making list of prime numbers java

1Now let’s see print first 10 prime numbers in java.
2
3public class FirstTenPrimeNumbers
4{
5   public static void main(String[] args) 
6   {
7      int count = 0, number = 0, a = 1, b = 1;  
8      while(number < 10)  
9      {  
10         b = 1;  
11         count = 0;  
12         while(b <= a)  
13         {  
14            if(a%b == 0)  
15                count++;  
16            b++;
17         }  
18         if(count == 2)  
19         {  
20            System.out.printf("%d ", a);  
21            number++;  
22         }  
23         a++;  
24      }
25   }
26}

1public class Prime {
2
3    public static void main(String[] args) {
4
5        int num = 29;
6        boolean flag = false;
7        for(int i = 2; i <= num/2; ++i)
8        {
9            // condition for nonprime number
10            if(num % i == 0)
11            {
12                flag = true;
13                break;
14            }
15        }
16
17        if (!flag)
18            System.out.println(num + " is a prime number.");
19        else
20            System.out.println(num + " is not a prime number.");
21    }
22}