java构造方法重载

public class StudentOverLoad{
  int no;
  String name;
  StudentOverLoad(int N_no){
  no=N_no;
  }
  StudentOverLoad(int N_no,String N_name){
  no=N_no;
  name=N_name;
  }
  public static void main(String []args){
  StudentOverLoad p1=new StudentOverLoad(1);
  StudentOverLoad p2=new StudentOverLoad(1,"zhangsan");
  System.out.println("no="+p1.no);
  System.out.println("no="+p2.no+"name="+p2.name);
  }
}