How-to articles, tricks, and solutions about CONSTRUCTOR

Yes, an abstract class can have a constructor in Java.

To call one constructor from another in Java, you can use the this keyword. Here is an example:

To initialize the values of a HashSet when constructing the set, you can use one of the HashSet constructors that takes a Collection as an argument.

In Java, a default constructor is a constructor that is automatically generated by the compiler if no other constructors are defined in a class.

This error message is indicating that a class method is being called without providing the "self" parameter, which is the first parameter for all class methods and refers to the instance of the class.

A "pythonic" way to implement multiple constructors in Python is to use the @classmethod decorator.