leeyoh / java-threads-lab-2

Threads Lab 2

Instruction

You’re given a Pizza class that has methods for each step of cooking the pizza. Each of the methods except for the cookPizza method extends the Thread class and overrides the run method.

The cookPizza method is not giving the expected output. Your task is to fix it so that the output looks like the following:

cook base
cover base with sauce
slice tomatoes 3
slice tomatoes 2
slice tomatoes 1
put tomatoes on pizza
grate cheese on pizza
to bake...4 min
to bake...3 min
to bake...2 min
to bake...1 min
Your pizza is ready!

Starter Code

Main.java

class Main {
    public static void main(String[] args) throws InterruptedException {
        Pizza.cookPizza();
    }
}

Pizza.java

public class Pizza {
    //Fix this method
    public static void cookPizza() throws InterruptedException {

        Base base = new Base();
        Sauce sauce = new Sauce();
        Tomatoes tomatoes = new Tomatoes();
        Cheese cheese = new Cheese();
        Bake bake = new Bake();

        java.util.List<Thread> cookingSteps = new java.util.ArrayList<>();
        cookingSteps.add(base);
        cookingSteps.add(sauce);
        cookingSteps.add(tomatoes);
        cookingSteps.add(cheese);
        cookingSteps.add(bake);

        for (Thread step : cookingSteps) {
            step.start();
        }
    }

    // DO NOT change any of the methods below
    static class Base extends Thread {
        @Override
        public void run() {
            System.out.println("cook base");
        }
    }

    static class Sauce extends Thread {
        @Override
        public void run() {
            System.out.println("cover base with sauce");
        }
    }

    static class Tomatoes extends Thread {
        @Override
        public void run() {
            for (int i = 3; i >= 1; i--) {
                System.out.println("slice tomatoes " + i);
            }
            System.out.println("put tomatoes on pizza");
        }
    }

    static class Cheese extends Thread {
        @Override
        public void run() {
            System.out.println("grate cheese on pizza");
        }
    }

    static class Bake extends Thread {
        @Override
        public void run() {
            for (int i = 4; i >= 0; i--) {
                if (i == 0) {
                    System.out.println("Your pizza is ready!");
                    break;
                }
                System.out.println("to bake..." + i + " min");

            }
        }
    }
}