Free Oracle 1Z0-808 Exam Questions

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

package com.udayan.oca;

public class Test {

     public static void main(String[] args) {

         String str = "Java Rocks!";

         System.out.println(str.length() + " : " + str.charAt(10));

     }

}

Given code of Test.java file:

1. package com.sampleproject.oca;

2.  

3. public class Test {

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

5.         try { //outer

6.             try { //inner

7.                 System.out.println(1/0);

8.             } catch(ArithmeticException e) {

9.                 System.out.println("INNER");

10.             } finally {

11.                 System.out.println("FINALLY 1");

12.             }

13.         } catch(ArithmeticException e) {

14.             System.out.println("OUTER");

15.         } finally {

16.             System.out.println("FINALLY 2");

17.         }

18.     }

19. }

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

Which two statements are true? (Choose two.)

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

package com.udayan.oca;

import java.util.ArrayList;

import java.util.List;

public class Test {

     public static void main(String[] args) {

         List list = new ArrayList<>();

         list.add(100);

         list.add(7);

         list.add(50);

         list.add(17);

         list.add(10);

         list.add(5);

         list.removeIf(a -> a % 10 == 0);

         System.out.println(list);

     }

}

Consider below codes of 2 java files:

1. //Flyable.java

2. package com.sampleproject.oca;

3.  

4. public interface Flyable {

5.     static int horizontalDegree() { //Line n1

6.         return 20;

7.     }

8.  

9.     default void fly() {

10.         System.out.println("Flying at " + horizontalDegree() + " degrees."); //Line n2

11.     }

12.  

13.     void land();

14. }

1. //Aeroplane.java

2. package com.sampleproject.oca;

3.  

4. public class Aeroplane implements Flyable {

5.     public void land() {

6.         System.out.println("Landing at " + -Flyable.horizontalDegree() + " degrees."); //Line n3

7.     }

8.  

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

10.         new Aeroplane().fly();

11.         new Aeroplane().land();

12.     }

13. }

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