Can you explain the purpose and the working of the constructor in Java?

In Java, a constructor is a special method of a class that is called when a new object is created. Its main purpose is to initialize the object, that is, to set the initial values of fields.

Features of a constructor:

• The constructor's name matches the class name.
• It has no return type, not even void.
• There can be multiple constructors with different parameters (overloading).
• If a constructor is not explicitly declared, the compiler will create a default constructor without parameters.

Example:

public class Person {
    private String name;
    private int age;

    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
}

When creating an object new Person("Ivan", 30), the constructor that sets the name and age is called.