question: public void testNegPos ( ) { String numA = "-27384627835298756289327365" ; String numB = "0" ; String res = "-27384627835298756289327365" ; BigInteger aNumber = new BigInteger ( numA ) ; BigInteger bNumber = new BigInteger ( numB ) ; BigInteger result = aNumber . xor ( bNumber ) ; assertTrue ( res . equals ( result . toString ( ) ) ) ; }
target:  Xor for a negative number and zero  