Question

Create a function which accepts an integer as parameter and return true if it is a prime number otherwise return false. In the main () method input an integer and using above method check whether it is a prime number or not​

Answer 1

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• Create a function which accepts an integer as parameter and return true if it is a prime number otherwise returns false. In the main() method input an integer and using above method check whether it is a prime number or not.

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class Program

{

static boolean isPrime(int n)

{

int c=0;

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

{

if(n%i==0)

c++;

}

return (c==2);

}

public static void main(String s[])

{

Scanner sc = new Scanner(System.in);

System.out.print("Enter a number: ");

int n=sc.nextInt();

if(isPrime(n))

System.out.println("Number is prime. ");

else

System.out.println("Number is not prime. ");

}

}