What is the significance of the default constructor? They are used to create objects, which do not have any having specific initial value .9 Oca 2022
Read moreWhat does a default constructor do C++?
A default constructor is a constructor that either has no parameters, or if it has parameters, all the parameters have default values . If no user-defined constructor exists for a class A and one is needed, the compiler implicitly declares a default parameterless constructor A::A() .
Read moreWhat is the role of default constructor?
Q) What is the purpose of a default constructor? The default constructor is used to provide the default values to the object like 0, null, etc., depending on the type .
Read moreWhere is the default constructor in Java?
Java compiler automatically creates a default constructor (Constructor with no arguments ) in case no constructor is present in the java class.
Read moreIs a default constructor needed?
Java doesn’t require a constructor when we create a class. … The compiler automatically provides a public no-argument constructor for any class without constructors. This is called the default constructor. If we do explicitly declare a constructor of any form, then this automatic insertion by the compiler won’t occur.
Read moreDo I need default constructor in C++?
Answer: C++ Empty constructor necessity depends upon class design requirements . We know that C++ class constructor is called when we create an object of a class. If a class is not required to initialize its data member or does not contain data member, there is no need to write empty constructor explicitly.
Read moreWhat is the use of default constructor?
Q) What is the purpose of a default constructor? The default constructor is used to provide the default values to the object like 0, null, etc., depending on the type .
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