Initial data commit

Task/Collections/Java/collections-5.java

@@ -0,0 +1,50 @@
+import scala.Tuple2;
+import scala.collection.concurrent.TrieMap;
+import scala.collection.immutable.HashSet;
+import scala.collection.mutable.ArrayBuffer;
+
+public class Collections {
+
+	public static void main(String[] args) {
+		ArrayBuffer<Integer> myarrlist = new ArrayBuffer<Integer>();
+		ArrayBuffer<Integer> myarrlist2 = new ArrayBuffer<Integer>(20);
+
+		myarrlist.$plus$eq(new Integer(42)); // $plus$eq is Scala += operator
+		myarrlist.$plus$eq(13); // to add an element.
+		myarrlist.$plus$eq(-1);
+
+		myarrlist2 = (ArrayBuffer<Integer>) myarrlist2.$minus(-1);
+
+		for (int i = 0; i < 10; i++)
+			myarrlist2.$plus$eq(i);
+
+		// loop through myarrlist to sum each entry
+		int sum = 0;
+		for (int i = 0; i < myarrlist2.size(); i++) {
+			sum += myarrlist2.apply(i);
+		}
+		System.out.println("List is: " + myarrlist2 + " with head: "
+				+ myarrlist2.head() + " sum is: " + sum);
+		System.out.println("Third element is: " + myarrlist2.apply$mcII$sp(2));
+
+		Tuple2<String, String> tuple = new Tuple2<String, String>("US",
+				"Washington");
+		System.out.println("Tuple2 is : " + tuple);
+
+		ArrayBuffer<Tuple2<String, String>> capList = new ArrayBuffer<Tuple2<String, String>>();
+		capList.$plus$eq(new Tuple2<String, String>("US", "Washington"));
+		capList.$plus$eq(new Tuple2<String, String>("France", "Paris"));
+		System.out.println(capList);
+
+		TrieMap<String, String> trieMap = new TrieMap<String, String>();
+		trieMap.put("US", "Washington");
+		trieMap.put("France", "Paris");
+
+		HashSet<Character> set = new HashSet<Character>();
+
+		ArrayBuffer<Tuple2<String, String>> capBuffer = new ArrayBuffer<Tuple2<String, String>>();
+		trieMap.put("US", "Washington");
+
+		System.out.println(trieMap);
+	}
+}