Question

java对象数组初始化空指针异常

public class Test{
public static void main(String args[]){
int[] id1 = {1,2,3,4,5,6,7,8,9,10};
String[] name1 = {"a","b","c","d","e","f","g","h","i","j"};
for(int i=0;i<10;i++){
Student.stu[i] = new Student(id1[i],name1[i]);
}
}
}
public class Student{
private int id;
private String name;
static Student[] stu;
public Student(int i,String n){
this.id=i;
this.name=n;
}
}

Answer 1

static Student[] stu=new Student[10];

student数组没长度