public class Feeder
{
    /**
     * The amount of food, in grams, currently in the bird feeder; initialized in the constructor and
     * always greater than or equal to zero */
    private int currentFood;

    public Feeder(int cf) { currentFood =cf;}

    /**
     * Simulates one day with numBirds birds or possibly a bear at the bird feeder,
     * as described in part (a)
     * Precondition: numBirds > 0 */
    public void simulateOneDay(int numBirds) { 
        /* to be implemented in part (a) */ 
           
    }


    /**
     * Returns the number of days birds or a bear found food to eat at the feeder in this simulation,
     * as described in part (b)
     * Preconditions: numBirds > 0, numDays > 0 */
    public int simulateManyDays(int numBirds, int numDays) { 
        /* to be implemented in part (b) */
       
        return -1; // remove to test your answer to part (b)
    }
    // There may be instance variables, constructors, or methods that are not shown.
    
    public String toString()
    {
        return currentFood +"g of food is left";
    }
    public static void main(String[] args)
    {
        Feeder ex1 = new Feeder(500);
        Feeder ex2 = new Feeder(1000);
        Feeder ex3 = new Feeder(100);
        ex1.simulateOneDay(12);
        ex2.simulateOneDay(22);
        ex3.simulateOneDay(5);
        System.out.println("Part (a)");
        System.out.println( " ex1.simulateOneDay(12) could result in 12 birds eating 20g of food each, leaving 260g of food");
        for(int i=1; i< 6; i++)
        {
            ex1 = new Feeder(500);     
            ex1.simulateOneDay(12);
            System.out.println("Your code returned " + ex1 );
        }
        System.out.println( " ex2.simulateOneDay(22) could result in a bear eating all the food, leaving 0g of food"); 
        System.out.println("Your code returned " + ex2 );

        System.out.println( " ex3.simulateOneDay(5) could result in 5 birds attempting to eat 30g of food each a bear eating all the food, leaving 0g of food"); 
        System.out.println("Your code returned " + ex3 );
        
        System.out.println("Part (b)");
        System.out.println( "current Food 2400, ex1.simulateOneDay(10, 4)"); 
        ex1 = new Feeder(2400);
        System.out.println("Your code returned " + ex1.simulateManyDays(20,20) + " " + ex1 );
        

    }
}