gustavors88/JavaPracticumNewYear

Java Practicum New Year

Happy New Year! Let's write some code.

We're going to keep it a little easier today and just practice the basics again. Here's today's TODO list:

1. Fork this project on Github
2. Clone your fork using IntelliJ
3. Create a main function
4. Print Hello World to the screen
5. Create a static function called add
   1. The function should take in two int parameters
   2. It should return the sum of the two parameters
   3. In your main function, create a variable called sum that stores an int
   4. In your main function, call add with the parameters 3 and 5, and store the output into sum
6. In MainTest, create a new test method called testAdd
   1. In testAdd, run add with 2 and 4 as inputs, and assert that the output is 6
   2. In testAdd, run add with -3 and 7 as inputs, and assert that the output is 4
7. Create a function called explode
   1. The function should take in one String as a parameter
   2. Loop through each character in the String and print it
      • (Hint) length
      • (Hint) charAt
   3. In your main function, call explode with the word "Boom"
8. Create a new class called FancyPrinter
   1. It should have an instance variable called stringArr that is a String array
   2. Create a constructor for FancyPrinter that takes in a String
      1. The constructor should split the string on spaces and store the split string into stringArr
   3. Create a method called print that takes in no parameters
      1. The method should print out each member of stringArr on its own line
   4. In your main function, create and store an instance of FancyPrinter, passing "I can code" into the constructor
   5. In your main function, call the FancyPrinter instance's print method
9. Create a new class called ClassyPrinter
   1. ClassyPrinter should inherit from FancyPrinter
   2. Override the print function
      1. The print function should print the contents of stringArr in reverse order
   3. In your main function, create and store an instance of ClassyPrinter, passing "I'm a pro" into the constructor
   4. In your main function, call the ClassyPrinter instance's print method
   5. Create another print method that takes in a boolean
      1. If the parameter is true, call the super class's print method
      2. If the parameter is false, call this class's print method that takes in no parameters
   6. In your main function, call print from your ClassyPrinter instance with true as an input
10. Pat yourself on the back. Good job.