Twin Prime No.

How to write a program to accept 2 numbers and check whether they are twin primes or not?

/**

* The class TwinPrime inputs 2 numbers and checks whether they are twin primes or not

*/

  

import java.io.*;

class TwinPrime

{

     

/* Function isPrime( ) returns 'true' when the number 'x' is Prime and 'false' if it is not. */

boolean isPrime(int x)

{

int count=0;

for(int i=1;i<=x;i++)

{

if(x%i==0)

count++;

}

if(count==2)

return true;

else

return false;

}

  

public static void main(String args[]) throws IOException

{

TwinPrime ob = new TwinPrime();

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

int m,n;

int c=0;

System.out.print("Enter the 1st number = ");

m=Integer.parseInt(br.readLine());

System.out.print("Enter the 2nd number = ");

n=Integer.parseInt(br.readLine());

  

boolean a = ob.isPrime(m);

boolean b = ob.isPrime(m);

c = Math.abs(m-n);

if(b == true && b == true && c == 2)

  System.out.println("The numbers are Twin Primes");

else

  System.out.println("The Numbers are Not Twin Primes");

}

}