/*
MethodExamples.java example code
AC Chapin

 */
package cis119.pkg11.methods;

public class MethodExamples {
    
    // prints out its arguments in order
    // the keyword static is needed because this is called by main
    // without creating an instance first
    public static void printParams(int i, double d, String s, boolean b) {
        System.out.println("First argument: " + i);
        System.out.println("Second argument: " + d);
        System.out.println("Third argument: " + s);
        System.out.println("Fourth argument: " + b);
    }
    
    // return the average of the given five ints
    public static double average(int a, int b, int c, int d, int e) {
        // creating a result in a local variable, then returning it
        double result = (a + b + c + d + e)/5.0;
        return result;
    }
    
    // return the plural by adding s
    public static String pluralize(String str) {
        // creating the result right in the return statement
        return str + "s";
    }
    
    public static boolean divByFive(int n) {
		return n % 5 == 0;
		
		// does same thing
		/*
		if(n % 5 == 0) {
			return true;
		}
		return false;
		*/ 
	}

    
    // set up a Bunny with the given name and carrot count
    public static Bunny makeBunny(String name, int count) {
        Bunny tempBunny = new Bunny();
        tempBunny.name = name;
        tempBunny.carrotCount = count;
        return tempBunny;
    }
    
    // have the cat eat the bunny, if it is hungry.
    public static void carnivoreTime(Cat predator, Bunny prey) {
        if (predator.hungry) {
            predator.eat(prey);
        } else {
            System.out.println(predator + " just plays with " + prey);
        }
    }
    
    // call the methods
    public static void main(String[] args) {
        
        // literal arguments
        printParams(7, 2.5, "hello", true);
                
        // variable arguments
        int x = 3;
        double b = 3.3;
        String str = "goodbye";
        boolean q = false;
        printParams(x, b, str, q);
        
        // putting return value in a variable, then printing
        double r = average(1, 2, 3, 4, 5);
        System.out.println("average: " + r);
        
        // printing return value directly
        System.out.println(average(10, 20, 30, 40, 50));
        
        // using return value in expression
        System.out.println("plural of cat is " + pluralize("cat"));
        
        Cat kitty = new Cat();
        kitty.name = "Kittyface";
        kitty.hungry = true;
        
        Bunny bun = new Bunny();
        bun.name = "Mr. Bun";
        carnivoreTime(kitty, bun);
        
        // first argument is Cat address without variable name
        // makeBunny returns a Bunny address
        carnivoreTime(new Cat(), makeBunny("Harvey", 17));
            // note that the null printed in this case is the
            // cat's name, since that never got set in this case.
        
        
        
    }
}