Java-For-Beginners

A list of tasks in Java to learn the core concepts

Designed For Eclipse Java IDE

As Of Task 7, I have started to use IntelliJ IDEA to continue this project

Task 1 - Hello World

• Print "Hello World" to the console

Task 2 - Simple Mathematical operations

• Add two numbers
• Subtract two numbers
• Add two variables together
• Take away two variables
• Multiply two variables
• Divide two variables
• Modulus two variables

Task 3 - Methods, If Else Statements And Unit Testing

• Concatenate two strings with a space in between
• Create a method with if else
• Use JUnit4 Testing to test the method

Task 4 - Default and None-Default Constructors In Objects

• Create a none-default constructor
• Concatenate a String and Integer

Task 5 - Loops and Arrays

• Create a for loop
• Create a while loop
• Create a Array of Integers size 5
• Loop through the Array and return the values as a single string

Task 6 - ArrayLists and HashMaps

• Create a ArrayList of Integers and return 9
• Create a HashMap of Name String and Identifier Integer and return the name "Bob"

Task 7 - Objects

• Create a Object of a Car with a brand, modelYear and mileage
• Add multiple objects to a ArrayList
• Create Getters to access values in the objects

Task 8 - Interfaces and Polymorphism

• Set up an Interface
• Create an interface method
• Create Objects
• Create getters

Task 9 - ENUM's

• Create an ENUM
• Write code to classify an animal
• Write code to describe an animal