java - Why is there a need of the 2 following methods in NumberFormat? -

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i see numberformat has 2 methods similar:

1)

abstract number     parse(string source, parseposition parseposition)

returns long if possible (e.g., within range [long.min_value, long.max_value] , no decimals), otherwise double.

2)

object  parseobject(string source, parseposition pos)

parses text string produce number.

in presence of parse(s,parseindex) need of parseobject(..) needs cast desired output? aware first method throws parseexception , latter not. wondering why need of these 2 similar methods. in advance.

one of commonly heard complaints jdk why integer.parseint , similar methods cannot used validate string without involving expensive mechanism of exceptions. numberformat seems have answered complaint providing method can signal failure returning null.


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