Android How to Program, 3/e

Long description

The text field 1 refers to J text field object that has listener list that points to a memory block, in the memory allocation which is pointing to the text field handler object, the pointer is labeled as, This reference is created by the statement, text Field 1 period add Action Listener left parenthesis handler right parenthesis semicolon. The handler refers to text field handler object that has a code The code has 5 lines. The lines read as follows. Line 1. public void action Performed left parenthesis. Line 2, indented once. Action Event event right parenthesis. Line 3. left brace. Line 4, indented once. forward slash forward slash event handled here. Line 5. right brace.