A string is a sequence of one or more characters that may consist of letters, numbers, or symbols. In this tutorial, you’ll learn how to work with strings in Ruby. You’ll create strings, display them on the screen, store them in variables, join multiple strings together, and learn how to handle special characters such as newlines, apostrophes, and double quotes.
As instruções condicionais dão aos programadores capacidade para direcionar seus programas a tomarem algumas medidas se uma condição for verdadeira e outra ação se a condição for falsa….
Recently I bought a new desktop system and installed Windows 7 Ultimate 64-bit on it. Being a Java Developer, the first thing I did after regular setup is to download and install JDK. I was using Windows XP, Solaris or Mac OS for my development purpose till now and I was installing it for the first time on Windows 7 64-bit OS.
URL: https://www.progressiverobot.com/java-9-features-with-examples/ Java 9 is a major release and it has brought us a lot of features for developers. In this article, we will look into Java 9 features in detail. Java 10 has been released, for a complete overview of Java 10 release, go through [Java 10 Features](/community/tutorials/java-10-features). Java 9 Features  […]
URL: https://www.progressiverobot.com/java-collections-sort/ Today we will look into Java Collections sort method. While working with [Collections in java](/community/tutorials/collections-in-java-tutorial), more than often we need to sort the data. Java Collections sort() Java Collections class provides us with a very convenient method Collections.sort() to sort all [List](/community/tutorials/java-list) implementations such as [LinkedList](/community/tutorials/java-linkedlist-linkedlist-java) and [ArrayList](/community/tutorials/java-arraylist). There are two overloaded Collections.sort() […]
URL: https://www.progressiverobot.com/java-file-separator-separatorchar-pathseparator-pathseparatorchar/ java.io.File class contains four static separator variables. Here we will learn about them and when to use it. File.separator: Platform dependent default name-separator character as String. For windows, it's '\' and for unix it's '/'. File.separatorChar: Same as separator but it's char. File.pathSeparator: Platform dependent variable for path-separator. For example PATH or CLASSPATH […]
URL: https://www.progressiverobot.com/java-json-example/ Welcome to the Java JSON Example Tutorial. JSON (JavaScript Object Notation) is text-based lightweight technology for generating human readable formatted data. JSON represent object data in the form of key-value pairs. We can have nested JSON objects too and it provides an easy way to represent arrays also. Java JSON ![java json, java […]
URL: https://www.progressiverobot.com/java-qr-code-generator-zxing-example/ Today we will look into the Java QR code generator program. If you are tech and gadget savvy, then you must be aware of the QR code. You will find it everywhere these days – in blogs, websites, and even in some public places. This is very popular in mobile apps, where you […]
URL: https://www.progressiverobot.com/java-set/ — Java Set is a collection of elements (Or objects) that contains no duplicate elements. Java Set is an interface that extends Collection interface. Unlike List, Java Set is NOT an ordered collection, it's elements does NOT have a particular order. Java Set does NOT provide a control over the position where you […]
URL: https://www.progressiverobot.com/java-switch-case-string/ Today we will look into Java Switch Case String Example. Being a java programmer, I know the importance of String and how many times it's used for conditional flow. Whether you have a simple method that behaves differently for different input String or a Servlet controller class to check the incoming action and […]
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