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- import java.util.Scanner;
- public class Main2 {
- public static void main(String[] args) {
- System.out.println("Введите Число суммирований ");
- Scanner in = new Scanner(System.in);
- final int maxNum = 1000;
- final String errorMessage = "ОШИБКА, введите целое положительное число (от 0 до " + maxNum + ")";
- boolean isCorrect = true;
- int n = 0;
- int i;
- double sum = 1;
- do {
- try {
- n = in.nextInt();
- if (n>0)
- isCorrect = false;
- else
- System.out.println(errorMessage);
- }
- catch (Exception e) {
- System.out.println(errorMessage);
- in.nextLine();
- }
- }
- while (isCorrect);
- for (i = 2; i < (n + 1); i++)
- sum += 1.0 / (i * i * i);
- System.out.println("Сумма равна " + sum);
- }
- }
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