Chapter 6 Interfaces MCQs 13 min Score: 0 Attempted: 0/13 Subscribe 1. . Which of the following is true about methods in an interface in Java? (A) Private and protected access modifiers can also be used to declare methods in interface (B) We can define a method in an interface (C) An interface can contain only abstract method. (D) NoneShow All Answers 2. . Which one is correct declaration for implementing two interfaces? Consider Interface A and B. class C wants to implement both interfaces. (A) class C implements A, implements B (B) class C implements A, B (C) class C implements A extends B (D) NoneShow All Answers 3. . Which of these access specifiers can be used for an interface? (A) Public (B) Protected (C) Private (D) Any of the aboveShow All Answers 4. . Choose a correct statement about Java Interfaces? (A) All the above (B) A Java class can implement multiple interfaces (C) An Interface can extend or inherit another Interface. (D) Interface contains only abstract methods by default.Show All Answers 5. . Which is correct option about java interface? (A) Interface is used to achieve multiple inheritance in java (B) All of the above (C) An interface can extend another interface. (D) Object of an interface cannot be created.Show All Answers 6. . False statement about Java interface (A) It is used to achieve abstraction and multiple inheritance in Java. (B) There can be only abstract methods in the interface not method body. (C) It can be instantiated, means, we can create an object of an interface. (D) All are correct.Show All Answers 7. . Java interface is used to (A) Implement behavior of multiple inheritance (B) Achieve abstraction (C) Achieve loose coupling (D) All of the aboveShow All Answers 8. . Which is true statements about an interface in Java? (A) An interface can have constructor (B) We can create object of an interface in java (C) An interface can extend another interface (D) NoneShow All Answers 9. . An interface in Java is like a 100% ____ (A) abstract class (B) public class (C) inner class (D) anonymous classShow All Answers 10. . A class inherits an interface using which keyword? (A) Extends (B) Implements (C) Inherit (D) NoneShow All Answers 11. . Which of these keywords is used to define interfaces in Java? (A) intf (B) Interface (C) interface (D) IntfShow All Answers 12. . Which of the following is the correct way of implementing an interface salary by class manager? (A) class manager extends salary{} (B) none of the mentioned (C) class manager imports salary{} (D) class manager implements salary{}Show All Answers 13. . A Java Class inherits Constants and Methods of an Interface using ____ keyword. (A) EXTENDS (B) IMPLEMENTS (C) INTERFACE (D) All the aboveShow All Answers
