darrenbkl

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

darrenbkl

/**
 * IE 5.5+, Firefox, Opera, Chrome, Safari XHR object
 * 
 * @param string url
 * @param object callback
 * @param mixed data
 * @param null x
 */
function ajax(url, callback, data, x) {
	try {

darrenbkl

public interface Planet { }

public class Mercury implements Planet { }

public class Mars implements Planet { }

public class Saturn implements Planet { }

darrenbkl

Planet mars = new Mars()
Planet saturn = new Saturn();
Planet mercury = new Mercury()

Explorer explorer = new LifeExplorer();

List<Planet> planetsToBeVisited = new ArrayList<>();
planetsToBeVisited.add(mars);
planetsToBeVisited.add(saturn);
planetsToBeVisited.add(mercury);

darrenbkl

public interface Explorer {
    void visit(Mercury mercury);
    void visit(Mars mars);
    void visit(Saturn saturn);
    
    default void visit(Planet planet) {
        System.out.println("Landed on an unknown planet...");
    }
}

darrenbkl

public class LandscapeExplorer implements Explorer {
    @Override
    public void visit(Mercury mercury) {
        System.out.println("Adjusting camera to Mercury atmosphere... taking picture of Mercury");
    }

    @Override
    public void visit(Mars mars) {
        System.out.println("Adjusting camera to Mars atmosphere ... taking picture of Mars");
    }

darrenbkl

Planet{
    public void accept(Explorer explorer);
}

public class Mercury implements Planet {
    @Override
    public void accept(Explorer explorer)) {
        explorer.visit(this);
    }
}

darrenbkl

interface Planet{
    public void accept(Explorer explorer);
}

public class Mercury implements Planet {
    @Override
    public void accept(Explorer explorer)) {
        explorer.visit(this);
    }
}

darrenbkl

Planet mars = new Mars()
Planet saturn = new Saturn();
Planet mercury = new Mercury()

Explorer explorer = new LifeExplorer();

List<Planet> planetsToBeVisited = new ArrayList<>();
planetsToBeVisited.add(mars);
planetsToBeVisited.add(saturn);
planetsToBeVisited.add(mercury);

darrenbkl

public interface Planet {
    void accept(Explorer explorer);
}

public class Mercury implements Planet {
    @Override
    public void accept(Explorer explorer) {
        explorer.visit(this);
    }
}