JavaME read an input from a textfild and display it in another textfield

JavaME read an input from a textfild and display it in another textfield

I have read a value from a text box and I wanted to display it in another
text box, how do I do it, a piece of code will be help ful.
One more thing is I want to do the same thing as above but via a button
Thankyou!