How to create dynamic tree

Hi friend how to create in dyamic tree generat code Please send

To generate tree dynamically we can make use of "assembler design pattern". For that we have to create javascript which generates tree dynamically in a "java" file. the whole java script should be passed to web page as a single string.

java file:
String treeStr;
createTree(){
treeStr+=treeStr+DynamicItems from DB or Any+"Script related to active widgets";
}
at last "treeStr" will be passed to target page where it requires dynamic tree.