HomeWork_20_febryary

package ru.itsjava;

public class HomeWork_20_febryary{
    public static void main(String[] args) {
        System.out.println(taskZero(5));
        int[] array = {0,1,2,3,4,5,6,7,8,9};
        taskOne(array,0);
        int number = 12;
        taskThree(number,0,1, 2);
    }

    private static int taskZero(int num){
        int factorial=1;
        for(int i = 1;i<=num;i++){
            factorial*=i;
        }
        return factorial;
    }

    private static int taskOne(int[] array,int num){
        if(num==(array.length-1)){
            System.out.println(array[num]);
            return array[num];
        }
        System.out.println(array[num]);
        return taskOne(array, num+1);
    }

    private static int taskThree(int number, int fibonacciOne, int fibonacciTwo, int count){
        System.out.println(fibonacciOne);
        if(number==count){
            System.out.println(fibonacciTwo);
            return fibonacciTwo;
        }
        fibonacciTwo+=fibonacciOne;
        fibonacciOne=fibonacciTwo-fibonacciOne;
        count++;
        return taskThree(number,fibonacciOne,fibonacciTwo,count);
    }
}