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  Java AbstractMethodError explained and demonstrated

According to Oracle Java API documentation, AbstractMethodError is a kind of runtime error where the application is having some incompatible changes which leads to a missing implementation of an abstract method. Below is the official description. Thrown when an application tries to call an abstract method. Normally, this error is caught by the compiler; this error can only occur at run time if the definition of some class has incompatibly changed since the currently executing method was last co...

   JAVA,ABSTRACTMETHODERROR     2016-07-22 22:03:20

  Huawei phone with HarmonyOS installed is becoming real

In past few days, there is a photo of a Huawei phone with HarmonyOS installed appearing on the web. This is an engineering testing phone circulating inside Huawei according to the source.  This is the first time that a real phone with Huawei's own operating system HarmonyOS installed is being seen on the web. This indicates that it will not be that far for general public to be able to access the new Huawei self developed OS. From the photo, there are a few indications: This phone sample s...

   HUAWEI,HARMONYOS,P40     2020-05-19 08:23:48

  How to enable developer mode on Huawei

As a developer, there might be some need to fake locations when developing and testing mobile apps for different countries. Lots of the times some fake GPS apps will be used and they will ask to enable mock location access on the device before allowing you to fake GPS. To achieve this, we first need to have developer mode enabled. In this post, we will show how the developer mode can be enabled and disabled on Huawei devices. Go to Settings, find About phone and open it. You should be able to se...

   ANDROID,HUAWEI,DEVELOPER MODE,DEVELOPER OPTIONS     2020-08-15 21:22:29

  Apple.com is down

UPDATE : The service is back now! Apple.com is now inaccessible. It shows below "Access denied" message on its official site. It is still unknown why the service is down. And there is no ETA on when the service will be back to normal. From the error message, some people think this happens because Apple uses Akamai's security product and the security policy in place is violated. It's basically a WAF. The big issue is it takes 45 minutes for changes to propagate through Akamai's network. So, you ...

   IPHONE 6S,IPHONE 6S PLUS,APPLE     2015-09-12 00:50:17

  A tour to Tumblr's office

This week Yahoo has made a deal with Tumblr that Yahoo would acquire Tumblr with $1.1 billion. The reason why Yahoo wants to acquire Tumblr is still not so clear. It may be because they don't want to miss the chance again after they missed the chance to acquire Facebook. But anyway, let's take a tour to the office environment of Tumblr. The big logo after entering the door. The office building in Tumblr has two floors. Most people are working on the first floor. Cute decorations Technical t...

   Tumblr,Office,Tour     2013-05-22 12:25:32

  What you may not know about PHP session

When we access one website, the site usually should have a mechanism to keep track of the status of the user on the site. There are a few mechanisms supported by many server side languages to help track user status such as session and cookie. Today we will talk about session, when creating a session, we need to keep track of many data, besides user data, we also need to tell the server what is the timeout of the session so that we can garbage collect the session data which should not be stored a...

   PHP session,session timeout,example     2013-07-06 08:44:18

  How Do I Enable Remote Access To MySQL Database Server?

By default remote access to MySQL database server is disabled for security reasons. However, some time you need to provide remote access to database server from home or a web server. If you want to remotely access to the database server from the web server or home, follow this quick tutorial.MySQL Remote AccessYou need type the following commands which will allow remote connections.Step # 1: Login Using SSH (if server is outside your data center)First, login over ssh to remote MySQL database ser...

   MySQL,Remote access,Enable,Host or webdomain     2011-10-31 00:31:41

  Weibo is testing an Instagram like app called Lvzhou

Weibo, the Chinese version of Twitter, is testing an Instagram like app called Lvzhou(Oasis in English). Now only invited people can access the app. You can download the app on App Store if you are an iPhone user or you can download online if you are an Android user. The vision of this app is to allow users to discover beautiful world, users can post photos or short videos and share with the rest of the world. Before you can access the app, you have to obtain an invitation code shared by y...

   INSTAGRAM,WEIBO,LVZHOU,OASIS     2019-09-07 09:59:54

  What do people think about IE?

Browser war among major browsers is continuing for a long time since last century. Just a few years ago, Internet Explorer was the most used web browser. But now the situation is completely different, people are making fun of Internet Explorer and switching to other browsers. Today we share some jokes about Internet Explorer, it's just for fun, so grab a cup of coffee and sit down and enjoy. Hmm, is IE so slow? What gun is it? Hmm, I am still one step behind And I am lost. Hey, what is HTML...

   IE,Joke,Chrome     2013-07-31 08:25:24

  PHP to get access token for Sina Weibo app

Previously I wrote two articles about getting access token for Facebook and Twitter apps using PHP. Today I will write one more article about getting access token for Sina Weibo app using PHP. OAuth 2.0 is now the authorization mechanism of Sina Weibo API. The API authorization process is similar to the process of Twitter. It has basically two steps: 1. Authorization; 2. Get access token. 1. Create an app. I hope you know how to create an app in Sina Weibo now. If not. You can access this page ...

   PHP,access token,Sina Weibo     2013-05-16 12:07:39

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