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Hex to integer (4 bytes)

debugcn Published at Dev
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I'm working with ZigBee, I receive data from a sensor of a end device, and I want to convert from hex to int. The data are from 4bytes, this information is regarding the battery, an example of what I get would be this: "00 00 00 e1" (but without blanks) and I need to pass this on to voltages, but first I think I need to pass it to int.

Anyone can help me please? I'm doing my application for Android.

Thank you in advance.

Bathsheba 
int n = (int)Long.parseLong(st.replaceAll("\\s+",""), 16);

(where st is your string) does it. Two things:

The replaceAll strips out any white space.

I go via the Long parser to circumvent NumberFormatExceptions for negatives

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