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Chapter 6: Problem 17

How many default constructors may a class have?

Short Answer

Expert verified
Answer: A class can have only one default constructor.

Step by step solution

01

Definition of a Default Constructor

A default constructor is a constructor in a class that does not take any arguments. It is automatically provided by the compiler if a class does not have any constructors defined. It initializes the class's member variables with their default values.
02

Number of Default Constructors per Class

A class may only have one default constructor. If a class has multiple constructors defined, none of them are considered the default constructor. In those cases, the compiler will not provide a default constructor.

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Most popular questions from this chapter

Assume that \(r 1\) and \(r 2\) are variables that reference Rectangle objects, and the following statements are executed: r1.setLength(5.0); r2.setLength(10.0); r1.setWidth(20.0); r2.setWidth(15.0);

Assume that limo is a variable that references an instance of the class shown in Figure \(6-16 .\) Write a statement that calls setMake and passes the argument "cadillac".

What is a method's signature?

You hear someone make the following comment: "A blueprint is a design for a house. A carpenter can use the blueprint to build the house. If the carpenter wishes, he or she can build several identical houses from the same blueprint." Think of this as a metaphor for classes and objects. Does the blueprint represent a class, or does it represent an object?

What is a constructor's return type?
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