ISC 2021 Computer Practical Question 1 – Fascinating Number Program
-WRITTEN BY CODERGURUJI
Solution :
import java.util.*;
class Fascinating
{
public static void main(String agrs[])
{
int f=0;
Scanner sc=new Scanner(System.in);
System.out.println("Enter the value for m and n: ");
int m=sc.nextInt();
int n= sc.nextInt();
if(m>n||m<99||n<99||m>10000||n>10000)
{
System.out.println("INVALID INPUT");
}
else
{
System.out.print("THE FASCINATING NUMBERS ARE:");
for(int i=m;i<=n;i++)
{
int n2 = i*2;
int n3 = i*3;
String s = "" + i + n2 + n3;
int l = s.length();
char ch,ch1;
int j,c=0;
for(ch1='1';ch1<='9';ch1++)
{
c=0;
for(j=0;j<l;j++)
{
ch = s.charAt(j);
if(ch == ch1)
c++;
}
if(c!=1)
break;
}
if(ch1 > '9')
{
f++;
System.out.print(i+" ");
}
}
if(f>0)
{
System.out.println();
System.out.print("FREQUENCY OF FASCINATING NUMBERS IS:"+f);
}
if(f==0)
{
System.out.print("NIL");
System.out.println();
System.out.print("FREQUENCY OF FASCINATING NUMBERS IS:"+f);
}
}
}
}
----------------------------end----------------------------
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