[Q#13021102][A#13021152] In java, how would I find the nth Fibonacci number?

https://stackoverflow.com/q/13021102

Determining the Fibonacci sequence is easy enough to figure out: My problem lies with trying to pinpoint the value for a specified N. As in, If I want to find the 6th element in the sequence, which is 8, how would I find that number, and only that number?

Answer

https://stackoverflow.com/a/13021152

In your code, num starts as the 0th Fibonacci number, and num1 as the 1st. So to find the nth, you have to iterate the step n times: and only print it when you've finished. When the loop counter loop has the value k, num holds the kth Fibonacci number and num2 the (k+1)th.

APIzation

for (loop = 0; loop < n; loop ++)
{
    fibonacci = num + num2;
    num = num2;
    num2 = fibonacci;
}
System.out.print(num);

package com.stackoverflow.api;

public class Human13021152 {

  public static int findNthFibonacciNumber(int n) {
    int num = 0;
    int num2 = 1;
    int loop;
    int fibonacci;
    System.out.print(num2);
    for (loop = 0; loop < n; loop++) {
      fibonacci = num + num2;
      num = num2;
      num2 = fibonacci;
    }
    System.out.print(num);
    return num;
  }
}

package com.stackoverflow.api;

/**
 * In java, how would I find the nth Fibonacci number?
 *
 * @author APIzator
 * @see <a href="https://stackoverflow.com/a/13021152">https://stackoverflow.com/a/13021152</a>
 */
public class APIzator13021152 {

  public static void findNumber(int n) throws Exception {
    int num2 = 0;
    int num = 0;
    int loop = 0;
    int fibonacci = 0;
    for (loop = 0; loop < n; loop++) {
      fibonacci = num + num2;
      num = num2;
      num2 = fibonacci;
    }
    System.out.print(num);
  }
}