What are the 4 Types of Constructors?
Constructors are special methods that are used to initialize objects in a class. They are used to create objects and assign values to the data members of the class. Constructors are called when an object of a class is created. There are four types of constructors: default, parameterized, copy, and static constructors.

Default Constructor
A default constructor is a constructor that takes no parameters. It is used to create an object with the default values. The default constructor is automatically generated by the compiler if no other constructor is specified. It is used to initialize the data members of the class with default values.

Parameterized Constructor
A parameterized constructor is a constructor that takes parameters. It is used to create an object with the specified values. The parameterized constructor is used to initialize the data members of the class with the specified values.

Copy Constructor
A copy constructor is a constructor that takes an object of the same class as a parameter. It is used to create a copy of the object. The copy constructor is used to initialize the data members of the class with the values of the object passed as a parameter.

Static Constructor
A static constructor is a constructor that is declared with the static keyword. It is used to initialize the static data members of the class. The static constructor is called only once when the class is loaded into memory.

Private Constructor
A private constructor is a constructor that is declared with the private access modifier. It is used to prevent the class from being instantiated. The private constructor is used to prevent the class from being instantiated outside of the class.

Conclusion
Constructors are special methods that are used to initialize objects in a class. There are four types of constructors: default, parameterized, copy, and static constructors. The default constructor is used to initialize the data members of the class with default values. The parameterized constructor is used to initialize the data members of the class with the specified values. The copy constructor is used to initialize the data members of the class with the values of the object passed as a parameter. The static constructor is used to initialize the static data members of the class. The private constructor is used to prevent the class from being instantiated outside of the class.