Abomination.java

import java.util.Timer;
import java.util.TimerTask;
import java.lang.reflect.Method;

public class Abomination {

    String callback;

    public static void main(String args[]) {
        new Abomination().setInterval("lol", 1000);
    }

    void setInterval(String callback, long interval) {
        this.callback = callback;
        new Timer().scheduleAtFixedRate(setInterval, 0, 1000);
    }

    public void lol() {
        System.out.println("lol");
    }

    TimerTask setInterval = new TimerTask() {
        public void run() {
            try {
                Method method = Abomination.this.getClass().getMethod(callback, new Class[]{});
                method.invoke(Abomination.this.getClass().newInstance(), new Object[]{});                
            } catch (Exception e) { e.printStackTrace(); }
        }
    };
}