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When should we call System.exit in Java

... In that case, it's not needed. No extra threads will have been started up, you're not changing the exit code (which defaults to 0) - basically it's pointless. When the docs say the method never returns normally, it means the subsequent line of code is effect...
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What RSA key length should I use for my SSL certificates?

...here was an attempt circa 2010-2015 to launch 3072 for use-cases where the extra computational cost of 4096 is not ideal. It faded away but there are still some old articles spreading the merits of (faster) 3072. Extra RSA was first publicly described in 1977 and it's still strong almost 50 year...
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Alternative to itoa() for converting integer to string C++? [duplicate]

...ing if there was an alternative to itoa() for converting an integer to a string because when I run it in visual Studio I get warnings, and when I try to build my program under Linux, I get a compilation error. ...
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Storing money in a decimal column - what precision and scale?

...es are stored using an integer for the smallest unit. class Currency { String code; // eg "USD" int value; // eg 2500 boolean converted; } class Price { Currency grossValue; Currency netValue; Tax taxRate; } In the database, the values are stored as a string in ...
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Insert code into the page context using a content script

...n('\n'); Method 2b: Using a function For a big chunk of code, quoting the string is not feasible. Instead of using an array, a function can be used, and stringified: var actualCode = '(' + function() { // All code is executed in a local scope. // For example, the following does NOT overwrit...
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How to design a product table for many kinds of product where each product has many parameters

...e table for Products, storing attributes common to all product types. One extra column stores a BLOB of semi-structured data, in XML, YAML, JSON, or some other format. This BLOB allows you to store the attributes specific to each product type. You can use fancy Design Patterns to describe this, s...
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Read file from line 2 or skip header row

...oordinates.txt --------------- Name,Longitude,Latitude,Elevation, Comments String, Decimal Deg., Decimal Deg., Meters, String Euler's Town,7.58857,47.559537,0, "Blah" Faneuil Hall,-71.054773,42.360217,0 Yellowstone National Park,-110.588455,44.427963,0 Then method extraction allows you to specify ...
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What is the use of static variable in C#? When to use it? Why can't I declare the static variable in

...ross all of them. Thus, at any given point of time, there will be only one string value contained in the permanent variable. Since there is only one copy of the variable available for all instances, the code this.permament will result in compilation errors because it can be recalled that this.vari...
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Remove unwanted parts from strings in a column

I am looking for an efficient way to remove unwanted parts from strings in a DataFrame column. 9 Answers ...
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Setting a property by reflection with a string value

...e to set a property of an object through Reflection, with a value of type string . So, for instance, suppose I have a Ship class, with a property of Latitude , which is a double . ...