BingInteger(long) has private acces in BigInteger

Question

Can someone explain me why I get this error?

    public BigInteger getTotalIDIDirecto(){
          BigInteger totalIDI = new BigInteger(0);
          return totalIDI;

    }

Answer 1

The constructor BigInteger(long) is limited to private access and used internally. You can use

BigInteger totalIDI = BigInteger.ZERO;

Answer 2

That Constructor does not exist in the API.

See http://docs.oracle.com/javase/7/docs/api/java/math/BigInteger.html

You may want to use the valueOf static method.

Answer 3

Because that constructor is private. You have to use BigInteger.valueOf(long) instead.

http://docs.oracle.com/javase/7/docs/api/java/math/BigInteger.html#valueOf(long)

Pro and cons of static constructor are discussed here Static factory methods vs Instance (normal) constructors?