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In Java, what is the best way to determine the size of an object?

...te static Instrumentation instrumentation; public static void premain(String args, Instrumentation inst) { instrumentation = inst; } public static long getObjectSize(Object o) { return instrumentation.getObjectSize(o); } } Add the following to your MANIFEST.MF: P...
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Is there a MySQL command to convert a string to lowercase?

...se the functions LOWER() or LCASE(). These can be used both on columns or string literals. e.g. SELECT LOWER(column_name) FROM table a; or SELECT column_name FROM table a where column = LOWER('STRING') LCASE() can be substituted for LOWER() in both examples. ...
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Moment.js transform to date object

...e linking and referring to is a separate issue and scenario, e.g passing a string into the moment constructor moment("12/12/2011") is where you would get that message. It has nothing to do with going from moment to date obj moment().toDate() – btbJosh Nov 15 '1...
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Converting SVG to PNG using C# [closed]

...t("kernel32.dll", SetLastError = true)] static extern bool SetDllDirectory(string pathname); [DllImport("libgobject-2.0-0.dll", SetLastError = true)] static extern void g_type_init(); [DllImport("librsvg-2-2.dll", SetLastError = true)] static extern IntPtr rsvg_pixbuf_from_file_at_size(string fil...
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How to Validate a DateTime in C#?

...x.Text, out value)) { startDateTextox.Text = DateTime.Today.ToShortDateString(); } Reasons for preferring this approach: Clearer code (it says what it wants to do) Better performance than catching and swallowing exceptions This doesn't catch exceptions inappropriately - e.g. OutOfMemoryExcep...
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Round a double to 2 decimal places [duplicate]

... want to use BigDecimal. And while at it, use the constructor that takes a String, never the one taking double. For instance, try executing this: System.out.println(new BigDecimal(1.03).subtract(new BigDecimal(0.41))); System.out.println(new BigDecimal("1.03").subtract(new BigDecimal("0.41"))); S...
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How do I use DateTime.TryParse with a Nullable?

I want to use the DateTime.TryParse method to get the datetime value of a string into a Nullable. But when I try this: 9 A...
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Underlining text in UIButton

...lso override the setTitle method like so : objective-c - (void)setTitle:(NSString *)title forState:(UIControlState)state { [super setTitle:title forState:state]; [self setNeedsDisplay]; } – Kirualex Oct 14 '13 at 15:41 ...
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Eclipse Kepler for OS X Mavericks request Java SE 6

... then replace <key>JVMCapabilities</key> <array> <string>CommandLine</string> </array> with the following: <key>JVMCapabilities</key> <array> <string>JNI</string> <string>BundledApp</string> <string>Co...
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Is there a recommended way to return an image using ASP.NET Web API

...ageName}, {width} and {height} parameters. public HttpResponseMessage Get(string imageName, int width, int height) { Image img = GetImage(imageName, width, height); using(MemoryStream ms = new MemoryStream()) { img.Save(ms, System.Drawing.Imaging.ImageFormat.Png); HttpR...