Given the code fragment:
Given:
Consider below code of Test.java file:
1. package com.sampleproject.oca;
2.
3. interface Perishable1 {
4. default int maxDays() {
5. return 1;
6. }
7. }
8.
9. interface Perishable2 extends Perishable1 {
10. default int maxDays() {
11. return 2;
12. }
13. }
14.
15. class Milk implements Perishable2, Perishable1 {}
16.
17. public class Test {
18. public static void main(String[] args) {
19. Perishable1 obj = new Milk();
20. System.out.println(obj.maxDays());
21. }
22. }
Which of the following statements is correct?
Given code of Test.java file:
1. package com.sampleproject.oca;
2.
3. abstract class Animal {
4. abstract void jump() throws RuntimeException;
5. }
6.
7. class Deer extends Animal {
8. void jump() { //Line n1
9. System.out.println("DEER JUMPS");
10. }
11.
12. void jump(int i) {
13. System.out.println("DEER JUMPS TO " + i + " FEET");
14. }
15. }
16.
17. public class Test {
18. public static void main(String[] args) {
19. Animal animal = new Deer();
20. ((Deer)animal).jump(); //Line n2
21. ((Deer)animal).jump(5); //Line n3
22. }
23. }
What will be the result of compiling and executing Test class?
Consider the following class:
1. package com.udayan.oca;
2.
3. public class Employee {
4. public int passportNo; //line 2
5. }
Which of the following is the correct way to make the variable 'passportNo' read only for any other class?
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