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How to debug stream().map(…) with lambda expressions?
...sually have no problem debugging lambda expressions while using Eclipse or IntelliJ IDEA. Just set a breakpoint and be sure not to inspect the whole lambda expression (inspect only the lambda body).
Another approach is to use peek to inspect the elements of the stream:
List<Integer> natur...
How to construct a REST API that takes an array of id's for the resources
...bly one of the closest to the concept since it accomplishes all the constraints described here: en.wikipedia.org/wiki/…. You would only use CSV to represent arrays in requests, while the service responses should be serialized using XML or JSON. Are there any particular reasons why you don't consid...
Best practices for overriding isEqual: and hash
...
Start with
NSUInteger prime = 31;
NSUInteger result = 1;
Then for every primitive you do
result = prime * result + var
For objects you use 0 for nil and otherwise their hashcode.
result = prime * result + [var hash];
For boolean...
How can I do test setup using the testing package in Go
...
Given a simple function to unit test:
package math
func Sum(a, b int) int {
return a + b
}
You can test it with a setup function that returns teardown function. And after calling setup() you can make a deferred call to teardown().
package math
import "testing"
func setupTestCase(t...
Failed binder transaction when putting an bitmap dynamically in a widget
... caused because all the changes to the RemoteViews are serialised (e.g. setInt and setImageViewBitmap ). The bitmaps are also serialised into an internal bundle. Unfortunately this bundle has a very small size limit.
You can solve it by scaling down the image size this way:
public static Bitmap s...
How to get a pixel's x,y coordinate color from an image?
... 4) {
console.log pix[i+3]
}
This will go row by row, so you'd need to convert that into an x,y and either convert the for loop to a direct check or run a conditional inside.
Reading your question again, it looks like you want to be able to get the point that the person clicks on. This can be d...
Why is MATLAB so fast in matrix multiplication?
... 0.0229
>> gputimeit(@()gA*gA)
ans =
4.8019e-04
(NB: at some point (I forget when exactly) gpuArray switched from MAGMA to cuBLAS - MAGMA is still used for some gpuArray operations though)
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What do two question marks together mean in C#?
...e an expression is a method call with side effects. (Credit to @Joey for pointing this out.)
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What is difference between functional and imperative programming languages?
...guage. For example, a program can be created to add a series of numbers:
int total = 0;
int number1 = 5;
int number2 = 10;
int number3 = 15;
total = number1 + number2 + number3;
Each statement changes the state of the program, from assigning values to each variable to the final addition of ...
How to make a window always stay on top in .Net?
...ion, anyway.
First, import the following namespace:
using System.Runtime.InteropServices;
Add a few variables to your class declaration:
private static readonly IntPtr HWND_TOPMOST = new IntPtr(-1);
private const UInt32 SWP_NOSIZE = 0x0001;
private const UInt32 SWP_NOMOVE = 0x0002;
private cons...