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How to create a new object instance from a Type
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@KonradRudolph Ah sorry, misinterpreted "such an operation" to mean instantiating a type that's only known at runtime; instead of meaning using a runtime type as a generic type parameter.
– AnorZaken
May 31 '17 at ...
Find a pair of elements from an array whose sum equals a given number
Given array of n integers and given a number X, find all the unique pairs of elements (a,b), whose summation is equal to X.
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What is the memory consumption of an object in Java?
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Mindprod points out that this is not a straightforward question to answer:
A JVM is free to store data any way it pleases internally, big or little endian, with any amount of padding or overhead, though primitives must behave as if ...
Draw a perfect circle from user's touch
...it is not that hard to implement a simple, but yet useful solution without introducing all that complexity. (Please don't get me wrong, for any serious purpose it is better to use some mature and proven to be stable framework).
I will present my results first and then explain the simple and straigh...
Swift 编程语言入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...学习应该从打印"Hello, world"开始。在Swift，就是一行:
println("Hello, world")
如果你写过C或Objective-C代码，这个语法看起来很熟悉，在Swift，这就是完整的程序了。你无需导入(import)一个单独的库供输入输出和字符串处理。全局范...
How to Resize a Bitmap in Android?
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import android.graphics.Matrix
public Bitmap getResizedBitmap(Bitmap bm, int newWidth, int newHeight) {
int width = bm.getWidth();
int height = bm.getHeight();
float scaleWidth = ((float) newWidth) / width;
float scaleHeight = ((float) newHeight) / height;
// CREATE A MATRIX FO...
Getting Checkbox Value in ASP.NET MVC 4
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To convert a value returned from a check box in a form to a Boolean property I used the ValueProviderResult's in build converter in a custom ModelBinder.
ValueProviderResult cbValue = bindingContext.ValueProvider.GetValue("Ch...
Determining the size of an Android view at runtime
...nually:
view.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
int width=view.getMeasuredWidth();
int height=view.getMeasuredHeight();
If you know the size of the container:
val widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(maxWidth, View.MeasureSpec.AT_MOST)
val heigh...
Padding or margin value in pixels as integer using jQuery
...y just to do something that's already natively available!
jQuery's .css() converts %'s and em's to their pixel equivalent to begin with, and parseInt() will remove the 'px' from the end of the returned string and convert it to an integer:
http://jsfiddle.net/BXnXJ/
$(document).ready(function () {...
How to get the last date of a particular month with JodaTime?
...t when I was looking for this.
If someone needs the actual last day as an int instead using JodaTime you can do this:
public static final int JANUARY = 1;
public static final int DECEMBER = 12;
public static final int FIRST_OF_THE_MONTH = 1;
public final int getLastDayOfMonth(final int month, f...