question: protected int indexOfDecimalPoint ( String s ) { int i = s . lastIndexOf ( '.' ) ; if ( i < 0 ) i = s . lastIndexOf ( 'e' ) ; if ( i < 0 ) i = s . lastIndexOf ( 'E' ) ; if ( i < 0 ) i = s . length ( ) ; return i ; }
target:  Returns the index of the decimal point.