Write a Program in Java to input a number and check whether it is a Disarium Number or not.
Note: A number will be called DISARIUM if sum of its digits powered with their respective position is equal to the original number.
For example 135 is a DISARIUM
(Workings 11+32+53 = 135, some other DISARIUM are 89, 175, 518 etc)
import java.io.*;
class Disarium
{
public static void main(String[] args)throws IOException
{
BufferedReader br=new BufferedReader (new InputStreamReader(System.in));
System.out.print("Enter a number : ");
int n = Integer.parseInt(br.readLine());
int copy = n, d = 0, sum = 0;
String s = Integer.toString(n); //converting the number into a String
int len = s.length(); //finding the length of the number i.e. no.of digits
while(copy>0)
{
d = copy % 10; //extracting the last digit
sum = sum + (int)Math.pow(d,len);
len--;
copy = copy / 10;
}
if(sum == n)
System.out.println(n+" is a Disarium Number.");
else
System.out.println(n+" is not a Disarium Number.");
}
}
Note: A number will be called DISARIUM if sum of its digits powered with their respective position is equal to the original number.
For example 135 is a DISARIUM
(Workings 11+32+53 = 135, some other DISARIUM are 89, 175, 518 etc)
import java.io.*;
class Disarium
{
public static void main(String[] args)throws IOException
{
BufferedReader br=new BufferedReader (new InputStreamReader(System.in));
System.out.print("Enter a number : ");
int n = Integer.parseInt(br.readLine());
int copy = n, d = 0, sum = 0;
String s = Integer.toString(n); //converting the number into a String
int len = s.length(); //finding the length of the number i.e. no.of digits
while(copy>0)
{
d = copy % 10; //extracting the last digit
sum = sum + (int)Math.pow(d,len);
len--;
copy = copy / 10;
}
if(sum == n)
System.out.println(n+" is a Disarium Number.");
else
System.out.println(n+" is not a Disarium Number.");
}
}