一个有趣的问题 :对象数组?

Question

public class Class
{
  Student[] student;  public Class(Student[] student) 
  {
this.student = student;
  }
}public class Grade
{
   Class[]  classs;
   public Grade(Class[] classes)             
  {
      this.classes = classes
   }}public class School
{
  Grade[] grade;
  public School(Grade[] grade)
  {
    this.grade = grade;
  }
}

Answer 1

要通过构造函数将gradeCount,classCount传递进去.

Answer 2

//班级类
public class Class
{
Student[] student; public Class(int studentCount)  //怎么写
{
                               if(strudentCount <= 0)
                                      throw new ArgumentException();
                               student = new Student[studentCount];

}
} //年级类
public class Grade
{
Class[]  classes;
public Grade(int classCount)           //怎么写
{
                                 if(classCount <= 0) 
                                       throw new ArgumentException();
                                 classes = new Class[classCount];
} } //学校类
public class School
{
Grade[] grade;
public School(int gradeCount)        //怎么写
{
                             if(gradeCount <=0 ) 
                                throw new ArgumentException();
                             grade = new Grade[gradeCount];
} }