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What is the difference between JSF, Servlet and JSP?
...s backend data (via attributes available in the page, request, session and application scopes), mostly in combination with taglibs.
When a JSP is requested for the first time or when the web app starts up, the servlet container will compile it into a class extending HttpServlet and use it during the...
How to use SharedPreferences in Android to store, fetch and edit values [closed]
...:
SharedPreferences prefs = this.getSharedPreferences(
"com.example.app", Context.MODE_PRIVATE);
To read preferences:
String dateTimeKey = "com.example.app.datetime";
// use a default value using new Date()
long l = prefs.getLong(dateTimeKey, new Date().getTime());
To edit and save pre...
The entitlements specified…profile. (0xE8008016). Error iOS 4.2
I am getting the 'dreaded' error The entitlements specified in your application’s Code Signing Entitlements file do not match those specified in your provisioning profile.
(0xE8008016). when trying to deploy my first app to an un-jailbroken device on iOS 4.2.6 (Verizon). The thing is, I do not h...
What's the best way to share data between activities?
I have one activity which is the main activity used throughout the app and it has a number of variables. I have two other activities which I would like to be able to use the data from the first activity.
Now I know I can do something like this:
...
When - and why - should you store data in the Windows Registry?
...big.
Solution (WinXP): Large blocks of individual data moved to user's own Application Data folder.
Problem: Good for large amounts of data, but rather complex for small amounts.
Solution (.NET): small amounts of fixed, read-only data stored in .config (Xml) files in same folder as application, with...
Is it a good idea to use Google Guava library for Android development?
I am involved in the development of Android application which is a rather "thick" mobile client for a Web service. It heavily communicates with the server but also has a lot of inner logic too. So, I decided to use some features of Google Guava library to simplify development process. Here is a li...
【解决】运行故障：The arguments,["xxx"], [false], [0] are th...
一般出现这个错误，大概率是因为参数个数、参数类型与调用方法不符导致的。检查一下参数，是否有空的地方没填上！
How do I make a JAR from a .java file?
I was writing a simple program using a Java application (not application that has projects, but application within a project; .java ) that has a single frame. Both of the files are .java so I can't write a manifest needed by the JAR.
...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
...f the Python server starts successfully, you will see a msg.
Run You Web Application Locally
Open a browser
In the address line type: http://your IP address:port
http://xxx.xxx.x.x:1337 or http://xx.xxx.xxx.xx:8000 for the default
If the server is working, you will see a list of your files in t...
Simulate airplane mode in iPhone Simulator
...
It's harder than it sounds, though our team has asked Apple for similar functionality. The problem is that apps running in the simulator are really Mac apps. The iPhone Simulator doesn't emulate the iPhone; it's just an environment for Mac apps to link against and look like an i...