Collection Framework

Examples

Java

ArrayList<String> myArr = new ArrayList<String>();
myArr.add("one");
myArr.add("two");
System.out.println(myArr.get(0));

Vector<String> myVect = new Vector<String>();
myVect.add("one");
myVect.add("two");
System.out.println(myVect.get(0));

LinkedList<String> myLinkedList = new LinkedList<String>();
myLinkedList.add("two");
myLinkedList.addFirst("one");
Iterator<String> iter = myLinkedList.iterator();
while (iter.hasNext()) {
  System.out.println(iter.next());
}

HashMap<String, String> map = new HashMap<String, String>();
map.put("one", "uno");
map.put("two", "dos");
System.out.println(map.get("one"));