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 is the use of default keyword in switch?
Definition and Usage The default keyword the default block of code in a switch statement. The default keyword specifies some code to run if there is no case match in the switch . Note: if the default keyword is used as the last statement in a switch block, it does not need a break .
Read moreWhy default keyword c++?
It’s a new C++11 feature. It means that you want to use the compiler-generated version of that function, so you don’t need to specify a body . You can also use = delete to specify that you don’t want the compiler to generate that function automatically.9 Mar 2016
Read moreWhy do we need empty constructor?
Meaning: always write an empty constructor in your entity. But Java always gives you this empty constructor when you don’t redefine it (write an other one with parameters).
Read moreCan a class have no constructor C++?
If your class has no constructors, C++ will automatically generate a public default constructor for you . This is sometimes called an implicit constructor (or implicitly generated constructor). The Date class has no constructors.
Read moreWhat is an empty 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 .10 Eki 2016
Read moreCan a constructor be empty?
The body of the constructor is defined inside the curly brackets { } after the parameter list. In the constructor example above the constructor has no operations inside the constructor body. It is said to be an “empty” constructor .
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