请问这个问题有点理论,但我想理解.

为什么我将null参数传递给构造函数我是否会得到NullPointerException？

这是我的榜样

@H_403_6@new AttendeeDetail("Gus Goose","1151","15-01-2012",(Integer) null,null)

这是班级：

@H_403_6@public class AttendeeDetail { private String ticketholder_name; private String user_id; private String date_of_birth; private int tickets_purchased; private ArrayList<Ticket> tickets; public AttendeeDetail(String ticketholder_name,String user_id,String date_of_birth,int tickets_purchased,ArrayList<Ticket> tickets) { this.ticketholder_name=ticketholder_name; this.user_id=user_id; this.date_of_birth=date_of_birth; this.tickets_purchased=tickets_purchased; this.tickets=tickets; } }