學習Collections對list做排序
阿新 • • 發佈：2019-01-02
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import com.entyty.User;
public class ces {
public static void main(String[] args) {
List<User> list = new ArrayList<User>();
User user1 = new User(1, "張三", "123");
User user2 = new User(2, "李四", "234");
User user3 = new User(3, "王五", "345");
User user4 = new User(3, "趙六", "456");
User user5 = new User(3, "孫七", "567");
User user6 = new User(6, "錢八", "678");
User user7 = new User(7, "周九", "789");
list.add(user1);
list.add(user6);
list.add(user3);
list.add(user7);
list.add(user5);
list.add(user2);
list.add(user4);
import java.util.Collections;
import java.util.List;
import com.entyty.User;
public class ces {
public static void main(String[] args) {
List<User> list = new ArrayList<User>();
User user1 = new User(1, "張三", "123");
User user2 = new User(2, "李四", "234");
User user3 = new User(3, "王五", "345");
User user4 = new User(3, "趙六", "456");
User user5 = new User(3, "孫七", "567");
User user6 = new User(6, "錢八", "678");
User user7 = new User(7, "周九", "789");
list.add(user1);
list.add(user6);
list.add(user3);
list.add(user7);
list.add(user5);
list.add(user2);
list.add(user4);