Overview When using variables in code there are 2 different ways the data can be used. When you pass a variable to a function it is either a pass by reference or a pass by value. Pass By Reference Pass by reference is when the memory address is passed to the function. This means…

Overview The main use of the Transfer Object Pattern is to pass data with multiple attributes at once. It is made up of 3 parts: Transfer Object — Simple Plain Old Java Object(POJO) which just has getters and setters Business Object — Contains the logic that manipulates the transfer object. Client…

Overview Inheritance is one of the four pillars of Object Oriented Programming(OOP). Inheritance allows classes to inherit all methods and properties from another class. The parent class is the class that is being inherited from also known as the base class. …

Overview Arrow functions are similar to Java and Pythons lambda function. Arrow functions can be used instead of Javascript traditional function definition. Arrow functions are more compact but there are some limitations: No bindings to this or super so it should not be used inside object if they are to be…

Lambda is a short block of code that is a function do not have a name — Overview Lambda was added to Java in version 8. Similar to Python lambda is a short block of code that is a function do not have a name. Like functions they can take in arguments and returns a value. Unlike Pythons lambda Java has its own way of using lambda. …

Overview Lambda is a single line function with no name that can have multiple arguments but only one expression. This is useful for writing functions that will only be run once. Implementation Normal Implementation def add(x, y): return x + y Lambda Implementation lambda a, b : a +b As you can see in order to…

Overview Normally we use numbers from 0–9 which a base 10 system called decimal. Binary is a number system using base 2 system. This means it just uses 2 numbers 0 and 1. Computers use binary to store data and each bit is represented by a 1 or 0. Each bit…

Overview As the name suggests MVC design patterns involves 3 parts: Model — The object that contains the data. It should contain no logic to display data. View — Presents the data to the user. …

Overview The main idea for the facade design is hiding the complexities of the application. The user would use an interface/facade instead to access any methods. Implementation Interface // Animal.java public interface Animal { void species(); } Interface for concrete class. Class Implementation // Dog.java public class Dog implements Animal { @Override…