PreOrder recursive traversal should have root node first.

Author: ayusmand

src/chapter06trees/PreOrderRecursive.java

@@ -15,8 +15,8 @@
 public class PreOrderRecursive {
 	public void PreOrder(BinaryTreeNode root){
 		if(root != null) {
+			System.out.println(root.data);		
 			PreOrder(root.getLeft());
-			System.out.println(root.data);
 			PreOrder(root.right);
 		}
 	}