 public class Test3-6
       {
         public static void main(String[] args)         
         {
             Student[] s = new Student[5];                     
             System.out.println(s);                 //sڴַ
             for(int n=0;n<s.length;n++)
                 System.out.println(s[n]);
             for(int j=0;j<s.length;j++)
             {
                 s[j] = new Student();              //Ԫ
                 s[j].stu_name = "A"+j;                
                 s[j].setStu_code(100+j);
                 s[j].setDeptCode ( 10+j);
                 s[j].printMaterial();
             }
         }
      }//end of class Main
class Student
      {
         int stu_code;                               
         String stu_name;                            
         int deptCode;                              
         Student stu1=null;                                
         public Student()                        
         {                                  
         }
         void setStuName(String name)
         {
             stu_name = name;
         }
         void setStuCode(int code)
         {
             stu_code = code;
         }
         void setDeptCode(int dCode)
         {
             deptCode = dCode;
         }
         public void printMaterial()
         {
            System.out.println(stu_name +"  "+stu_code +"  "+ deptCode);            
         }
      }
