Groovy

class Foo {
  doSomething() {
    data = ["name": "James", "location": "London"]
    for (e in data) {
      println("entry ${e.key} is ${e.value}")
    }
  }
 
  closureExample(collection) {
    collection.each { println("value ${it}") }
  }
 
  static void main(args) {
    values = [1, 2, 3, "abc"]
    foo = new Foo()
    foo.closureExample(values)
    foo.doSomething()
  }
}