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How do I address unchecked cast warnings?
...en affect the entire method.
Example:
@SuppressWarnings("unchecked")
Map<String, String> myMap = (Map<String, String>) deserializeMap();
There is no way to determine whether the Map really should have the generic parameters <String, String>. You must know beforehand what the pa...
Hidden Features of Java
...uter object which can cause nasty memory leaks. I'd recommend avoiding it altogether.
– ddimitrov
Oct 5 '08 at 13:05
51
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Using numpad in Vi (Vim) via PuTTY
...
I'd also love to know why it's not enabled by default. Does it break numpad usage in any other application? the.earth.li/~sgtatham/putty/0.60/htmldoc/… BTW disabling app keypad mode also fixes that "," is being entered in bash when you press numpad "+".
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Preserving order with LINQ
...f System.Linq.Enumerable, discarding any that returned non-IEnumerable results. I checked the remarks of each to determine how the order of the result would differ from order of the source.
Preserves Order Absolutely. You can map a source element by index to a result element
AsEnumerable
Cast
C...
Delete ActionLink with confirm dialog
...onfuse routeValues with htmlAttributes. You probably want this overload:
<%= Html.ActionLink(
"Delete",
"Delete",
new { id = item.storyId },
new { onclick = "return confirm('Are you sure you wish to delete this article?');" })
%>
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Bitwise operation and usage
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Bitwise operators are operators that work on multi-bit values, but conceptually one bit at a time.
AND is 1 only if both of its inputs are 1, otherwise it's 0.
OR is 1 if one or both of its inputs are 1, otherwise it's 0.
XOR is 1 only if exactly one of its inputs are 1...
HashSet versus Dictionary w.r.t searching time to find if an item exists
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I assume you mean Dictionary<TKey, TValue> in the second case? HashTable is a non-generic class.
You should choose the right collection for the job based on your actual requirements. Do you actually want to map each key to a value? If so, use Dict...
How to set dialog to show in full screen? [closed]
...utParams.MATCH_PARENT);
in addition , set the style of the dialog to :
<style name="full_screen_dialog">
<item name="android:windowFrame">@null</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowContentOverlay">@null&...
How to track down log4net problems
...
First you have to set this value on the application configuration file:
<configuration>
<appSettings>
<add key="log4net.Internal.Debug" value="true"/>
</appSettings>
</configuration>
Then, to determine the file in which you want to save the output you ca...
Accessing a Dictionary.Keys Key through a numeric index
I'm using a Dictionary<string, int> where the int is a count of the key.
15 Answers
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