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How to check if an int is a null

... An int is not null, it may be 0 if not initialized. If you want an integer to be able to be null, you need to use Integer instead of int. Integer id; String name; public Integer getId() { return id; } Besides the statement if(person.equals(null)) can...
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Given an RGB value, how do I create a tint (or shade)?

Given an RGB value, like 168, 0, 255 , how do I create tints (make it lighter) and shades (make it darker) of the color? 3...
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How to track down a “double free or corruption” error

... answered May 25 '10 at 8:42 HasturkunHasturkun 31.2k55 gold badges6565 silver badges9595 bronze badges ...
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Could not load file or assembly 'Newtonsoft.Json' or one of its dependencies. Manifest definition do

...embly> <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" /> <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" /> </dependentAssembly> If you want to ensure all your Newtonsoft.Json packages are the same vers...
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How to format an inline code in Confluence?

... 605 To insert inline monospace font in Confluence, surround the text in double curly-braces. This ...
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Python: print a generator expression?

...ator expression is a "naked" for expression. Like so: x*x for x in range(10) Now, you can't stick that on a line by itself, you'll get a syntax error. But you can put parenthesis around it. >>> (x*x for x in range(10)) <generator object <genexpr> at 0xb7485464> This is som...
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How to customize the background/border colors of a grouped table view cell?

... 100 UPDATE: In iPhone OS 3.0 and later UITableViewCell now has a backgroundColor property that make...
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SQL - The conversion of a varchar data type to a datetime data type resulted in an out-of-range valu

...n other formats like mm/dd/yyyy (usually works). Specifying the date as 30/12/2013 resulted in the error for me. However, specifying it as mm/dd/yyyy format worked. If you need to convert your input the you can try looking into the CONVERT method. Syntax is CONVERT(VARCHAR,@your_date_Value,103...
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Best way to make Java's modulus behave like it should with negative numbers?

...the negative values of a, since (a % b) is a negative value between -b and 0, (a % b + b) is necessarily lower than b and positive. The last modulo is there in case a was positive to begin with, since if a is positive (a % b + b) would become larger than b. Therefore, (a % b + b) % b turns it into s...
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Could not locate Gemfile

... answered Jul 25 '10 at 16:40 JoniJoni 2,85733 gold badges2121 silver badges2222 bronze badges ...