Add Run A Hello World Program In Eclipse as a Java TIL

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1449 TILs and counting..._
+_1450 TILs and counting..._
 
 ---
 
@@ -434,6 +434,7 @@ _1449 TILs and counting..._
 ### Java
 
 - [Install Java On Mac With Brew](java/install-java-on-mac-with-brew.md)
+- [Run A Hello World Program In Eclipse](java/run-a-hello-world-program-in-eclipse.md)
 
 ### JavaScript
 

java/run-a-hello-world-program-in-eclipse.md

@@ -0,0 +1,27 @@
+# Run A Hello World Program In Eclipse
+
+First, you'll need to create a new Java Project if you don't already have one
+to work in.
+
+From there, you can add a new _Class_ to the `src` folder of that project. I'll
+call mine `Greeting.java` and the only thing it will contain is a `main`
+method.
+
+```java
+public class Greeting {
+    public static void main(String[] args) {
+    	String name = args.length > 0 ? args[0] : "World";
+
+        System.out.println("Hello, " + name + "!");
+    }
+}
+```
+
+This method tries to read a name from the arguments given to the program at
+time of execution. If one wasn't provided the ternary falls back to `"World"`
+as the default name. It then prints the greeting to stdout.
+
+To run this program, we can either select _Run_ from the _Run_ menu (which will
+result in `Hello, World!`) or we can select _Run Configurations..._ from the
+same menu and add a custom name to _Program Arguments_ under the _Arguments_
+tab.