Free Oracle 1Z0-850 Exam Dumps Questions & Answers

Given:
1 . public abstract class Wow {
2 . private int wow;
3 . public Wow(int wow) {
4 . this.wow = wow;
5 . }
6 . public void wow() { }
7 . private void wowza() { }
8 . }
Which is true about the class Wow?

• A.  It does NOT compile because an abstract class CANNOT have private methods.
• B.  It does NOT compile because an abstract class must have a constructor with no arguments.
• C.  It compiles without error.
• D.  It does NOT compile because an abstract class must have at least one abstract method.
• E.  It does NOT compile because an abstract class CANNOT have instance variables.

Which two are true about HTML? (Choose two.)

• A.  HTML documents CANNOT be browsed by a text editor.
• B.  HTML uses tags to structure text into headings, paragraphs, and lists.
• C.  HTML can set up hypertext links between documents.
• D.  HTML is an object-oriented programming language.

Why should package names in Java be unique?

• A.  to avoid class name conflicts if two development groups use the same package and class names
• B.  to programatically declare specific ownership of classes in the package
• C.  to provide the Internet location from which the package can be downloaded
• D.  to allow classes in the package to be accessed by classes outside of that package

Given:
6 . int time = 12;
7 . if ( time < 12 ) {
8 . System.out.println("Good morning");
9 . }
1 0. // insert code here
1 1. System.out.println("Good afternoon");
1 2. }
1 3. else if ( time >= 18 ) {
1 4. System.out.println("Good evening");
15. }
Which three, inserted independently at line 10, produce the output Good afternoon?
(Choose three.)

• A.  else if ( time > 12 && time >= 18 ) {
• B.  else if ( time < 12 || time > 18) {
• C.  else if ( time > 12 || time <= 18 ) {
• D.  else if ( time >= 12 || time < 18 ) {
• E.  if ( time >= 12 && time < 18 ) {

Which two are valid examples of interface implementation? (Choose two.)

• A.  class C implements D, E { }
• B.  class C implements D { }
• C.  class C extends D, implements E { }
• D.  class C extends D { }
• E.  class C implements D E { }
• F.  class C extends D, E { }