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- import java.util.Scanner;
- public class Task1 {
- public static void main(String[] args) {
- char[] charSet;
- int count = 0;
- Scanner scanner = new Scanner(System.in);
- System.out.println("Введіть число n ");
- charSet = scanner.nextLine().toCharArray();
- for (char c : charSet) {
- if (c == '1') {
- count++;
- }
- }
- System.out.println("Кількість цифр числа n, які дорівнюють 1: " + count);
- scanner.close();
- }
- }
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