Java开发网 - ［请教］有没有能把String转成long的method?

Topic: ［请教］有没有能把String转成long的method?

1.［请教］有没有能把String转成long的method?	Copy to clipboard
Posted by: mitnickcbc Posted on: 2002-12-12 00:26 Integer.parseInt(String)可以把String转成int，有没有转成long的？

2.雷同啊 [Re: mitnickcbc]	Copy to clipboard
Posted by: rainman Posted on: 2002-12-12 00:40 Long.parseLong(String)

3.Re:［请教］有没有能把String转成long的method? [Re: mitnickcbc]	Copy to clipboard
Posted by: scottding Posted on: 2002-12-12 09:39 呵，来晚了。

4.Re:［请教］有没有能把String转成long的method? [Re: mitnickcbc]

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Posted by: archonLing
Posted on: 2002-12-17 14:35

if the String is a formatted Long, ex: 100,000,000,000, then you could get a DecimalFormat instance with the format first. Then use its

public Number parse(String text) or
public Number parse(String text, ParsePosition pos)

methods to get back a Number. Finally, call the longValue() to get back a long.

for example:

long ret = new DecimalFormat("#,##0").parse("100,000,000,000").longValue();

you would need to wrap the code with try..catch block to catch ParseException.

I hope that doesn't confuse you. Heehee... Smile