Bài 6. Viết chương trình liệt kê n số nguyên tố đầu tiên.

import java.util.Scanner;

public class Main {

    public static void lietKe(int n){

                        int i=2,count=0;

                        while(count<n){

                                    if(cachamchung.checkSNT(i)){

                                                System.out.print(" "+i);

                                                count++;

                                    }

                                    i++;

                        }

            }

    public static int nhap(){

                        Scanner input= new Scanner(System.in);

                        boolean check= false;

                        int n=0;

                        while(!check){

                                    System.out.print(" ");

                                    try{

                                                n= input.nextInt();

                                                check= true;

                                    }catch(Exception e){

                                                System.out.println("Ban phai nhap so! hay nhap lai...");

                                                input.nextLine();

                                    }

                        }

                        return (n);

            }

    public static void main(String[] args) {

        System.out.print("Nhap n");

                        int n= nhap();

                        System.out.println(n+" so nguyen to dau tien la: ");

                        lietKe(n);

    }

}