TO CHECK WHETHER THE NUMBER IS SPECIAL NUMBER OR NOT
ALGORITHM
Step-1 Start
Step-2 Declaration of method for finding the factorial value of any no.
Step-3 Declaration of the main program.
Step-4 Take value from the user.
Step-5 Initialization of variables.
Step-6 Extract each digit from the entered value till its value becomes 0 a send each digit into the method one by one and add its returning value in a variable in main program.
Step-7 If the sum is equal to the original entered value then the result will be true else false.
Step-7 Exit
PROGRAM
class special
{
public static long fact(int x)
{
long i,f=1;
for (i=1;i<=x;i++)
{
f=f*i;
}
return f;
}
public static void main(int a)
{
special obj = new special();
long r=0,n=a,s=0;
while(a>0)
{
int k=a%10;
r=obj.fact(k);
s=s+r;
a=a/10;
}
if (s==n)
System.out.println("The entered number is special");
else
System.out.println("The entered number is not special");
}
}
VARIABLE DESCRIPTION-
VARIABLE USED | DATATYPE | DESCRIPTION |
a | Integer type | For taking the number from the user. |
r | Long type | For storing the returning value. |
n | Long type | For storing the original number. |
s | Long type | For storing the sum of the digits. |
k | Integer type | For extracting the last digit of the entered number. |
INPUT/OUTPUT-
INPUT | OUTPUT |
145 | The entered number is special |
12345 | The entered number is not special |
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