(a+1)*b + c
The following does not work:
BigInteger sum = new BigInteger( "0" ); sum = sum.add( 5 );
You might hope that the literal five would be automatically converted into a BigInteger.
But this does not happen.
The compiler does not automatically construct a BigInteger based on context
as it does with wrapper classes (autoboxing).
Here is another program with an odd expression:
import java.math.BigInteger;
class OddExpression
{
public static void main ( String[] args )
{
BigInteger a = new BigInteger( "34" );
BigInteger b = new BigInteger( "-3" );
BigInteger c = new BigInteger( "23" );
BigInteger d = new BigInteger( "5" );
BigInteger r = a.multiply( b.add(c) ).add( d );
System.out.println("Result: " + r);
}
}
Result: 685
Which of the following expressions is equivalent to the above expression for r?