Java Object Sort Example

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import java.util.*;

class StudentDetails  {
    private String studentname;
    private int rollno;
    private int studentage;

    public StudentDetails(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;
    }	
}

public class JavaObjectSortExample {
	
	public static void main(String args[]){
		   ArrayList<StudentDetails> arraylist = new ArrayList<StudentDetails>();
		   arraylist.add(new StudentDetails(223, "Edvin", 26));
		   arraylist.add(new StudentDetails(245, "Amal", 24));
		   arraylist.add(new StudentDetails(209, "Ajith", 32));

		   Collections.sort(arraylist);

		   for(StudentDetails str: arraylist){
				System.out.println(str);
		   }
	     }
}
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