Which is/are correct?I. When we failed to provide a constructor to a class, a default constructor is created.II. The default constructor has only the statement “this()”.III. If we created a constructor, then the default constructor will be vanished.*Only I.Only I and IIIAllOnly II and III.Only II.
Question
Which is/are correct?I. When we failed to provide a constructor to a class, a default constructor is created.II. The default constructor has only the statement “this()”.III. If we created a constructor, then the default constructor will be vanished.*Only I.Only I and IIIAllOnly II and III.Only II.
Solution
The correct answer is "Only I and III".
Explanation:
I. This statement is correct. In Java, if we do not provide a constructor for a class, the Java compiler creates a default constructor for that class.
II. This statement is incorrect. The default constructor does not contain the statement "this()". Instead, it is an empty constructor.
III. This statement is correct. If we create a constructor in a class, the Java compiler does not create a default constructor.
Similar Questions
Which of the following statements are true? Please select all that apply.Group of answer choicesA default constructor is provided automatically if no constructors are explicitly defined in the class.At least one constructor must always be defined explicitly.Every class has a default constructor.The default constructor is a no-argument constructor.
Which of the following statements about constructors is/are correct?Options: Pick one correct answer from belowThe constructor name should be the same as the class name.The default constructor invokes super() and sets all instance variables to a default value such as 0, null.If we do not define a constructor for a class, the compiler will generate one for usIf we want to call parent class constructor, we must call it in the constructor's first line.All the above
Which of the following statements is CORRECT?A constructor can be used to set default values and limit instantiation.C# provides a copy constructor.Destructors are used with classes as well as structures.A class can have more than one destructor.
What is a default constructor?
Which constructor is called by default if a class has multiple constructors in C#?a.The constructor with the 'default' keyword.b.The constructor with the most parameters.c.The constructor that matches the provided arguments.d.The constructor with the fewest parameters.
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