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How to supply value to an annotation from a Constant java
...stant variables.
Actually in java there is no way to protect items in an array. At runtime someone can always do FieldValues.FIELD1[0]="value3", therefore the array cannot be really constant if we look deeper.
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Difference between class and type
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A class is a type. An interface is a type. A primitive is a type. An array is a type.
Therefore, every type is also either a class (including an enum constant), an interface, a primitive, or an array.
There are two distinct categories of types: primitive types and reference types:
A variab...
How to call a function from a string stored in a variable?
...an object's function whose name is in a variable do this: call_user_func( array($obj,$func), $params )
– BlackDivine
Nov 18 '11 at 11:38
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Heap vs Binary Search Tree (BST)
... explained in this answer
***: log(n) for pointer tree heap, n for dynamic array heap
Advantages of binary heap over a BST
average time insertion into a binary heap is O(1), for BST is O(log(n)). This is the killer feature of heaps.
There are also other heaps which reach O(1) amortized (stronge...
Can a Byte[] Array be written to a file in C#?
I'm trying to write out a Byte[] array representing a complete file to a file.
8 Answers
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What is the leading LINQ for JavaScript library? [closed]
... implementation lazy as in .NET Linq, they just evaluate immediately using arrays.
For a very nice, complete set of functional list operations, try: http://osteele.com/sources/javascript/functional/
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Parsing JSON array into java.util.List with Gson
... just need to get the Type of a List<String> and then parse the JSON array into that Type, like this:
import java.lang.reflect.Type;
import com.google.gson.reflect.TypeToken;
JsonElement yourJson = mapping.get("servers");
Type listType = new TypeToken<List<String>>() {}.getType()...
Sort NSArray of date strings or objects
I have an NSArray that contains date strings (i.e. NSString) like this: "Thu, 21 May 09 19:10:09 -0700"
9 Answers
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How to sort in-place using the merge sort algorithm?
.... It downgrades the performance to O(N2).
The idea is to sort part of the array while using the rest as working area for merging.
For example like the following merge function.
void wmerge(Key* xs, int i, int m, int j, int n, int w) {
while (i < m && j < n)
swap(xs, w+...
What do querySelectorAll and getElementsBy* methods return?
... querySelectorAll ) work the same as getElementById or do they return an array of elements?
10 Answers
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