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Getting the array length of a 2D array in Java
...ength); //3
System.out.println(foo[1].length); //4
}
Column lengths differ per row. If you're backing some data by a fixed size 2D array, then provide getters to the fixed values in a wrapper class.
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Change how fast “title” attribute's tooltip appears
...ange how fast the tooltip from an element's "title" attribute? I'd like it if the tooltip appeared immediately, but it seems to take a few seconds to apear.
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In Gradle, is there a better way to get Environment Variables?
... Be aware that "$System.env.FOO" returns String with value "null", if the environment variable FOO is not defined as a system environment variable. It might be confusing since logging a String with value "null" to console will print the same output as null variable.
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How to add onload event to a div element
...ng on the usage it is not better to put it in front of </body>. f.e. if you want to hide the <div> only if javascript is enabled but avoid "flashing". The visibility time depends on how long the browser needs to load/parse all inline/external scripts.
– mgutt
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Merging two arrays in .NET
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If you can manipulate one of the arrays, you can resize it before performing the copy:
T[] array1 = getOneArray();
T[] array2 = getAnotherArray();
int array1OriginalLength = array1.Length;
Array.Resize<T>(ref array1, a...
Why historically do people use 255 not 256 for database field magnitudes?
...oose to use a single byte to indicate the length of the data in the field. If the limit were 256 or greater, two bytes would be needed.
A value of length zero is certainly valid for varchar data (unless constrained otherwise). Most systems treat such an empty string as distinct from NULL, but some ...
What is the difference between 127.0.0.1 and localhost
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Well, the most likely difference is that you still have to do an actual lookup of localhost somewhere.
If you use 127.0.0.1, then (intelligent) software will just turn that directly into an IP address and use it. Some implementations of gethostbyn...
C# generic “where constraint” with “any generic type” definition?
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Ok, but what should I do if I need to use my generic type T inside the IGarage<TCar>? I can't see any possibility in option2. The best solution would be if IGarage<TCar> found type T by analysing type TCar.
– pt12lol...
Why does this iterative list-growing code give IndexError: list assignment index out of range?
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for l in i:
j.append(l)
Of course, you'd never do this in practice if all you wanted to do was to copy an existing list. You'd just do:
j = list(i)
Alternatively, if you wanted to use the Python list like an array in other languages, then you could pre-create a list with its elements set ...
How do you remove the title text from the Android ActionBar?
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@domji84, You can specify the theme of each activity in the manifest file.
– ashishduh
Jan 15 '14 at 17:42
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