Get fibonacci - Android java.lang

Android examples for java.lang:Math

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Description

Get fibonacci

Demo Code


//package com.java2s;
import java.math.BigInteger;
import java.util.ArrayList;

public class Main {
    private static ArrayList<BigInteger> fibCache = new ArrayList<BigInteger>();

    public static BigInteger fibonacci(int n) {
        if (n >= fibCache.size()) {
            fibCache.add(n, fibonacci(n - 1).add(fibonacci(n - 2)));
        }//from  ww  w . j  a  v  a 2 s .c o  m

        return fibCache.get(n);
    }
}

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