Free Oracle 1Z0-808 Exam Questions

Given the code fragment:

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

1. package com.udayan.oca;

2.  

3. import java.util.ArrayList;

4. import java.util.List;

5.  

6. public class Test {

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

8.          List list = new ArrayList<>();

9.          list.add(100);

10.          list.add(200);

11.          list.add(100);

12.          list.add(200);

13.          list.remove(new Integer(100));

14.  

15.          System.out.println(list);

16.      }

17. }

Consider below code of Test.java file:

1. package com.sampleproject.oca; 

2.  

3. public class Test {

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

5.         /*INSERT*/ x = 7, y = 200;

6.         System.out.println(String.valueOf(x + y).length());

7.     }

8. }

Which of the following options, if used to replace /*INSERT*/, will compile successfully and on execution will print 3 on to the console?

Select 3 options.

Which of the following method is declared in Predicate interface?

Given the code fragment: