coelhinhos

public class Main
{
    public static void main(String coelhinhos[])
    {
        final int LIMIT = 150;
        Exercicios e = new Exercicios(LIMIT);

        System.out.println("Pares entre 1 e " + LIMIT);
        e.ex1();

        System.out.println("\n\nPrimos ateh " + LIMIT);
        e.ex2();

        System.out.println("\n\nFibonacci ateh "  + LIMIT);
        e.ex3();
    }
}

class Exercicios
{
    int limit = 100;

    public Exercicios(int limit)
    {
        this.limit = limit;
    }


   /* pares entre 1 e limit */
    void ex1()
    {
        for(int i = 2; i <= limit; i+=2) // hue
        {
            System.out.print(i + " ");
        }
    }

    /* primos ateh limit */
    void ex2()
    {
        for(int i = 2; i <= limit; i++)
        {
            boolean flag = false;
            for(int j = 2; j < i && !flag; j++)
            {
                if(i%j == 0)
                {
                    flag = true;
                }
            }
            if(!flag)
            {
                System.out.print(i + " ");
            }
        }
    }

    /* fibonacci ateh limit */
    void ex3()
    {
        int a = 1;
        int b = 1;
        int c = a+b;

        System.out.print(a + " " + b + " ");

        while(c <= limit)
        {
            System.out.print(c + " ");
            a = b;
            b = c;
            c = a+b;
        }

        System.out.println();
    }
}