

Sebass

2020-12-21 10:51:42

07行  改为

student[i] = new int[2];

就好了
还有08，09行不对应该改为

student[i][0] = (int)(Math.random()%5+1);//state:1-5
                student[i][1] = (int)(Math.random()%26+75);//score:75-100

跳转到最佳答案楼层

Sebass

07行  改为

student[i] = new int[2];

就好了
还有08，09行不对应该改为

student[i][0] = (int)(Math.random()%5+1);//state:1-5
                student[i][1] = (int)(Math.random()%26+75);//score:75-100