Question

What is the result of the following code fragment?

BigInteger a = new BigInteger ("10");
BigInteger b = new BigInteger ("25");
a.multiply(b);
a.add(b);
System.out.println(a);


A. 10
B. 35
C. 250
D. 275

Answer 1

D

Step-by-step explanation:

I don't know the language, but it is clear what is going on.

It looks like you are defining a value for a in both commands.

a.multiply(b); looks like you take the value in a (which is 10) multiply it by 25 and put the result back in a. So so far we have 10 * 25 = 250

Note the next command

a.add(b)

looks like you take the current value in a(which is now 250)

and put the value of b (which has not been changed. It is still 25) and put that in a (which is 250).

The result is 250 + 25 = 275

The answer is D. Since I only understand the logic, if this answer is wrong, I wish you'd leave a note.