class X {
    void novel() { ++ertek; }
    static void stat_novel() { ++stat_ertek; }
    
    int ertek;
    public static int stat_ertek;
}

new X();
    // szemétgyűjtés

// static
X x = new X();
x.novel();
X y = new X();
y.novel();
X.novel();      // nem jó
X.stat_novel();

++x.stat_ertek;
++y.stat_ertek;
++X.stat_ertek;

int MyClass;

JDropDownList
JButton
...

List

App1.List
com.sun.myapp.List