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What is the head.nodeText? What package and classes is that in? Does its API doc have methods that do what you want to do?

Can you post complete code that compiles, executes and shows the...

Please post the code you are having problems with.

What have you tried?

We can try to help you. Post the code you are working on and explain what the problem with it is.
Post some samples of what the program does now to show the problem you are having with it.