Core Java Quiz: Packages And Interfaces In Java
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This is a core Java quiz consisting of questions related to packages and interfaces. You can easily solve it and score 100% marks on this test if you consider yourself a hardcore programmer. Packages in Java are a group of similar types of classes, interfaces, and sub-packages. These are basically used to group the related classes. Play the below quiz if your concepts are clear in Java language. Shall we begin it now? Best of luck, buddy!
- 1.__________ Keyword is used to create Package in java.
- A.
Class
- B.
Pack
- C.
Interface
- D.
None
- 2.Which of the following package are built-in packages?
- A.
Lang
- B.
Java
- C.
Util
- D.
All of the above
- 3.A package can be renamed without renaming the directory in which the classes are stored.
- A.
True
- B.
False
- 4.Which of these can be used to fully abstract a class from its implementation?
- A.
Objects
- B.
Packages
- C.
Interfaces
- D.
None of the mentioned​​
- 5.Which inheritance is achieved using interface in Java?
- A.
Multiple inheritance
- B.
Single inheritance
- C.
Multilevel inheritance
- D.
None of the above
- 6.Methods of the interface must not be ___ in nature.
- A.
Static
- B.
Final
- C.
Native
- D.
All of the above
- 7.How many classes we are able to extend in Java?
- A.
Only one class
- B.
Two class
- C.
Three class
- D.
Four class
- 8.Which keyword is used for using interface in class?
- A.
Extend
- B.
Throw
- C.
Implements
- D.
None of the above
- 9.Which terms are included inside the package?
- A.
Classes
- B.
Method
- C.
Interfaces
- D.
All of the above
- 10.The TreeMap class is used to implement
- A.
Map interface
- B.
NavigableMap
- C.
AbstractMap Class
- D.
All of the above
Questions: 93 | Attempts: 19828 | Last updated: Mar 22, 2022
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