Which of the following statements is true about constructors?
A)Providing a constructor for a class is optional.
B)You can only provide one constructor for a class.
C)The body of the constructor must initialize all instance variables or the constructor will not successfully compile.
D)A constructor has a void return type.

Question

Quizplus · Accepted Answer

Providing a constructor for a class is optional. If a class does not have a constructor, the compiler generates a default constructor with no arguments. However, if you need to initialize the object's state in a particular way, you should provide a constructor that takes the appropriate parameters.

B, C, and D are all false statements. B is false because you can provide multiple constructors for a class as long as they have different parameter types or number of parameters. C is false because it is not necessary to initialize all instance variables in the constructor -- you can do it later in the code if necessary. D is false because a constructor does not have a return type.

Which of the Following Statements Is True About Constructors