package main;

import module java.base;

import java.util.List;
import java.util.*;
import aaa.AAA;
import aaa.CCC;
import aaa.BBB;

import java.util.ArrayList;

public class Main {
  void usage() {
    new ArrayList<>();
    new AAA();
    new BBB();
    new CCC();
    List<String> a = new ArrayList<>();
    a.add("a");
    Date da =new Date();
  }
}