Free Oracle 1Z0-808 Exam Questions

How many String objects are there in the HEAP memory, when control is at Line 9?

1. package com.udayan.oca;

2.  

3. public class Test {

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

5.          String s1 = new String("Java"); //Line 3

6.          String s2 = "JaVa"; //Line 4

7.          String s3 = "JaVa"; //Line 5

8.          String s4 = "Java"; //Line 6

9.          String s5 = "Java"; //Line 7

10.  

11.          int i = 1; //Line 9

12.  

13.      }

14. }

Which statement best describes encapsulation?

Which of the following are Java Exception classes?

Select 3 options.

Which two statements are true? (Choose two.)

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?