A program to Find whether number is Prime or Not

class PrimeNo
{
public static void main(String args[])
{
int num = Integer.parseInt(args[0]);
int flag=0;
for(int i=2;i<num;i++)
{
if(num%i==0)
{
System.out.println(num+” is not a Prime Number”);
flag = 1;
break;
}
}
if(flag==0)
System.out.println(num+” is a Prime Number”);
}
}