public class StaticTest {

    static int a = 0;
    int b;

    StaticTest() {
        b = 0;
    }

    public void inc() {
        ++a;
        ++b;
    }

    public void print() {
        System.out.println(a);
        System.out.println(b);
    }

    public static void main(String args[]) {
        StaticTest t1 = new StaticTest();
        StaticTest t2 = new StaticTest();

        t1.print();
        t2.print();

        t1.inc();
        t1.print();

        t2.inc();
        t2.print();
    }
}