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What does the ^ operator do in Java?

...y for this task. Horner's scheme Addressing your specific need, you actually don't need to compute various powers of 10. You can use what is called the Horner's scheme, which is not only simple but also efficient. Since you're doing this as a personal exercise, I won't give the Java code, but he...
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How to distinguish mouse “click” and “drag”

...dited Jun 26 '19 at 12:45 Rivenfall 80466 silver badges1414 bronze badges answered May 18 '11 at 9:03 wong2won...
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How to call one shell script from another shell script?

...he path where the file is to the $PATH environment variable. Then you can call it as a normal command; Or call it with the source command (alias is .) like this: source /path/to/script; Or use the bash command to execute it: /bin/bash /path/to/script; The first and third methods execute the script...
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Config Error: This configuration section cannot be used at this path

... "Application Development Features" Check (enable) the features. I checked all but CGI. btw, I'm using Windows 7. Many comments over the years have certified this works all the way up to Windows 10 and Server 2019, as well. ...
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How to get image size (height & width) using JavaScript?

... You can programmatically get the image and check the dimensions using Javascript... const img = new Image(); img.onload = function() { alert(this.width + 'x' + this.height); } img.src = 'http://www.google.com/intl/en_ALL/images/logo.gif'; ...
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Java's Virtual Machine and CLR

As a sort of follow up to the question called Differences between MSIL and Java bytecode? , what is the (major) differences or similarity in how the Java Virtual Machine works versus how the .NET Framework Common Language Runtime (CLR) works? ...
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What is the “Execute Around” idiom?

... Basically it's the pattern where you write a method to do things which are always required, e.g. resource allocation and clean-up, and make the caller pass in "what we want to do with the resource". For example: public interface ...
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Best way to build a Plugin system with Java

... First you need an interface that all plugins need to implement, e.g. public interface Plugin { public void load(PluginConfiguration pluginConfiguration); public void run(); public void unload(); public JComponent getConfigurationPage(); } ...
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Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?

...wered Jun 29 '12 at 21:16 Lily BallardLily Ballard 164k2525 gold badges355355 silver badges331331 bronze badges ...
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What does LINQ return when the results are empty

I have a question about LINQ query. Normally a query returns a IEnumerable<T> type. If the return is empty, not sure if it is null or not. I am not sure if the following ToList() will throw an exception or just a empty List<string> if nothing found in IEnumerable result? ...