Fibonacci sequence for n > 46 Java

Question

I have the following code which provides the correct values for n < 47.

public static int fib(int n) {
    int nthTerm = 0;
    if (n == 2)
        nthTerm =          


        

Answer 1

Use long instead of using int, and remember to cast the value from Math.round() to long as well (by writing (long) Math.round(...) just as you casted to int) .