laba_2_2_java

import java.util.Scanner;
public class functions {
    private static final Scanner scanner = new Scanner(System.in);
    public static void main (String[] args) {
        int size1 = enterArraySize();
        int[] arr1 = inputArray(size1);
        float number1 = arrayToInt(size1, arr1);
        int size2 = enterArraySize();
        int[] arr2 = inputArray(size2);
        float number2 = arrayToInt(size2, arr2);
        divide(number1, number2);
    }

    public static int inputData (int min, int max) {
        int n = 0;
        boolean isIncorrect;
        do {
            isIncorrect = false;
            try {
                n = Integer.parseInt(scanner.nextLine());
            } catch (Exception e) {
                isIncorrect = true;
                System.out.println("Please, enter a positive integer number:");
            }
            if (!isIncorrect && (n < min || n > max))  {
                isIncorrect = true;
                System.out.println("Please, enter a positive number:");
            }
        } while (isIncorrect);
        return n;
    }

    public static int enterArraySize() {
        System.out.println("Input number of digits: ");
        final int min = 1;
        final int max = 10;
        return inputData(min,max);
    }

    public static int[] inputArray(int n) {
        final int min = 1;
        final int max = 9;
        int[] arr = new int[n];
        System.out.println("Enter the numbers one by one: ");
        for (int i = 0; i < n; i++)
            arr[i] = inputData(min, max);
        return arr;
    }

    public static int arrayToInt(int n, int[] arr) {
        int c = 0;
        for (int i = 0; i < n; i++)
            c = c * 10 + arr[i];
        return c;
    }

    public static void divide(float number1, float number2) {
        float number = number1 / number2;
        int k = 1;
        int numberForLoopVirgin = (int) number;
        if (numberForLoopVirgin == 0)
            k = 0;
        else {
            while ((numberForLoopVirgin /= 10) > 0)
                k++;
        }
        System.out.println("How many decimal places do you want to output? (<= 6)");
        int decimalPlaces;
        final int min = 0;
        final int max = 7;
        decimalPlaces = inputData(min, max);
        for (int i = 0; i < decimalPlaces; i++)
            number = number * 10;
        int n = decimalPlaces + k;
        int[] arr = new int[n];
        int numberInt = (int) number;
        for (int i = 0; i < n; i++) {
            arr[i] = numberInt % 10;
            numberInt /= 10;
        }
        System.out.println("Result is: ");
        if (k == 0)
            System.out.println("0");
        for (int i = n - 1; i > decimalPlaces - 1; i--)
            System.out.println(arr[i]);
        if (decimalPlaces > 0) {
            System.out.println(",");
            for (int i = decimalPlaces - 1; i > -1; i--)
                System.out.println(arr[i]);
        }
    }
}