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- import java.util.Scanner;
- public class Multicalculator {
- public static void main(String[] args) {
- String yourNumbers = enterNum();
- int numberOne = stringToInteger(yourNumbers);
- int numberTwo;
- for (numberTwo>0; numberTwo<numberOne; numberTwo++){
- System.out.println("Please, enter a number");
- }
- }
- public static String enterNum() {
- Scanner scanner = new Scanner(System.in);
- System.out.println("How many numbers would you like to enter?");
- String yourNumbers = scanner.nextLine();
- boolean isItNum = checkString(yourNumbers);
- while (!isItNum) {
- System.out.println("Please, enter a number:");
- yourNumbers = scanner.nextLine();
- isItNum = checkString(yourNumbers);
- }
- return yourNumbers;
- }
- public static int stringToInteger(String numbers) {
- return Integer.parseInt(numbers);
- }
- public static boolean checkString(String string) {
- try {
- Integer.parseInt(string);
- return true;
- } catch (IllegalArgumentException e) {
- return false;
- }
- }
- }
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