Program for display total number of prime number fr array in java

//Program to count the no. of prime elements in an array
import java.io.*;
public class prime_arr
{
public static int isprime(int n)
{
int i,c=0;
for(i=1;i<=n;i++)
{
if(n%i==0)
c++;
}
if(c==2)
return 1;
else
return 0;
}
public static void main()throws IOException
{
InputStreamReader isr=new InputStreamReader(System.in);
BufferedReader br=new BufferedReader(isr);
int ar[]=new int[15];
int i,c=0;
for(i=0;i<15;i++)
{
System.out.println("Enter the 15 elements");
ar[i]=Integer.parseInt(br.readLine());
}
for(i=0;i<15;i++)
{
if(isprime(ar[i])==1)
c++;
}
System.out.println("No. of prime values="+c);
}
}