Cerc.java

class Cerc {

    static final double PI = 3.14;
    static int count = 0;
    int x;
    int y;
    int raza;

    // metoda constructor 1
    Cerc() {
        x = 0;
        y = 0;
        raza = 0;
    }
    // metoda constructor 2
    Cerc(int x0, int y0, int raza0) {
        x = x0;
        y = y0;
        raza = raza0;
    }

    // metoda non-statica
    public double aria() {
        return PI * raza * raza;
    }
    // metoda statica
    static int nrObiecte() {
        return count;
    }

    public static void main(String[] args) {
        Cerc c = new Cerc(2, 5, 4);
        System.out.println(c.raza);
    }

}