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Concatenating null strings in Java [duplicate]
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This is behavior specified in the Java API's String.valueOf(Object) method. When you do concatenation, valueOf is used to get the String representation. There is a special case if the Object is null, in which case the string "null" is used.
public static Strin...
How do I send an HTML email?
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@FizerKhan - really? docs.oracle.com/javaee/6/api/javax/mail/internet/…
– Nick Grealy
Mar 31 '15 at 3:49
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Strings in a DataFrame, but dtype is object
...oduction system where continuous package upgrades are necessary, and where API breakage cause an unacceptable maintenance burden, then sure, pay close attention to the word "experimental", but if you're using pandas to perform exploratory analyses in scripts whose life time do not increase a work da...
How to get the URL without any parameters in JavaScript?
...Microsoft Internet Explorer <= 10: developer.mozilla.org/en-US/docs/Web/API/Location/origin
– gouessej
Aug 8 at 9:48
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BIO与NIO、AIO的区别(这个容易理解) - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
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三、AIO
与NIO不同，当进行读写操作时，只须直接调用API的read或write方法即可。这两种方法均为异步的，对于读操作而言，当有流可读取时，操作系统会将可读的流传入read方法的缓冲区，并通知应用程序；对于写操作而言，当...
Reading 64bit Registry from a 32bit application
... AFAIK that's not possible with the Registry class but only when using the API directly.
This might help to get you started.
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Why is spawning threads in Java EE container discouraged?
...is now a standard, and correct way to create threads with the core Java EE API. By using Concurrency Utils, you ensure that your new thread is created, and managed by the container, guaranteeing that all EE services are available. Examples here and here
– Chris Ritchie
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When should one use final for method parameters and local variables?
... final fields.
Consider but use judiciously:
Final classes - Framework/API design is the only case where I consider it.
Final methods - Basically same as final classes. If you're using template method patterns like crazy and marking stuff final, you're probably relying too much on inheritance a...
How to play a notification sound on websites?
...ge
Advantages:
JavaScript-plugin for playing sounds based on Web Audio API with fallback to HTML5 Audio.
Plugin is working on most popular desktop and mobile browsers and can be used everywhere, from common web sites to browser games.
Audio-sprites support included.
No dependecies (jQuery not re...
WebView link click open default browser
...e that shouldOverrideUrlLoading(WebView view, String url) is deprecated in API 24. Check this answer.
– Mateus Gondim
May 13 '17 at 19:26
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