arrays - How to insert and display arraylist in java program? -

this output of program:

enter last name: dela cruz enter first name: juan enter course: bscs enter year: 4th year 

display array list

[0] - dela cruz | juan | bscs | 4th year  add more (y/n): if yes add more entry... 

use following code.

import java.util.arraylist; import java.util.list; import java.util.scanner;  public class io {     public static void main(string[] args) {          scanner scn = new scanner(system.in);          string continueadd = "y";         list<student> studentlist = new arraylist<>();          student student;         while ("y".equalsignorecase(continueadd)) {             student = new student();             system.out.println("enter last name:");             student.lastname = scn.nextline();             system.out.println("enter first name:");             student.firstname = scn.nextline();             system.out.println("enter course:");             student.course = scn.nextline();             system.out.println("enter year:");             student.year = scn.nextline();              studentlist.add(student);              system.out.println("add more (y/n): ");             continueadd = scn.nextline();         }         int = 0;         for(student studenttemp : studentlist){              system.out.println("["+i+"] - " + studenttemp);             i++;         }      }   }  class student {     string firstname;     string lastname;     string course;     string year;      @override     public string tostring(){         return lastname+" | "+ firstname +" | "+course+" | "+year;      }  }