Practice these Interfaces under Java Programming walk-in interview Questions/ examination questions with best tricks and short cuts with solution. Student (candidate) who want to crack the walk in interview, competitive exams and want to find short cuts and tricks to solve questions on Interfaces for following purpose.
– Anyone who is wishing to increase their perfect knowledge of Interfaces of Java Programming.
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– All Experienced, Freshers and Students.
Here is list of Questions and Answers covering all key area of Interfaces topic of Java Programming:
Answer: Option A
Access specifier of interface is either public or no specifier. When no access specifier is used then default access specifier is used due to which interface is available only to other members of the package in which it is declared, when declared public it can be used by any code
Answer: Option D
(3), (6). Both are legal class declarations. (1) is wrong because a class cannot be abstract and final "there would be no way to use such a class". (2) is wrong because interfaces and classes cannot be marked as static. (4) and (5) are wrong because classes and interfaces cannot be marked as protected.
Answer: Option A
The options B, C and D are incorrect options as in Java we can declare an abstract class comprising of abstract and non-abstract methods that will not lead to any compilation error. Therefore, A is the correct answer implying that the 't' instance of Test class invokes the display method, which is implemented in the Test class. The display method invokes myName() method declared int the TestAbstract class and prints the name.