Free Oracle 1Z0-809 Exam Questions

Given code of Test.java file: 

1. package com.udayan.ocp;

2.  

3. import java.util.Arrays;

4. import java.util.List;

5. import java.util.function.Predicate;

6.  

7. public class Test {

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

9.         List list = Arrays.asList(-80, 100, -40, 25, 200);

10.         Predicate predicate = num -> {

11.             int ctr = 1;

12.             boolean result = num > 0;

13.             System.out.print(ctr++ + ".");

14.             return result;

15.         };

16.         

17.         list.stream().filter(predicate).findFirst();

18.     }

19. }

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

Given code of Test.java file: 

1. package com.udayan.ocp;

2.  

3. public class Test {

4.     private static void div(int i, int j) {

5.         try {

6.             System.out.println(i / j);

7.         } catch(ArithmeticException e) {

8.             throw (RuntimeException)e;

9.         }

10.     }

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

12.         try {

13.             div(5, 0);

14.         } catch(ArithmeticException e) {

15.             System.out.println("AE");

16.         } catch(RuntimeException e) {

17.             System.out.println("RE");

18.         }

19.     }

20. }

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

You want to create a singleton class by using the Singleton design pattern. Which two statements enforce the singleton nature of the design? (Choose two.)

Given: