Android How to Program, 3/e

... System period out period print f left parenthesis double quote percent sign s percent sign s colon back slash n back slash n percent sign s back slash n back slash n double quote comma. Line 20, indented 3 times. double quote Call Commission Employee's to String with superclass reference double quote comma. Line 21, indented 3 times. double quote to superclass object double quote comma commission Employee period to String left parenthesis right parenthesis right parenthesis semicolon. The word commission Employee period to String left parenthesis right parenthesis in line 21 are highlighted. Line 22. blank. Line 23, indented twice. forward slash forward slash invoke to String on subclass object using subclass variable. Line 24, indented twice