Computer Applications
Write a Java program to store n numbers in an one dimensional array. Pass this array to a function number(int a[]). Display only those numbers whose sum of digit is prime.
Java
Java Arrays
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Answer
import java.util.Scanner;
public class KboatSDAPrime
{
public void number(int a[]) {
System.out.println("Numbers whose sum of digit is prime:");
for (int i = 0; i < a.length; i++) {
int x = a[i];
int s = 0;
while (x != 0) {
int d = x % 10;
s += d;
x /= 10;
}
int c = 0;
for (int j = 1; j <= s; j++) {
if (s % j == 0) {
c++;
}
}
if (c == 2) {
System.out.println(a[i]);
}
}
}
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("Enter the number of elements: ");
int n = in.nextInt();
int arr[] = new int[n];
System.out.println("Enter array elements: ");
for (int i = 0; i < n; i++) {
arr[i] = in.nextInt();
}
KboatSDAPrime obj = new KboatSDAPrime();
obj.number(arr);
}
}Output
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