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Measure execution time for a Java method [duplicate]

... To be more precise, I would use nanoTime() method rather than currentTimeMillis(): long startTime = System.nanoTime(); myCall(); long stopTime = System.nanoTime(); System.out.println(stopTime - startTime); In Java 8 (output for...
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How do I check if string contains substring? [duplicate]

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Dark color scheme for Eclipse [closed]

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how to calculate binary search complexity

...kground I am not able to relate to it. Can somebody explain it in a little more detail? does it have to do something with the logarithmic series? ...
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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?

...e different routing algorithms, to name a couple(rabbit provides these and more). Depending on the size of your project, you may also want the message passing component separate from your database, so that if one component experiences heavy load, it need not hinder the other's operation. As for the...
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What's the difference between encoding and charset?

...ery encoding has a particular charset associated with it, but there can be more than one encoding for a given charset. A charset is simply what it sounds like, a set of characters. There are a large number of charsets, including many that are intended for particular scripts or languages. However...
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How to get the function name from within that function?

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How to create a custom exception type in Java? [duplicate]

... You should add two more constructors (WordContainsException(Throwable) and WordContainsException(String, Throwable)) to properly support exceptions chaining – Danilo Piazzalunga Sep 18 '13 at 13:11 ...
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How can I make one python file run another? [duplicate]

... There are more than a few ways. I'll list them in order of inverted preference (i.e., best first, worst last): Treat it like a module: import file. This is good because it's secure, fast, and maintainable. Code gets reused as it's su...
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How big can a MySQL database get before performance starts to degrade

... The database size does matter. If you have more than one table with more than a million records, then performance starts indeed to degrade. The number of records does of course affect the performance: MySQL can be slow with large tables. If you hit one million records...