How to remove zero in front of string and cast in number in java

Question

I have string 0000001.45 and I want to remove zero in front of the string and convert string to long. Is it possible to cast without loops. Have java some function for this.

So what have you tried already?

Oliver Charlesworth
– Oliver Charlesworth

2011-04-26 13:02:25 +00:00
Commented Apr 26, 2011 at 13:02 — Oliver Charlesworth
– Oliver Charlesworth, Commented Apr 26, 2011 at 13:02

Joseph Ottinger · Accepted Answer · 2011-04-26 13:02:06Z

5

Well, the first thing that comes to mind:

 long result=(long)Double.parseDouble("000001.45");

The Double class can parse away the leading zeros, and the cast will convert to long.

answered Apr 26, 2011 at 13:02

Joseph Ottinger

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2 Comments

Andreas Dolk Over a year ago

... which is "1" but, hey, that was the objective ;-)

Joseph Ottinger Over a year ago

Indeed. I don't know what the goal was - if it was to normalize it to 145, well, obviously other things would be done.

greydet · Accepted Answer · 2011-04-26 13:02:19Z

0

Have a look to the Long.parseLong() or equivalent classes for all the different Number types. I think you will need to parse it has a float or double then convert it to a long type.

answered Apr 26, 2011 at 13:02

greydet

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1 Comment

Andreas Dolk Over a year ago

Crash. Boom. Bang. (the input has a small, ugly dot) - but as you didn't suggest to use that method on the input - no downvote from my side ;)

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