Add links to Java PT

Author: exrlla

projects/set-up-a-gui-with-java/set-up-a-gui-with-java.mdx

@@ -57,7 +57,7 @@ In Java development, you're able to create GUIs for your programs without needin
 import javax.swing.*;
 ```
 
-If you don't already have a Java IDE, Click [here]() to set yours up! 
+If you don't already have a Java IDE, Click [here](https://www.codedex.io/java/bonus/set-up-your-java-dev-env) to set yours up! 
 
 Create a public class and add a main method to begin. 
 
@@ -145,7 +145,7 @@ Congrats! You've made your very own GUI with Java's Swing GUI Toolkit. This is j
 ### More Resources 
 Be sure to check out 
 - [The Swing API Documentation](https://docs.oracle.com/javase/7/docs/api/javax/swing/package-summary.html) to see other methods and objects you can create for your GUI
-- [Setting up your local Java Development Environment]()
+- [Setting up your local Java Development Environment](https://www.codedex.io/java/bonus/set-up-your-java-dev-env)
 
 Note that Swing is the default, built-in GUI Toolkit. Other toolkits like [JavaFX](https://openjfx.io/openjfx-docs/#install-javafx) exist with more functionality with their own SDK, or download package.