Welcome! In this lesson, we will be exploring Java's constructor, a key element in object creation. Imagine creating cars on an assembly line, each painted a particular color, assigned an engine number, and further personalized, just like an object in Java. Today, we'll decipher constructors, which are essential to Java.

A constructor in Java is a specific method that initializes objects. It shares the same name as the class and doesn't return any type. If there are no user-defined constructors, Java provides a default one.

Constructors in Java adhere to some specific rules. The name of a constructor must be the same as the class name. Like a method, a constructor has a body enclosed between curly braces { }. A constructor looks like this:

In this example, Dog is a constructor, taking two parameters - a String breed and an int age. The this keyword refers to the current instance. So this.breed refers to the breed attribute of the current dog object, and similarly for age.