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package tech.bts.javaexamples;
* Basic exercises to practice variable declarations and assignments.
public class BasicsExercises {
public static void main(String[] args) {
package sample;
import java.util.*; // Allow us to use classes from java.util package (List, Map, etc.) without their full name
* Summary of the building blocks of a programming language.
* (Note: this is a class comment)
public class ProgrammingBuildingBlocks {
View google-maps-example.html
<!DOCTYPE html>
#map {
height: 400px;
width: 100%;
#searchTextField {
View jess_intro.yaml
title: "Intro to Jess and JavaScript"
author: "Ferran Maylinch"
lessonVersion: "1.0"
minAppVersion: "1.4"
- title: "Intro to Jess"
import java.util.*;
public class Example {
public static void main(String[] args) {
System.out.println("I'm an example");
View jess_lesson.yaml
title: Sample Lesson
author: Ferran Maylinch
# Minimum app version needed for this lesson
minAppVersion: "1.0"
- title: Sample Exercise
import static com.mongodb.QueryOperators.*;
public List<Coupon> findBuyersByMktc(String mktc, Date start, Date end)
final DBCursor cursor = coupons.find(obj()
.append(FIELD_MKTC, mktc)
.append(FIELD_PURCHASED_ON, obj(GTE, start).append(LT, end)));
fmaylinch / Code cheat
Last active Jun 28, 2019
Common lines of code in different languages for quick reference and comparison
View Code cheat

From callbacks to promises to observable streams

In this article I’ll explain about the relationship between callbacks, promises and observable streams (AKA reactive programming).

Some of the examples in this document are written in this jsbin for you to try.

This document was written using the wonderful Markdown editor

Callbacks - sync and async

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