diff --git a/demo/java/src/app/Visualizer.java b/demo/java/src/app/Visualizer.java
new file mode 100644
index 0000000..5723d28
--- /dev/null
+++ b/demo/java/src/app/Visualizer.java
@@ -0,0 +1,217 @@
+package app;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+
+class Node {
+	int data;
+	Node next = null;
+	Node prev = null;
+
+	public Node(int a) {
+		data = a;
+	}
+}
+
+class TreeNode {
+	int data;
+	TreeNode left, right;
+
+	public TreeNode(int item) {
+		data = item;
+		left = right = null;
+	}
+}
+
+public class Visualizer {
+	/**
+	 * For a singly linked list, doubly linked list and circular linked list, pass
+	 * the node to the method node.
+	 * 
+	 * @param node  A node pointiong to the head of the list
+	 * @param nodes Additional Nodes pointion to an element in the list in case you
+	 *              want to monitor other variables.
+	 * @return It returns a string in JSON Format
+	 */
+	public static String node(Node node, Node... nodes) {
+		return node(new String("head"), node, nodes);
+	}
+
+	/**
+	 * 
+	 * For a singly linked list, doubly linked list and circular linked list, pass
+	 * the node to the method node.
+	 * 
+	 * @param S     A string which contains the name for the head pointer in a
+	 *              string.
+	 * @param node  A node pointiong to the head of the list.
+	 * @param nodes Additional Nodes pointion to an element in the list in case you
+	 *              want to monitor other variables.
+	 * @return It returns a string in JSON Format
+	 */
+	public static String node(String S, Node node, Node... nodes) {
+		String jsonString = new String("{ \"kind\": { \"graph\": true }, \"nodes\": ");
+
+		LinkedList<HashMap<String, String>> nodeList = new LinkedList<HashMap<String, String>>();
+		LinkedList<HashMap<String, String>> edgeList = new LinkedList<HashMap<String, String>>();
+		HashMap<String, String> nodeMap;
+		HashMap<String, String> edgeMap;
+
+		nodeMap = new HashMap<String, String>();
+		nodeMap.put("\"id\"", "\"" + S + "\"");
+		nodeMap.put("\"label\"", "\"" + S + "\"");
+		nodeMap.put("\"color\"", "\"orange\"");
+		nodeList.add(nodeMap);
+
+		if (node != null) {
+			edgeMap = new HashMap<String, String>();
+			edgeMap.put("\"from\"", "\"" + S + "\"");
+			edgeMap.put("\"to\"", "\"" + node + "\"");
+			edgeList.add(edgeMap);
+		}
+		try {
+			Node temp = node;
+			do {
+				nodeMap = new HashMap<String, String>();
+				nodeMap.put("\"id\"", "\"" + temp + "\"");
+				nodeMap.put("\"label\"", "\"" + temp.data + "\"");
+				nodeMap.put("\"color\"", "\"dodgerblue\"");
+				nodeList.add(nodeMap);
+
+				edgeMap = new HashMap<String, String>();
+				edgeMap.put("\"from\"", "\"" + temp + "\"");
+				edgeMap.put("\"to\"", "\"" + temp.next + "\"");
+				edgeMap.put("\"label\"", "\"next\"");
+				edgeList.add(edgeMap);
+
+				// Remove for singly linked list
+				{
+					edgeMap = new HashMap<String, String>();
+					edgeMap.put("\"from\"", "\"" + temp + "\"");
+					edgeMap.put("\"to\"", "\"" + temp.prev + "\"");
+					edgeMap.put("\"label\"", "\"prev\"");
+					edgeMap.put("\"color\"", "\"lightgreen\"");
+					edgeList.add(edgeMap);
+				}
+
+				temp = temp.next;
+			} while (temp != null && temp != node);
+
+		} catch (Exception e) {
+		}
+
+		for (int i = 0; i < nodes.length; i++) {
+			try {
+				nodeMap = new HashMap<String, String>();
+				nodeMap.put("\"id\"", "\"label-" + i + "\"");
+				nodeMap.put("\"label\"", "\"Argument - " + i + "\"");
+				nodeMap.put("\"color\"", "\"orange\"");
+				nodeList.add(nodeMap);
+
+				edgeMap = new HashMap<String, String>();
+				edgeMap.put("\"from\"", "\"label-" + i + "\"");
