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- import java.util.Random;
- import java.util.Scanner;
- public class Helper {
- public static Scanner scanner = new Scanner(System.in);
- public static Random random = new Random();
- private static Double getDouble(String inputMessage, String errorMessage) {
- while(true){
- try {
- System.out.print(inputMessage);
- return Double.parseDouble(scanner.nextLine());
- } catch (NumberFormatException e) {
- System.err.println(errorMessage);
- }
- }
- }
- public static Double getDouble(String inputMessage){
- return getDouble(inputMessage, "\nError: el valor ingresado no es un nΓΊmero");
- }
- private static Integer getInt(String inputMessage, String errorMessage) {
- while(true){
- try {
- System.out.print(inputMessage);
- return Integer.parseInt(scanner.nextLine());
- } catch (NumberFormatException e) {
- System.err.println(errorMessage);
- }
- }
- }
- public static Integer getInt(String inputMessage) {
- return getInt(inputMessage, "\nError: el valor ingresado no es un entero");
- }
- }
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