Free Oracle 1Z0-808 Exam Questions

Given:

Consider below code of Test.java file:

1. package com.sampleproject.oca;

2.  

3. class Super {

4.     public String num = "10"; //Line n1

5. }

6.  

7. class Sub extends Super {

8.     protected int num = 20; //Line n2

9. }

10.  

11. public class Test {

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

13.         Super obj = new Sub();

14.         System.out.println(obj.num += 2); //Line n3

15.     }

16. }

What will be the result of compiling and executing above code?

Given code of Thought.java file:

1. public class Thought {

2.     /*INSERT*/ {

3.         System.out.println("All is well");

4.     }

5. }

Which 3 options, if used to replace /*INSERT*/, will compile successfully and on execution will print "All is well" on to the console?

What is the signature of special main method?

Consider below code: 

1. //Test.java

2. package com.udayan.oca;

3.  

4. import java.time.LocalDate;

5.  

6. public class Test {

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

8.          LocalDate joiningDate = LocalDate.parse("2006-03-16");

9.          System.out.println(joiningDate.withDayOfYear(29));

10.      }

11. }

What will be the result of compiling and executing Test class?