Free Oracle 1Z0-808 Exam Questions

CGiven the code fragments:

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 list = new ArrayList();

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?

Which statement is true about the switch statement?

Consider below codes of 3 java files:

1. //Super.java

2. package com.sampleproject.oca;

3.  

4. public interface Super {

5.     String name = "SUPER"; //Line n1

6. }

1. //Sub.java

2. package com.sampleproject.oca;

3.  

4. public interface Sub extends Super { //Line n2

5.  

6. }

1. //Test.java

2. package com.sampleproject.oca;

3.  

4. public class Test {

5.     public static void main(String[] args) {

6.         Sub sub = null;

7.         System.out.println(sub.name); //Line n3

8.     }

9.

Which of the following statements is correct?

Given the code fragment: