Create a new tree non-leaf node, where the label is formed from the String passed in.
@param parent The string that will go into the parent tree label.
@param children The list of daughters of this tree. The childrenmay be a (possibly empty) List of children or null
@return The new interior tree node
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.