Java 需要快速读出和写入的框架架构

//对标牛客竞赛小白月赛109 a题
//
import java.util.*;
import java.io.*;
public class Main{
    static long n;
    static BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
    static PrintWriter wt = new PrintWriter(new OutputStreamWriter(System.out));
    
    public static void main(String[] args)throws Exception{
        int t = nextInt();
        while (t -- > 0){
            n = nextLong();
            if (n <= 2) wt.println(n);
            else {
                if ((n % 2) == 1) wt.println(3);
                else wt.println(2);
            }
        }
        wt.flush();
    }
    public static int nextInt() throws Exception {//int型
        return Integer.parseInt(bf.readLine());
    }
 
    public static long nextLong() throws Exception {//long型
        return Long.parseLong(bf.readLine());
    }
}