1 public class Car { 2 private static Car car = new Car(); 3 /** 4 * 多例,getInstance()取出里面一个,（jdbc,连接池） 5 private static List<Car> cars = new ArrayList<Car>(); 6 */ 7 private Car() {} 8 public static Car getInstance() { 9 return car; 10 } 11 }
原文：https://www.cnblogs.com/hengzhezou/p/11204279.html