From 39b96dd2db1de1c8d31ef6ce1c05543e7f690659 Mon Sep 17 00:00:00 2001
From: Tim Yates <tyates@picr.man.ac.uk>
Date: Mon, 2 Sep 2013 12:53:05 +0100
Subject: Highlight code as Groovy, not cpp

---
 groovy.html.markdown | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/groovy.html.markdown b/groovy.html.markdown
index 1a635e59..e440ef00 100644
--- a/groovy.html.markdown
+++ b/groovy.html.markdown
@@ -8,7 +8,7 @@ filename: learngroovy.groovy
 
 Groovy - A dynamic language for the Java platform [Read more here.](http://groovy.codehaus.org)
 
-```cpp
+```groovy
 
 /*
   Set yourself up:
-- 
cgit v1.2.3


From 68f26804c54280ad86ce639ae428fdf3b670de8b Mon Sep 17 00:00:00 2001
From: Tim Yates <tyates@picr.man.ac.uk>
Date: Mon, 2 Sep 2013 12:57:29 +0100
Subject: Added a few more examples for List manipulation

---
 groovy.html.markdown | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/groovy.html.markdown b/groovy.html.markdown
index e440ef00..63cef76b 100644
--- a/groovy.html.markdown
+++ b/groovy.html.markdown
@@ -54,15 +54,26 @@ println x
 //Creating an empty list
 def technologies = []
 
-//Add an element to the list
-technologies << "Groovy"
+/*** Adding a elements to the list ***/
+
+// As with Java
 technologies.add("Grails")
+
+// Left shift adds, and returns the list
+technologies << "Groovy"
+
+// Add multiple elements
 technologies.addAll(["Gradle","Griffon"])
 
-//Remove an element from the list
+/*** Removing elements from the list ***/
+
+// As with Java
 technologies.remove("Griffon")
 
-//Iterate over elements of a list
+// Subtraction works also
+technologies = technologies - 'Grails'
+
+// Iterate over elements of a list
 technologies.each { println "Technology: $it"}
 technologies.eachWithIndex { it, i -> println "$i: $it"}
 
-- 
cgit v1.2.3


From 6f444bece417a18127782d909a518c91962823c9 Mon Sep 17 00:00:00 2001
From: Tim Yates <tyates@picr.man.ac.uk>
Date: Mon, 2 Sep 2013 12:59:18 +0100
Subject: Mention mutating with List.sort

---
 groovy.html.markdown | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/groovy.html.markdown b/groovy.html.markdown
index 63cef76b..135efc0f 100644
--- a/groovy.html.markdown
+++ b/groovy.html.markdown
@@ -51,6 +51,7 @@ println x
 /*
   Collections and maps
 */
+
 //Creating an empty list
 def technologies = []
 
@@ -81,9 +82,12 @@ technologies.eachWithIndex { it, i -> println "$i: $it"}
 technologies.contains('Groovy')
 technologies.containsAll(['Groovy','Grails'])
 
-//Sort a list
+// Sort a list (mutates original list)
 technologies.sort()
 
+// To sort without mutating original, you can do:
+sortedTechnologies = technologies.sort( false )
+
 //Replace all elements in the list
 Collections.replaceAll(technologies, 'Gradle', 'gradle')
 
-- 
cgit v1.2.3


From 95058aea96036fbdb4829d5245f5521541abdf0c Mon Sep 17 00:00:00 2001
From: Tim Yates <tyates@picr.man.ac.uk>
Date: Mon, 2 Sep 2013 13:02:53 +0100
Subject: Another way of checking List.contains and some headers

---
 groovy.html.markdown | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/groovy.html.markdown b/groovy.html.markdown
index 135efc0f..8fb1b346 100644
--- a/groovy.html.markdown
+++ b/groovy.html.markdown
@@ -74,20 +74,33 @@ technologies.remove("Griffon")
 // Subtraction works also
 technologies = technologies - 'Grails'
 
+/*** Iterating Lists ***/
+
 // Iterate over elements of a list
 technologies.each { println "Technology: $it"}
 technologies.eachWithIndex { it, i -> println "$i: $it"}
 
+/*** Checking List contents ***/
+
 //Evaluate if a list contains element(s) (boolean)
-technologies.contains('Groovy')
+contained = technologies.contains( 'Groovy' )
+
+// Or
+contained = 'Groovy' in technologies
+
+// Check for multiple contents
 technologies.containsAll(['Groovy','Grails'])
 
+/*** Sorting Lists ***/
+
 // Sort a list (mutates original list)
 technologies.sort()
 
 // To sort without mutating original, you can do:
 sortedTechnologies = technologies.sort( false )
 
+/*** Manipulating Lists ***/
+
 //Replace all elements in the list
 Collections.replaceAll(technologies, 'Gradle', 'gradle')
 
-- 
cgit v1.2.3