+				edgeMap.put("\"to\"", "\"" + nodes[i] + "\"");
+				edgeList.add(edgeMap);
+			} catch (Exception e) {
+			}
+		}
+		jsonString += nodeList.toString() + ", \"edges\": ";
+		jsonString += edgeList + " }";
+		jsonString = jsonString.replaceAll("[=]", ":");
+		return jsonString;
+
+	}
+
+	private static void inorder(TreeNode node, LinkedList<HashMap<String, String>> nodeList,
+			LinkedList<HashMap<String, String>> edgeList) {
+		if (node != null) {
+			HashMap<String, String> nodeMap;
+			HashMap<String, String> edgeMap;
+			nodeMap = new HashMap<String, String>();
+			nodeMap.put("\"id\"", "\"" + node + "\"");
+			nodeMap.put("\"label\"", "\"" + node.data + "\"");
+			nodeMap.put("\"color\"", "\"dodgerblue\"");
+			nodeList.add(nodeMap);
+
+			edgeMap = new HashMap<String, String>();
+			edgeMap.put("\"from\"", "\"" + node + "\"");
+			edgeMap.put("\"to\"", "\"" + node.left + "\"");
+			edgeMap.put("\"label\"", "\"left\"");
+			edgeList.add(edgeMap);
+
+			edgeMap = new HashMap<String, String>();
+			edgeMap.put("\"from\"", "\"" + node + "\"");
+			edgeMap.put("\"to\"", "\"" + node.right + "\"");
+			edgeMap.put("\"label\"", "\"right\"");
+			edgeList.add(edgeMap);
+			inorder(node.left, nodeList, edgeList);
+			inorder(node.right, nodeList, edgeList);
+		}
+	}
+
+	/**
+	 * For a binaary tree, pass the roots as the node.
+	 * 
+	 * @param node  The node pointing to the root of the tree.
+	 * @param nodes Additional nodes in case you want to monitor other variables.
+	 * @return It returns a string in JSON Format.
+	 */
+	public static String treeNode(TreeNode node, TreeNode... nodes) {
+		return treeNode(new String("root"), node, nodes);
+	}
+
+	/**
+	 * For a binaary tree, pass the roots as the node.
+	 * 
+	 * @param S     A string which contains the name of the node pointion to the
+	 *              root of the tree.
+	 * @param node  The node pointing to the root of the tree.
+	 * @param nodes Additional nodes in case you want to monitor other variables.
+	 * @return It returns a string in JSON Format.
+	 */
+	public static String treeNode(String S, TreeNode node, TreeNode... nodes) {
+		String jsonString = new String("{ \"kind\": { \"graph\": true }, \"nodes\": ");
+
+		LinkedList<HashMap<String, String>> nodeList = new LinkedList<HashMap<String, String>>();
+		LinkedList<HashMap<String, String>> edgeList = new LinkedList<HashMap<String, String>>();
+		HashMap<String, String> nodeMap;
+		HashMap<String, String> edgeMap;
+
+		nodeMap = new HashMap<String, String>();
+		nodeMap.put("\"id\"", "\"" + S + "\"");
+		nodeMap.put("\"label\"", "\"" + S + "\"");
+		nodeMap.put("\"color\"", "\"orange\"");
+		nodeList.add(nodeMap);
+
+		if (node != null) {
+			edgeMap = new HashMap<String, String>();
+			edgeMap.put("\"from\"", "\"" + S + "\"");
+			edgeMap.put("\"to\"", "\"" + node + "\"");
+			edgeList.add(edgeMap);
+		}
+
+		for (int i = 0; i < nodes.length; i++) {
+			try {
+				nodeMap = new HashMap<String, String>();
+				nodeMap.put("\"id\"", "\"label-" + i + "\"");
+				nodeMap.put("\"label\"", "\"Argument - " + i + "\"");
+				nodeMap.put("\"color\"", "\"orange\"");
+				nodeList.add(nodeMap);
+
+				edgeMap = new HashMap<String, String>();
+				edgeMap.put("\"from\"", "\"label-" + i + "\"");
+				edgeMap.put("\"to\"", "\"" + nodes[i] + "\"");
+				edgeList.add(edgeMap);
+			} catch (Exception e) {
+			}
+		}
+
+		inorder(node, nodeList, edgeList);
+
+		jsonString += nodeList.toString() + ", \"edges\": ";
+		jsonString += edgeList + " }";
+		jsonString = jsonString.replaceAll("[=]", ":");
+		return jsonString;
+
+	}
+}