using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace DBImportTool.Sgile { //第一种单例模式Demo public class A { private volatile static A _instance = null;
在linux环境下,没有root权限的情况下,有时会碰到如下问题: Building prefix dict from the default dictionary ... Loading model from cache /tmp/jieba.cache Dumping model to file cache /tmp/jieba.cache Dump cache file failed. Traceback (most recent call last): File , in initial
/* * 设计模式之单例模式的简单demo */ class Single { /* * 创建一个本类对象. * 和get/set方法思想一样,类不能直接调用对象 * 所以用private限制权限 */ private static Single s = new Single(); /* * 构造函数私有化目的是为了只能产生一个对象 */ private Single(){} // 定义一个方法返回该对象,让外部可以调用. public static Single getInstance() {
开发环境:win7,Android Studio 1.2, 1.Model Crime,数据模型,每个Crime有一个UUID作为唯一标识. package tina.criminalintent; import java.util.Date; import java.util.UUID; /** * Created by CW3479 on 2015/7/13. */ public class Crime { private UUID mId; private String mTitle; p