Java OCA OCP Practice Question 1227

Question

Which of the following is not a true statement?

  • A. The first line of every constructor is a call to the parent constructor via the super() command.
  • B. A class does not have to have a constructor explicitly defined.
  • C. A constructor may pass arguments to the parent constructor.
  • D. A final instance variable whose value is not set when they are declared or in an initialization block should be set by the constructor. 


A.

Note

Option A is the correct answer because the first line of a constructor could be this() or super(), making it an untrue statement.

Option B is a true statement because the compiler will insert the default no-argument constructor if one is not defined.

Option C is also a true statement, since zero or more arguments may be passed to the parent constructor, if the parent class defines such constructors.

Option D is also true. The value of a final instance variable should be set when it is declared, in an initialization block, or in a constructor.




PreviousNext

Related