Programming Examples
Java program to input an integer and check whether it is a prime number or not.
Write a program to input an integer and check whether it is a prime number or not.
Solution
class PrimeNumber
{
public static void main(Strign arr[])
{
Scanner sc=new Scanner(System.in);
int i,n,c=0;
System.out.println("Enter an integer:");
n=sc.nextInt();
for(i=1;i<=n;i++)
{
if (n%i==0)
c++;
}
if(c==2)
System.out.println("Prime number");
else
System.out.println("Not a Prime number");
}
}
Output