diff options
| -rw-r--r-- | groovy.html.markdown | 42 |
1 files changed, 35 insertions, 7 deletions
diff --git a/groovy.html.markdown b/groovy.html.markdown index 1a635e59..8fb1b346 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: @@ -51,28 +51,56 @@ println x /* Collections and maps */ + //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' + +/*** 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']) -//Sort a list +/*** 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') |