Interactions between Objects

Before discussing data structures, we must know how objects work with one another and how different objects pass messages between themselves. We’ll also try to insert data into a linked list manually. This is a list of elements connected with a link.

We’ll use four easy-to-understand sample Dart programs to see how one object works with other objects. Let’s talk about the first program. Suppose we have a group of people, and each person acquires a mobile application that helps them to enter their tasks. They can categorize the tasks, and according to the necessity, they finish their tasks.

Code for multiple classes

To accomplish this task, we need to have two classes—Person and the mobile application (AppToDo) class. We need an application object inside the Person class because one person object acquires one application object. The application object has a blueprint or class that defines what it can and can’t do.