Check Prime Number Using Function in Java

import java.util.*;
class primefuntion
{
    static boolean isprime(int n)
    {
        int i,c=0;
        for(i=1;i<=n;i++)
        {
            if(n%i==0)
            c++;
        }
        if(c==2)
        return true;
        else
        return false;
    }
    public static void main(String args[])
    {
        int a;
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter the value of a");
        a=sc.nextInt();
    if(isprime(a))
    System.out.println("Prime");
    else
    System.out.println("Not prime");
}
}

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