Cerc.java

class Cerc {

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

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

    // metoda statica
    static int nrObiecte() {
        return count;
    }

}