View difference between Paste ID: bUqFUNHU and G94fXrsd

-['a','b', null, 'c'].each{ println "$it -> ${it?.toUpperCase()}​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​" }​​​​​
+class AlbumDemo {
   // statically typed property
   String title
 
   // dynamically typed property
   def price
 
   def printAlbum() {
     println title + ': ' + price
   }
 
   static void main(String[] args) {
     def album = new AlbumDemo(title: 'Best Of 2010', price: 20.5)
     album.printAlbum()
   }
 }