12 prime series between two numbers

// Q 12 Print prime numbers between two numbers
import java.util.*;
public class Main
{
    static boolean check(int n){
        int i=2;
        while(i*i <= n){
            if(n%i==0){
                return false;
            }
            i++;
        }
        return true;
    }
    public static void main(String[] args) {
        Scanner sc= new Scanner(System.in);
        System.out.println("Enter the first number");
        int a = sc.nextInt();
        System.out.println("Enter the second number");
        int b = sc.nextInt();
        while(a<b){
           a++;
           if(check(a)){
                System.out.print(a+" ");
           }
        }
    }
}

/*
Enter the first number
5
Enter the second number
20
7 11 13 17 19
*/