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Set icon for Android application
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You may then define the icon in your AndroidManifest.xml file as such:
<application android:icon="@drawable/icon_name" android:label="@string/app_name" >
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</application>
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Is 'float a = 3.0;' a correct statement?
...* 0.42f; } // OK, no conversion required
To avoid bugs when comparing results:
e.g. the following comparison fails :
float x = 4.2;
if (x == 4.2)
std::cout << "oops"; // Not executed!
We can fix it with the float literal notation :
if (x == 4.2f)
std::cout << "ok !"; // Execu...
How should I use try-with-resources with JDBC?
...ent up front so you don't have to refer to a separate method:
public List<User> getUser(int userId) {
String sql = "SELECT id, username FROM users WHERE id = ?";
List<User> users = new ArrayList<>();
try (Connection con = DriverManager.getConnection(myConnectionURL);
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How does Django's Meta class work?
...l? i.e., does Django's Meta inner class prevent you from using Python's builtin metaclass features?
– nnyby
Mar 3 '15 at 20:00
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“This project is incompatible with the current version of Visual Studio”
...ion from "v4.5" to "v4.0". That at least allows the project to be loaded, although it may result in compiler errors if the program is dependent on 4.5 features.
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Rails select helper - Default selected value, how?
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This should do it:
<%= f.select :project_id, @project_select, :selected => params[:pid] %>
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input type=“text” vs input type=“search” in HTML5
...w form input fields. When I'm working with form input fields, especially <input type="text" /> and <input type="search" /> IMO there wasn't any difference in all major browser including Safari, Chrome, Firefox and Opera. And the search field also behaves like a regular text field.
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Embedding DLLs in a compiled executable
...Install the package and you're done. It even compresses assemblies by default.
– Daniel
Dec 19 '13 at 15:40
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Why isn't there a Guid.IsNullOrEmpty() method
...n method for all value types. For example: public static bool IsNullOrDefault<T>(this T? self) where T : struct { return !self.HasValue || self.Value.Equals(default(T)); }
– Jeppe Stig Nielsen
Sep 7 '13 at 22:27
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What do single quotes do in C++ when used on multiple characters?
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It's a multi-character literal. 1952805748 is 0x74657374, which decomposes as
0x74 -> 't'
0x65 -> 'e'
0x73 -> 's'
0x74 -> 't'
Edit:
C++ standard, §2.14.3/1 - Character literals
(...) An ordinary character literal that c...