Tag: programming languages

Questions Related to programming languages

  1. a structure

  2. invalid

  3. client-independent

  4. not mandatory


Correct Option: C
  1. compiletime error at lines 1,2,3,4

  2. compiletime error at line 3

  3. compiletime error at line 1

  4. compiletime error at lines 3,4

  5. None of the above


Correct Option: D
Explanation:

To solve this question, the user needs to know about the different access modifiers in Java and their effect on the accessibility of methods.

Option A: This option is incorrect. There should be no compile-time errors in the code as all the methods in the interface are correctly defined.

Option B: This option is incorrect. The protected access modifier can be used in interface methods, so there should be no compile-time error at line 3.

Option C: This option is incorrect. The default access modifier can be used in interface methods, so there should be no compile-time error at line 1.

Option D: This option is correct. The private access modifier cannot be used in interface methods as they are implicitly abstract and intended to be implemented by other classes. Thus, there is a compile-time error at line 4. Additionally, the protected access modifier can be used in interface methods, but it may cause issues with implementation, so it is not recommended.

Option E: This option is incorrect. The correct answer is option D.

Therefore, the answer is: D. compiletime error at lines 3,4.

  1. compiletime error at lines 1,2,3,4,5

  2. compiletime error at lines 2,3,4,5

  3. compiletime error at lines 2,3,4

  4. prints 3

  5. None of the above


Correct Option: B