Sort employee object based on name

Problem statement: Sort employee object based on name !

1. import java.util.ArrayList;
2. import java.util.Collections;
3. import java.util.Comparator;
4. import java.util.List;
5. 
   
6. class Employee {
7. Integer id;
8. String name;
9. 
   
10. Employee(int id, String name) {
11. this.id = id;
12. this.name = name;
13. }
14. 
    
15. public String toString() {
16. return "id: " + id + " -name: " + name;
17. }
18. }
19. 
    
20. class SortByEmpName implements Comparator<Employee> {
21. public int compare(Employee e1, Employee e2) {
22. return e1.name.compareTo(e2.name);
23. }
24. }
25. 
    
26. public class SortEmployee {
27. 
    
28. public static void main(String[] args) {
29. List<Employee> lists = new ArrayList<Employee>();
30. lists.add(new Employee(23, "ishaan"));
31. lists.add(new Employee(34, "raju"));
32. lists.add(new Employee(2, "zebra"));
33. lists.add(new Employee(43, "ch"));
34. 
    
35. Collections.sort(lists, new SortByEmpName());
36. for (Object o : lists) {
37. 
    
38. System.out.println(o);
39. }
40. }
41. }

Output:

id: 43 -name: ch

id: 23 -name: ishaan

id: 34 -name: raju

id: 2 -name: zebra