This video tutorial explains the concept of constructors in Java, including their purpose, how they are used to initialize class variables, and the difference between default and explicit constructors. It also covers constructor overloading with examples, demonstrating how multiple constructors can be used in a class. The tutorial uses a practical example of a 'Road Tool' class to illustrate these concepts, showing how to calculate tolls based on vehicle type and tire count.

What is the role of the constructor in the lifecycle of an object?

In what scenarios would you use a no-argument constructor?

What are the conditions under which a constructor can be called?

How does Java handle object creation when no constructor is defined?