public static void setString( DefaultMutableTreeNode node, String s)
     {
        String[] temp;
        for (int i=0; i< ((TextBlockType.TextLine)node.getUserObject()).getString().size();i++){
            ((TextBlockType.TextLine)node.getUserObject()).getString().remove(i);
        }
        String delimiter = " ";
        temp = s.split(delimiter);
        for(int i =0; i < temp.length ; i++){
            ((TextBlockType.TextLine)node.getUserObject()).getString().add(temp[i]);
        }
      
     
     }