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Why can't variable names start with numbers?
...s well as a valid number.
int 17 = 497;
int 42 = 6 * 9;
String 1111 = "Totally text";
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Android, How to limit width of TextView (and add three dots at the end of text)?
...t the three dots).
android:maxLines="1"
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:maxLines="1"
android:text="one two three four five six seven eight nine ten" />
This just forces the text to one line. Any extra text is hidd...
Click button copy to clipboard using jQuery
...ard in most browsers because most browsers have the ability to programmatically copy a selection of text to the clipboard using document.execCommand("copy") that works off a selection.
As with some other actions in a browser (like opening a new window), the copy to clipboard can only be done via a ...
What is JSONP, and why was it created?
...
It's actually not too complicated...
Say you're on domain example.com, and you want to make a request to domain example.net. To do so, you need to cross domain boundaries, a no-no in most of browserland.
The one item that bypasses ...
App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...以参考我摘录的官方的一个说明：http://blog.sina.com.cn/s/blog_66fa66650102w7is.html以及我在实施地图调用过程中的一些记录说明：http://blog.sina.com.cn/s/blog_66fa66650102wwfl.html（3）调用高德地图：
高德地图的uri参考地址：http://lbs.amap.com/api/u...
What is the best way to check for Internet connectivity using .NET?
...google.com does not return some HTML :)
– Daniel Vassallo
Jan 9 '10 at 1:01
3
@Daniel: true on th...
How can I change the language (to english) in Oracle SQL Developer?
...glish because there is no russian language support for the program and it falls back to english?
– simon
Oct 17 '11 at 11:13
...
Efficiently test if a port is open on Linux?
... to connect by loopback. If it fails, then the port is closed or we aren't allowed access. Afterwards, close the connection.
Modify this for your use case, such as sending an email, exiting the script on failure, or starting the required service.
...
HtmlSpecialChars equivalent in Javascript?
...
@jbo5112 good point, I didn't realize JS allowed callbacks for replacement. This code is easier to understand though, and I doubt that shaving a few milliseconds off of escapeHtml() is going to make a difference unless you are calling it hundreds of times in a row f...
Android emulator shows nothing except black screen and adb devices shows “device offline”
...tor comes up on the screen. But even after waiting for as long as 2-3 hrs, all it shows is a black screen. Not even the android home screen or the android logo. Just a black screen. And while initially "adb devices" shows the emulator as offline.after 2-3 minutes the list of attached devices becomes...