Class for JDB tutorial article on http://weibeld.net/java/debugging-with-jdb.html

A.java

public class A {
    private int x;
    private int y;

    public A(int a, int b) {
        x = a;
        y = b;
    }

    public static void main(String[] args) {
        System.out.println("Hi, I'm main.. and I'm going to call f1");
        f1();
        f2(3, 4);
        f3(4, 5);
        f4();
        f5();
    }

    public static void f1() {
        System.out.println("I'm f1...");
        System.out.println("I'm still f1...");
        System.out.println("I'm still f1...");
    }

    public static int f2(int a, int b) {
        return a + b;
    }

    public static A f3(int a, int b) {
        A obj = new A(a, b);
        obj.reset();
        return obj;
    }

    public static void f4() {
        System.out.println("I'm f4 ");
    }

    public static void f5() {
        A a = new A(5, 6);

        synchronized(a) {
            System.out.println("I'm f5, accessing a's fields " + a.x + " " + a.y);
        }
    }

    private void reset() {
        x = 0;
        y = 0;
    }
}