re-add dead links from #2823 (#3035)

free-programming-interactive-tutorials-en.md

@@ -113,6 +113,7 @@
 ### Java
 
 * [CodingBat code practice](http://codingbat.com/java)
+* [Java at Codecademy](https://www.codecademy.com/courses/learn-java)
 * [Learn Java](http://www.learnjavaonline.org)
 * [Learneroo Java tutorial](https://www.learneroo.com/modules/11)
 
@@ -124,6 +125,7 @@
 * [ES6 Interactive Guide](http://stack.formidable.com/es6-interactive-guide/#/)
 * [Functional Programming in Javascript](https://github.com/ReactiveX/learnrx)
 * [Javascript interactive tutorial on CodeCademy](https://www.codecademy.com/learn/javascript)
+* [Javascript interactive tutorial on CoderMania](http://www.codermania.com/javascript/lesson/1a/hello-world)
 * [Javascripting](https://github.com/sethvincent/javascripting)
 * [Learn JavaScript](http://www.learn-js.org)
 * [Learn knockout.js](http://learn.knockoutjs.com)
@@ -219,6 +221,7 @@
 
 ### SQL
 
+* [SQL at Codecademy](https://www.codecademy.com/courses/learn-sql)
 * [SQLBolt](http://sqlbolt.com)