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Need Help for Converting a Hex String to an Integer in Java

Sam Saha
Ranch Hand

Joined: Jan 23, 2010
Posts: 104
Hi

I am trying to convert a Hex String to Integer. But I am getting NumberFormatException when I run the code. I would appreciate if someone can help me so that I can convert the whole string into number.

My code:

Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 36499
    
  16
What is the largest hex number which will fit into an int?
Sam Saha
Ranch Hand

Joined: Jan 23, 2010
Posts: 104
"000016A100"
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 13875
    
  10

So you understand that the number 16A10000006800000000 is too large to fit in an int. You should use a long instead.


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Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 36499
    
  16
Sam Saha wrote:"000016A100"
No it isn’t. It is 0x7fffffff.
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 36499
    
  16
More details of the limits in the Java Language Specification. You have to scroll down a bit to find it.
 
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