Is there any way sorting an arraylist of objects in java without using Comparator or comparable?
<p>Is there any way sorting an arraylist of objects in java without using Comparator or comparable ,I have Student class as shown below i need to Sort the Students Objects based on their Age., Is it possible to Sort ? without using implementing Comparator  or Comparable in class</p>

<pre><code>//Class of Students
//comparable or comparator Not implemented

 public class Student  {
        private String studentname;
        private int rollno;
        private int studentage;

        public Student(int rollno, String studentname, int studentage) {
             this.rollno = rollno;
             this.studentname = studentname;
             this.studentage = studentage;
        }

        public String getStudentname() {
             return studentname;
        }
        public void setStudentname(String studentname) {
        this.studentname = studentname;
        }
        public int getRollno() {
        return rollno;
        }
        public void setRollno(int rollno) {
        this.rollno = rollno;
        }
        public int getStudentage() {
        return studentage;
        }
        public void setStudentage(int studentage) {
        this.studentage = studentage;
        }   
    }


    import java.util.*;
    public class ArrayListSorting  {

         public static void main(String args[]){

         //Array of Student Objects
           ArrayList&lt;Student&gt; arraylist = new ArrayList&lt;Student&gt;();
           arraylist.add(new Student(223, "Chaitanya", 26));
           arraylist.add(new Student(245, "Rahul", 24));
           arraylist.add(new Student(209, "Ajeet", 32));

           Collections.sort(arraylist);

           for(Student str: arraylist){
                System.out.println(str.getStudentage());
           }
         }
    }
</code></pre>