public class TestEmployeeArraySortByLambdas
1: //TestEmployeeArraySortByLambdas.java
3: import java.util.Arrays;
5: public class TestEmployeeArraySortByLambdas
6: {
7: public static void main(String[] args)
8: {
9: Employee[] employeeArray =
10: {
11: new Employee("Frank", 5, 28),
12: new Employee("Jorge", 1, 19),
13: new Employee("Bill", 6, 34),
14: new Employee("Michel", 3, 10),
15: new Employee("Simpson", 7, 8),
16: new Employee("Clark", 4, 16),
17: new Employee("Lee", 8, 40),
18: new Employee("Mark", 2, 30)
19: };
21: System.out.println("\nName\tID#\tAge");
22: System.out.println("===================");
23: for (Employee e : employeeArray)
24: {
25: System.out.println(e);
26: }
27: Arrays.sort
28: (
29: employeeArray, (e1, e2) -> e1.getName().compareTo(e2.getName())
30: );
31: System.out.println("\nName\tID#\tAge");
32: System.out.println("===================");
33: for (Employee e : employeeArray)
34: {
35: System.out.println(e);
36: }
38: Arrays.sort
39: (
40: employeeArray, (e1, e2) -> e1.getId() - e2.getId()
41: );
42: System.out.println("\nName\tID#\tAge");
43: System.out.println("===================");
44: for (Employee e : employeeArray)
45: {
46: System.out.println(e);
47: }
49: Arrays.sort
50: (
51: employeeArray, (e1, e2) -> e1.getAge() - e2.getAge()
52: );
53: System.out.println("\nName\tID#\tAge");
54: System.out.println("===================");
55: for (Employee e : employeeArray)
56: {
57: System.out.println(e);
58: }
59: }
60: }
61: /* Output:
63: Name ID# Age
64: ===================
65: Frank 5 28
66: Jorge 1 19
67: Bill 6 34
68: Michel 3 10
69: Simpson 7 8
70: Clark 4 16
71: Lee 8 40
72: Mark 2 30
74: Name ID# Age
75: ===================
76: Bill 6 34
77: Clark 4 16
78: Frank 5 28
79: Jorge 1 19
80: Lee 8 40
81: Mark 2 30
82: Michel 3 10
83: Simpson 7 8
85: Name ID# Age
86: ===================
87: Jorge 1 19
88: Mark 2 30
89: Michel 3 10
90: Clark 4 16
91: Frank 5 28
92: Bill 6 34
93: Simpson 7 8
94: Lee 8 40
96: Name ID# Age
97: ===================
98: Simpson 7 8
99: Michel 3 10
100: Clark 4 16
101: Jorge 1 19
102: Frank 5 28
103: Mark 2 30
104: Bill 6 34
105: Lee 8 40
106: */