java - NullPointerException in array of objects -

this program ask inputs user: name of 5 students , addresses creating arrays of objects , displaying them.

package stringdisplay;  import java.util.scanner;   public class student {       string name;     string address;     student[] studentarray = new student[5];       public void setinfo() {         scanner username = new scanner(system.in);         (int = 0; < 5; i++) {              student student = new student();               system.out.print("enter name:");             student.name = username.nextline();              system.out.print("enter address:");             student.address = username.nextline();             studentarray[i] = student;           }     }       public void displayinfo() {         (int = 0; < 5; i++) {             student student = studentarray[i];             system.out.print("name:" + student.name);             system.out.print("address:" + student.address);         }       }       public static void main(string[] args) {         student info = new student();         info.setinfo();         student display = new student();         display.displayinfo();      } } 

    student info = new student();     info.setinfo();     student display = new student();     display.displayinfo(); 

read simple english of code making object "info" of student class , setting info in that....

and making new object of student class "display" there nothing in display object display because info saved in info object.

hope got problem...