Sort employee object base on salary & location both

Problem statement: Sort employee record based on salary & location.

1. import java.util.List;
2. import java.util.Arrays;
3. import java.util.ArrayList;
4. import java.util.Collections;
5. import java.util.Comparator;
6. 
   
7. class EmployeeExe1 {
8. String name;
9. Double salary;
10. String location;
11. EmployeeExe1(String name, Double salary, String location) {
12. this.name = name;
13. this.salary = salary;
14. this.location = location;
15. }
16. public String toString() {
17. return "name: " + name + ", salary: " + salary + ", location: " + location;
18. }
19. }
20. 
    
21. class SortEmpBySalary implements Comparator<EmployeeExe1> {
22. public int compare(EmployeeExe1 e1, EmployeeExe1 e2) {
23. if (e1.salary.compareTo(e2.salary) > 0) {
24. return 1;
25. }
26. if (e1.salary.compareTo(e2.salary) < 0) {
27. return -1;
28. }
29. return 0;
30. }
31. }
32. 
    
33. class SortEmpByLocation implements Comparator<EmployeeExe1> {
34. public int compare(EmployeeExe1 e1, EmployeeExe1 e2) {
35. return e1.location.compareTo(e2.location);
36. }
37. }
38. 
    
39. class SortByTwoFields implements Comparator<EmployeeExe1> {
40. List<Comparator<EmployeeExe1>> empAll;
41. 
    
42. @SafeVarargs
43. public SortByTwoFields(Comparator<EmployeeExe1>... e2) {
44. this.empAll = Arrays.asList(e2);
45. }
46. 
    
47. @Override
48. public int compare(EmployeeExe1 o1, EmployeeExe1 o2) {
49. for (Comparator<EmployeeExe1> x : empAll) {
50. int res = x.compare(o1, o2);
51. if (res != 0) {
52. return res;
53. }
54. }
55. return 0;
56. }
57. }
58. 
    
59. public class SortEmplyeeBySalLoc {
60. public static void main(String[] args) {
61. List<EmployeeExe1> l = new ArrayList<EmployeeExe1>();
62. l.add(new EmployeeExe1("ishaan", 12000.00, "blr"));
63. l.add(new EmployeeExe1("raju", 11000.00, "hyd"));
64. l.add(new EmployeeExe1("ritesh", 9000.00, "del"));
65. l.add(new EmployeeExe1("nikash", 9000.00, "mum"));
66. 
    
67. Collections.sort(l, new SortByTwoFields(new SortEmpBySalary(), new SortEmpByLocation()));
68. for (Object o : l) {
69. System.out.println(o);
70. }
71. }
72. }

Output:

name: ritesh, salary: 9000.0, location: del

name: nikash, salary: 9000.0, location: mum

name: raju, salary: 11000.0, location: hyd

name: ishaan, salary: 12000.0, location: blr