Question: ClassA is an immutable class that has an instance variable aBigInt of type java.math.BigInteger.ClassA has a copy constructor as follows: public final class ClassA

ClassA is an immutable class that has an instance variable aBigInt of type java.math.BigInteger.ClassA has a copy constructor as follows: public final class ClassA { private final BigInteger aBigInt; public ClassA(ClassA obj) { aBigInt = obj.aBigInt; } } Is there anything wrong with this code? Explain why it is right or wrong and edit it if wrong.

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