In Java, what is a constructor function? What is a constructor overload? What is a copy constructor?

When a new object is created, the constructor is called. Each class has a constructor function. The Java compiler creates a default constructor for this class in cases where the programmer does not provide a constructor for the class.

Overloading of constructors in Java is similar to method overloading. You can create multiple constructors for a class. Each constructor must have his or her unique argument list.

Java does not support copy constructors like those in C + + because Java does not create a default copy constructor if you are not a constructor of your own writing.

In Java, what is a constructor function? What is a constructor overload? What is a copy constructor?