Android How to Program, 3/e

... times. catch left parenthesis Number Format Exception e right parenthesis left brace forward slash forward slash if s is empty or non hyphen numeric. Line 101, indented 4 times. amount Text View period set Text left parenthesis double quote double quote right parenthesis semicolon. Line 102, indented 4 times. bill Amount equals 0 period 0 semicolon. Line 103, indented 3 times. right brace. Line 104. Blank. Line 105, indented 3 times. calculate left parenthesis right parenthesis semicolon forward slash forward slash update the tip and total Text Views. Line 106, indented twice. right brace. Line 107. Blank. Line 108, indented twice. at sign Override. Line 109, indented twice. public void after Text Changed left parenthesis Editable s right pa