Page 579 - ComputerScience_Class_11
P. 579
Program 9 Write a program to input an array of integers and find if there are any magic numbers in the
array. The specifications of the class magic are given below.
class : Magic
Data Members
int num[] : single dimensional array to store number
int n : size of array
Member Methods
magic(int s) : constructor to store s to n
void input() : inputs value to num
int digit_sum(int i) : returns the sum of the digits in i
void find_magic() : calls the digit_sum(int) and prints all the magic numbers
in the array
eg: Magic number: 289=2+8+9=19=1+9=1
So, magic number is a numbers whose ultimate sum of the digits is 1.
1 import java.util.Scanner;
2
3 class Magic
4 {
5 int num[];
6 int n;
7 Magic(int s)
8 {
9 n = s;
10 num = new int[n];
11 }
12
13 void input()
14 {
15 Scanner sc = new Scanner(System.in);
16 System.out.println("Enter " + n + " integers:");
17 for (int i = 0; i < n; i++)
18 {
19 num[i] = sc.nextInt();
20 }
21 }
22
Internal Assessment 577
