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How can I clear or empty a StringBuilder? [duplicate]

... Two ways that work: Use stringBuilderObj.setLength(0). Allocate a new one with new StringBuilder() instead of clearing the buffer. share | improve this answer | ...
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Are static variables shared between threads?

...one thread makes becoming visible to other threads in a timely manner (actually the JVM has no obligation to make those changes visible to you at all, in any time frame), unless you establish a happens-before relationship. Here's a quote from that link (supplied in the comment by Jed Wesley-Smith): ...
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Boolean vs boolean in Java

... It should be noted the a Boolean actually has 3 states... true, false and null where a boolean has the logical 2 states (true and false) – respectTheCode Jun 6 '14 at 15:46 ...
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Difference between StringBuilder and StringBuffer

... and synchronization is virtually never required. If someone wants to synchronize on a StringBuilder, they can just surround the entire block of code with a synchronized (sb) { } on the instance – locka Apr 24 '13 a...
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How does Python manage int and long?

Does anybody know how Python manage internally int and long types? 9 Answers 9 ...
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网

...不需要回复的可留空~ 请描述您的问题(300字以内): 给个鼓励也行呐~o~ 提供截图(仅截取当前可视区域...
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Creating JSON on the fly with JObject

... '500 gigabyte hard drive' ] }"); This has the nice benefit of actually being JSON and so it reads as JSON. Or you have test data that is dynamic you can use JObject.FromObject operation and supply a inline object. JObject o = JObject.FromObject(new { channel = new { title ...
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网

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Stopping python using ctrl+c

... it just hides it to the background and suspends it. You can type fg to recall it. – Shady Xu Mar 21 '14 at 3:20 ...
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Python: List vs Dict for look up table

...the hash table, only pointers, i.e. hou have 40M for the ints (well, not really when a lot of them are small) and 60M for the hash table. I agree that it's not that much of a problem nowadays, still it's worthwhile to keep in mind. – Torsten Marek Feb 5 '09 at ...