Android How to Program, 3/e

... System period out period print f left parenthesis double quote percent sign s back slash n percent sign s colon dollar sign percent sign comma period 2 f back slash n back slash n double quote comma. Line 27, indented 4 times. current Payable period to String left parenthesis right parenthesis comma. Line 28, indented 4 times. payment due comma current Payable period get Payment Amount left parenthesis right parenthesis right parenthesis semicolon. Line 29, indented twice. right brace forward slash forward slash end for. Line 30, indented once. right brace forward slash forward slash end main. Line 31. right brace forward slash forward slash end class Payable Interface Test. The output has 23 lines. The lines read as follows. Line 1. Invoices and