InterviewSolution
| 1. |
Need a JAVA PROGRAM on- Write a program to input a number and check whether the number is twisted prime or not. |
|
Answer» CODE : import java.util.*; class twisted_prime { public VOID main() { SCANNER sc=new Scanner(System.in); System.out.println("Enter a number to check whether it is twisted prime or not"); int n=sc.nextInt(); int f=0; int c=0; for(int i=1;i<=n;i++) { if(n%i==0) { c=c+1; } } if(c==2) { f=1; } if(f==1) { int rev=0; int cpy=n; c=0; int d=0; while(n>0) { d=n%10; rev=rev*10+d; n=n/10; } for(int i=1;i<=rev;i++) { if(rev%i==0) { c=c+1; } } if(c==2) { System.out.println("Twisted prime number"); } else { System.out.println("Not a twisted prime number"); } } else { System.out.println("Not a twisted prime number"); } } } The number is TAKEN as input with the help of scanner class . Then we check whether the number is prime or not by using for loop and counter variable . Then we can reverse the number using digit extraction . After that check whether the reverse of the number is prime or not . Then if both conditions are TRUE we will print that the numbers are twisted primes otherwise not . |
|