Below is the code of Test.java file:
1. package com.udayan.ocp;
2.
3. class Outer {
4. static class Inner {
5. static void greetings(String s) {
6. System.out.println(s);
7. }
8. }
9. }
10.
11. public class Test {
12. public static void main(String[] args) {
13. /*INSERT*/
14. }
15. }
Which of the following 2 options can replace /*INSERT*/ such that there on executing class Test, output is: HELLO!?
Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. import java.util.Arrays;
4. import java.util.Comparator;
5. import java.util.List;
6.
7. class Person {
8. private String firstName;
9. private String lastName;
10.
11. public Person(String firstName, String lastName) {
12. this.firstName = firstName;
13. this.lastName = lastName;
14. }
15.
16. public String getFirstName() {
17. return firstName;
18. }
19.
20. public String getLastName() {
21. return lastName;
22. }
23.
24. public String toString() {
25. return "{" + firstName + ", " + lastName + "}";
26. }
27. }
28.
29. public class Test {
30. public static void main(String[] args) {
31. List
32. new Person("Tom", "Riddle"),
33. new Person("Tom", "Hanks"),
34. new Person("Yusuf", "Pathan"));
35. list.stream().sorted(Comparator.comparing(Person::getFirstName).reversed()
36. .thenComparing(Person::getLastName)).forEach(System.out::println);
37. }
38. }
What will be the result of compiling and executing Test class?
Given:
Given code of Test.java file:
package com.udayan.ocp;
import java.util.concurrent.*;
public class Test {
public static void main(String[] args) throws InterruptedException, ExecutionException {
ExecutorService es = Executors.newSingleThreadExecutor();
Future
System.out.println(f.get());
es.shutdown();
}
}
What will be the result of compiling and executing Test class?
Consider the code of Test.java file:
1. package com.udayan.ocp;
2.
3. class Player {
4. String name;
5. int age;
6.
7. Player() {
8. this.name = "Yuvraj";
9. this.age = 36;
10. }
11.
12. public String toString() {
13. return name + ", " + age;
14. }
15.
16. public Class getClass() {
17. return super.getClass();
18. }
19. }
20.
21. public class Test {
22. public static void main(String[] args) {
23. System.out.println(new Player());
24. }
25. }
What will be the result of compiling and executing Test class?
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