Wellington Ricardo Pinheiro wrpinheiro

Introduction to Java

Installing tools

Install Sublime: https://www.sublimetext.com/

Install JDK:

brew tap caskroom/cask
brew install brew-cask

brew cask install java

Introduction to Javascript & Node JS

This is a small guide that aims you to learn some Node JS and, of course, Javascript! This is not a reference nor a detailed guide, it's just a start up point.

A brief introduction

In the begining there were HTML. I was funny, but not that funny, because it was...static! We were not able deal with most user interations only with HTML. Then something happened which unleashed the power of our imagination...we learned to talk! No, it's not that! Then JS appeared to make our applications more attractive! With JS we were able to break the limitations imposed by the static HTML and now we live in a world of dynamic content. Note that everything we talked is related to JS running in the browser context, something that we call client side JS.

As time gone by, people have increased their interest in JS, due to its easyness, and started thinking: wouldn't this JS able to run on the server side either? And then something happened which unleashed...yes, then Node JS came in!

somatária de 1 à n = somatoria(n)

Para n par

para n = 6 temos: somatoria(6) = 1 + 2 + 3 + 5 + 6

     2 + 5 = 7
    +-----------+

	(defn factorial
	([n] (factorial n 1))
	([n total]
	(if (= n 0)
	total
	(recur (dec n) (* n total)))))

	(defn combination-with-repetition
	"Calculates (h+v)! / (h! * v!)"
	[h v]

	public class TwoLoopsWithObjects {
	public static void main(String[] args) {
	StringBuilder sb = new StringBuilder();

	Integer i = new Integer(0);
	Integer max = new Integer(100000);

	while (i.intValue() < 100000) {
	Integer j = i;
	long start = System.nanoTime();

	import React from 'react'
	import { render } from 'react-dom'

	var ProductCategoryRow = React.createClass({
	render: function() {
	return (<tr><th colSpan="2">{this.props.category}</th></tr>);
	}
	});

	var ProductRow = React.createClass({

	import java.util.ArrayDeque;
	import java.util.Deque;

	class TopologicalSort {
	static final int NUM_VERTEXES = 7

	void applyTopologicalSortLocally(Graph g, Integer vertex, Set<Integer> visited, Deque<Integer> stack) {
	visited.add(vertex)
	g.getAdjacentVertexes(vertex).each { adjVertex ->
	if (!visited.contains(adjVertex)) {

	<!DOCTYPE html>
	<html>
	<head>
	<title>FormData, Node and Formidable Example</title>
	</head>
	<body>
	<button onClick="buttonClicked()">Click me</button>

	<script src="https://code.jquery.com/jquery-3.1.1.js"></script>
	<script type="text/javascript" charset="utf-8" async defer>

	public class Main {
	public static void main(String[] args) throws Exception {
	MinioClient minioClient = new MinioClient("http://localhost:9000", "minotestkey", "miniotestsecret");
	minioClient.makeBucket("test-bucket");
	}
	}