* Revert "remove dead link from free-programming-books-tr.md (#3024)"
This reverts commit 0f07297a40.
* Revert "Added Git and Github course (#3023)"
This reverts commit 3e9e1ded62.
* Revert "Added resources (#3022)"
This reverts commit 500db345f5.
* Revert "issue #3011 Java, Java, Java Object-Oriented Problem Solving by R. Morelli and R.Walde (#3021)"
This reverts commit 2798268070.
* remove space, readd javajavajava
* [Introduction to Programming in Java](http://introcs.cs.princeton.edu/java/home/) - Robert Sedgewick and Kevin Wayne
* [Introduction to Programming in Java](http://introcs.cs.princeton.edu/java/home/) - Robert Sedgewick and Kevin Wayne
* [Introduction to Programming Using Java](http://math.hws.edu/javanotes/) - David J. Eck
* [Introduction to Programming Using Java](http://math.hws.edu/javanotes/) - David J. Eck
* [Java Application Development on Linux (2005)](https://ptgmedia.pearsoncmg.com/images/013143697X/downloads/013143697X_book.pdf) - Carl Albing and Michael Schwarz (PDF)
* [Java Application Development on Linux (2005)](https://ptgmedia.pearsoncmg.com/images/013143697X/downloads/013143697X_book.pdf) - Carl Albing and Michael Schwarz (PDF)
* [Java, Java, Java Object-Oriented Problem Solving] (https://archive.org/details/JavaJavaJavaObject-orientedProblemSolving/page/n0) - R. Morelli and R.Walde
* [Java, Java, Java Object-Oriented Problem Solving](https://archive.org/details/JavaJavaJavaObject-orientedProblemSolving/page/n0) - R. Morelli and R.Walde
* [Java Language and Virtual Machine Specifications](https://docs.oracle.com/javase/specs/) - James Gosling, et al
* [Java Language and Virtual Machine Specifications](https://docs.oracle.com/javase/specs/) - James Gosling, et al
* [Java Notes for Professionals](http://books.goalkicker.com/JavaBook/) - Compiled from StackOverflow documentation (3.x)
* [Java Notes for Professionals](http://books.goalkicker.com/JavaBook/) - Compiled from StackOverflow documentation (3.x)
* [Java Programming for Kids](https://yfain.github.io/Java4Kids/) - Yakov Fain
* [Java Programming for Kids](https://yfain.github.io/Java4Kids/) - Yakov Fain