question: public void testConstructorStringRadix16 ( ) { String value = "fe2340a8b5ce790" ; int radix = 16 ; byte rBytes [ ] = { 15 , - 30 , 52 , 10 , - 117 , 92 , - 25 , - 112 } ; BigInteger aNumber = new BigInteger ( value , radix ) ; byte resBytes [ ] = new byte [ rBytes . length ] ; resBytes = aNumber . toByteArray ( ) ; for ( int i = 0 ; i < resBytes . length ; i ++ ) { assertTrue ( resBytes [ i ] == rBytes [ i ] ) ; } assertEquals ( "incorrect sign" , 1 , aNumber . signum ( ) ) ; }
target:  Create a positive number from a string value and radix 16.