It is possible for a class to have no constructor . (An important distinction to draw here is that the JVM does not require all class files to have a constructor; however, any class defined in Java does have a default constructor if a constructor is not explicitly declared.
Read moreWhat happens if you don’t create a constructor for a class C++?
In C++, the compiler creates a default constructor if we don’t define our own constructor. In C++, compiler created default constructor has an empty body, i.e., it doesn’t assign default values to data members.
Read moreCan C++ class have no constructor?
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.5 Eyl 2007
Read moreIs a constructor mandatory for a class?
Users do not need to write constructors for every class . A constructor can be declared using any of the access modifiers. It is mandatory to have a constructor with the right access modifier. However, the compiler supplies a default if an access modifier is not defined in the class and a constructor is not declared.
Read moreIs it mandatory to use constructor in a class 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 moreIs it mandatory to use constructor in a class?
Users do not need to write constructors for every class. A constructor can be declared using any of the access modifiers. It is mandatory to have a constructor with the right access modifier . However, the compiler supplies a default if an access modifier is not defined in the class and a constructor is not declared.
Read moreIs it mandatory to use constructor in a class?
Users do not need to write constructors for every class. A constructor can be declared using any of the access modifiers. It is mandatory to have a constructor with the right access modifier . However, the compiler supplies a default if an access modifier is not defined in the class and a constructor is not declared.
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