Free Oracle 1Z0-808 Exam Questions

Given:

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 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?

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

package com.udayan.oca;

public class Test {

     static String msg; //Line 2

     public static void main(String[] args) {

         String msg; //Line 4

         if(args.length > 0) {

             msg = args[0]; //Line 6

         }

         System.out.println(msg); //Line 8

     }

}

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

1. //Test.java

2. package com.udayan.oca;

3.  

4. import java.io.FileNotFoundException;

5.  

6. public class Test {

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

8.          try {

9.              System.out.println(1);

10.          } catch (NullPointerException ex) {

11.              System.out.println("ONE");

12.          } catch (FileNotFoundException ex) {

13.              System.out.println("TWO");

14.          }

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

16.      }

17. }