Consider below codes of 2 java files:
1. //Flyable.java
2. package com.sampleproject.oca;
3.
4. public interface Flyable {
5. static int horizontalDegree() { //Line n1
6. return 20;
7. }
8.
9. default void fly() {
10. System.out.println("Flying at " + horizontalDegree() + " degrees."); //Line n2
11. }
12.
13. void land();
14. }
1. //Aeroplane.java
2. package com.sampleproject.oca;
3.
4. public class Aeroplane implements Flyable {
5. public void land() {
6. System.out.println("Landing at " + -Flyable.horizontalDegree() + " degrees."); //Line n3
7. }
8.
9. public static void main(String[] args) {
10. new Aeroplane().fly();
11. new Aeroplane().land();
12. }
13. }
What will be the result of compiling and executing Aeroplane class?
Below is the code of Test.java file:
1. package com.udayan.oca;
2.
3. import java.util.ArrayList;
4. import java.util.List;
5.
6. public class Test {
7. public static void main(String [] args) {
8. List
9.
10. list.add(27);
11. list.add(27);
12.
13. list.add(new Integer(27));
14. list.add(new Integer(27));
15.
16. System.out.println(list.get(0) == list.get(1));
17. System.out.println(list.get(2) == list.get(3));
18. }
19. }
What will be the result of compiling and executing Test class?
Consider below code:
1. //Test.java
2. package com.udayan.oca;
3.
4. import java.util.ArrayList;
5. import java.util.Iterator;
6. import java.util.List;
7. import java.util.function.Predicate;
8.
9. class Employee {
10. private String name;
11. private int age;
12. private double salary;
13.
14. public Employee(String name, int age, double salary) {
15. this.name = name;
16. this.age = age;
17. this.salary = salary;
18. }
19.
20. public String getName() {
21. return name;
22. }
23.
24. public int getAge() {
25. return age;
26. }
27.
28. public double getSalary() {
29. return salary;
30. }
31.
32. public String toString() {
33. return name;
34. }
35. }
36.
37. public class Test {
38. public static void main(String [] args) {
39. List
40. list.add(new Employee("James", 25, 15000));
41. list.add(new Employee("Lucy", 23, 12000));
42. list.add(new Employee("Bill", 27, 10000));
43. list.add(new Employee("Jack", 19, 5000));
44. list.add(new Employee("Liya", 20, 8000));
45.
46. process(list, /*INSERT*/);
47.
48. System.out.println(list);
49. }
50.
51. private static void process(List
52. Iterator
53. while(iterator.hasNext()) {
54. if(predicate.test(iterator.next()))
55. iterator.remove();
56. }
57. }
58. }
Which of the following lambda expressions, if used to replace /*INSERT*/, prints [Jack, Liya] on to the console?
Select 2 options.
Range of short data type is from -32768 to 32767
Which of the following code segments, written inside main method will compile successfully?
Select 3 options.
Given the code fragment:
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