frozen

事物总是在发展之接口调用

旧巷老猫 提交于 2020-04-14 08:53:29
【今日推荐】:为什么一到面试就懵逼!>>> 【方式一】 【demo】 假设我们有这么个接口 public interface Frozen1 { String frozen1(); } 这里是接口的实现 public class Frozen1impl implements Frozen1 { @Override public String frozen1() { String str = "这里是frozen1的实现方法"; System.out.println(str); return str; } public String frozenself(){ String str = "这里是frozen1的特有的方法"; System.out.println(str); return str; } } 现在我只想,调用frozen1() 这个方法:我们可以通过下面的两个方式 //方式1接口类型的引用变量A 去接收对象地址 Frozen1 frozen1 = new Frozen1impl(); frozen1.frozen1(); //方式2类类型的引用变量A 去接收对象地址 Frozen1impl frozen1impl = new Frozen1impl(); frozen1impl.frozen1(); frozen1impl.frozenself(); 实例化对象调用方法

【开发者成长】Vue.js 中有哪些性能陷阱

大兔子大兔子 提交于 2020-04-06 12:52:08
云栖号资讯:【 点击查看更多行业资讯 】 在这里您可以找到不同行业的第一手的上云资讯,还在等什么,快来! 我内心深处对游戏的热爱,让我一直渴望能自己制作一些电子游戏。几个月前我开始将这种梦想变为现实,并第一次参加了全球游戏大赛(Global Game Jam)。我和我的团队使用 Vue.js 构建了一个名为“ ZeroDaysLeft ”的游戏,其形式是 Web 端的单页面应用程序。这款游戏的主题是环境保护,我们考虑到商业活动对地球环境的影响,希望就这个话题做一些有益的探讨。使用 Vue.js 制作的游戏并不多。我的团队迟到了一天,然后用猜拳的方式选择了我们要用的框架;我们飞快地写完了代码,并在周末结束时做出了游戏的可运行版本。在本地测试时一切都很顺利。自然,我们为自己第一次写出来的游戏作品感到自豪,并希望与世界分享它。 可是问题出现了——当我们构建好应用并开始查询域时,内存占用爆表了。它几乎没法正常运行,不管换什么机器都会卡住不动,即使在强大的基于 Intel i7 处理器的系统上程序也会崩溃。游戏大赛的时间限制把我们拉回了现实,我们决定搁置生产性能问题,这样起码我们能做出一款能在自己的设备上运行的完整游戏。就像大部分的“已完成”项目一样,第二天我们就把它抛在脑后了。 但我自己没法释怀。它一直困扰着我。问题是出在 Vue.js 上吗?是 Netlify 吗?还是因为我们的取巧代码

Can you choose what files Frozen-Flask freezes?

我的未来我决定 提交于 2019-12-25 14:14:11
问题 I have an app that contains 3 apps within. One of the apps would be better if output as a static site because it is made up of static material as it is. I was able to use Frozen-Flask to create a static site application for the app on it's own, but I want to try and keep all three apps in the one WSGI app. So my question is, is there a way to choose what files Frozen-Flask chooses to freeze so it ignores the files in app1/ and app3/ (see file structure below)? Structure of files Flask/  

Python running from power-shell after correctly setting path variable, still fails to start and appears frozen

笑着哭i 提交于 2019-12-24 08:47:39
问题 I started here from this guide, Zed Shaw's guide for Learning Python the Hard Way. Came here reading a similar issue regarding the path variable, solved it by reinstalling the application and manually selecting to install path variable as an added option. (it was red, marked for exclusion) I also believe that setting it in power-shell worked too but was unsure until I did this. My issue is when I now run python, it just sits there. Appears frozen, cmd prompt is not responsive and I have go

how to filter cassandra query by a field in user defined type

試著忘記壹切 提交于 2019-12-17 20:50:59
问题 how to filter cassandra query by user defined type field? i want to create people table in my cassandra database so i create this user-defined-type in my cassandra database. create type fullname ( firstname text, lastname text ); and i have this table too. create table people ( id UUID primary key, name frozen <fullname> ); and i need to filter my query to know all people with lastname jolie. how can i query this from this table. and totally how is filtering and query in cassandra? I know i

JavaFX Frozen GUI When adding Button on flow panel

爱⌒轻易说出口 提交于 2019-12-13 09:38:40
问题 How to add 5000 buttons or labels to flow panel without freezing GUI in JAVA FX Just like this Why I even need so many buttons well, I don't need that many but at least 500 - 1000. Coz I'm building an application Fonticon Tool Slow is fine but not Freezing It's ok if the application is slow and take a couple of seconds to show all button But I don't want it to freeze progress bar and GUI How it works I have an SQLite database with a couple of tables, each table has a list of values. An object

how to detect if another java thread is suspended or frozen?

给你一囗甜甜゛ 提交于 2019-12-12 02:04:29
问题 I searched and found ways to determine if another thread is suspended by adding a boolean to it. But, I do not want (prefer not) to modify that other thread's code. And, I need to detect if it is frozen by any reason (even a bug, so in this case that other thread may also be unresponsive). I see how eclipse does it and shows the application's thread is not responding, I wonder how they coded that. Motivation: I need this to release the mouse (ungrab it) from a 3D lwjgl application, and this

spring

不想你离开。 提交于 2019-12-10 17:37:53
一般大家习惯的用法如下: public List<Map<String, Object>> queryByFundid(int fundId) { String sql = "SELECT * FROM t_freeze_detail WHERE fund_id = ? AND flag = ? AND freeze_state = ?"; return jt.queryForList(sql, new Object[]{fundId, Const.FLAG_NORMAL, FreezeDetailBean.FREEZE_STATUS_FROZEN}); } 通过问号的顺序,在jt(JdbcTemplate).queryForList后将参数对号入座。避免程序被注入。 但是当我们使用in的时候,这种方法就不好用了,相信你想过,用List匹配问号。你会发现出现这种的SQL: select * from user where id in ([1,2]) 1 执行报错。 下面是正确的用法: 参考资料: https://codedump.io/share/wiR37rEpCp2X/1/how-to-pass-list-parameter-in-in-clause-using-jdbctemplate http://www.technicalkeeda.com/spring

经典视频收录-BBC 神作

╄→尐↘猪︶ㄣ 提交于 2019-12-06 06:47:53
《七个世界一个星球》(Seven Worlds, One Planet) 《地球脉动》(Planet Earth) 《冰冻星球》(Frozen Planet) 《蓝色星球》(The Blue Planet) 《王朝》(Dynasties) 《我们的星球》(Our Planet) 《从太空看地球》(Earth From Space) 《塞伦盖蒂》(Serengeti) 来源: https://my.oschina.net/moks/blog/3136060

Visual Studio 2015 download getting stuck at applying Microsoft ASP.net

↘锁芯ラ 提交于 2019-12-03 11:37:49
问题 I'm currently on my third attempt trying to install Visual Studio 2015 on this computer. I have tried rebooting, hard shut downs, canceling setup and restarting, etc. Each time, it gets stuck at applying Microsoft ASP.net. I have tried leaving it overnight (12 hours). My download speed is 50-60 MBPS according to Ookla Speedtest. I am running Windows 10. I did do a "custom" installation and added C++, Python, and the Git extension. If I am not mistaken it said 7 GB size. Why is it doing this?