arrays

Is there a way to avoid @SuppressWarnings in this code?

Is there a way to avoid using @SuppressWarnings below and to keep the same functionality without the warning 'Type safety: Unchecked cast from AbstractDO[] to E[]': public MyClass { ... private Map<Class<? extends AbstractDO>, AbstractDO[]> map; ... private void saveConcreteDOs(AbstractDO[] theEntities) { entityMap.p...

Best way to sort an array in PHP using a key-function?

usort and uasort use a comparison function which is slow because it must be computed every time a comparison is needed between to elements of an array. Other languages, like Python, let you sort an array using a key function which gets evaluated only once per element in the array. What's the best way to do this in PHP? ...

Arrays of strings in C

I need to hold an array of C strings. Now I know C strings are just an array of chars so essentially what I want is a 2d array of chars. The strings I'm trying to store will also never exceed 6 characters. My plan is to initialize a char array with 50 "string slots" and then if I hit 50 strings reallocate the array's memory to double it'...

Generic Array Creation vs Array.newInstance()

I'm writing a class which has two ArrayList fields. One is for containing custom objects. The other is for containing custom collection objects (which may also have these fields): private ArrayList<SomeClass> myObjList; // Just objects private ArrayList<SomeCollectionClass> myCollectionList; // Collections of objects ...

jQuery: Looping over elements writing their ID attribute to an array?

Hello, I'm trying find a bunch of <label>s in a form of mine based on an array of elements and their id attribute. eg. [ input#country , input#other-country ] would be able to find <label for="country"> , <label for="other-country"> and so on… so far I have this code: var LOCATION = {}; LOCATION.option = form.find('input[name=locati...

help troubleshooting foreach loop in php

I need help trying to figure out how to set my 2nd condition ($column == 'Status) in this foreach loop as it is not using my color_array. I created an array color_array for setting values to a particular color: $color_array = array( 'Succeeded' => 'blue', 'Failed' => 'red', 'Review Logs' => 'y...

Consolidating overlapping sets from an array of sets

I have an array with each entry containing a minimum and a maximum value for a bunch of sets such as the one below: Array ( [0] => Array ( [0] => 1200 [1] => 2400 ) [1] => Array ( [0] => 1400 [1] => 3800 ) [2] => Array ( [0...

Arraylist in C.

HELLO WORLD, GUYS!!! I am currently writing a program to implement an arraylist (or dynamic array) in C. Hmm... I think I have 70 - 80% done with it, however, I found a serious problem with my codes when testing them on a couple of machines. Briefly, I inserted a group of strings( char* ) into my arraylist, and tried to get and display...

How to combine multiple arrays with identical keys into a single array ?

hi to all. I am new to php. I need some help. I had a array as Array ( [_] => Array ( [0] => [1] => ) [123_] => Array ( [0] => 123 [1] => ) [1234_] => Array ( [0] => 1234 [1] => ) ) Array ( [_] => Array ( [0] => [1] => ) [12345_] => Array ( [0] => 12345 [1] => ) [1234_] => Array ( [0] => 1234 [1]...

What is the javascript equivalent of the PHP auto-assigning array feature?

I am trying to automatically update a javascript array, without specifying a number or string for the key. The value should just take up the next numeric key in the array. In php you can do this: <? myarray = array(); myarray[] = '1'; myarray[] = '2'; myarray[] = '3'; //this is equivalent to myarray[1] = '1', myarray[2] = '2', myarra...

How to convert every two consecutive values of an array into a key/value pair?

I have an array like the following: array('category_name:', 'c1', 'types:', 't1') I want the alternate values of an array to be the values of an array: array('category_name:' => 'c1', 'types:' => 't1') ...

Sorting an Array error ?

Hello, I'm trying to sort an array, from a previous post I was pointed to an answer in this thread, http://stackoverflow.com/questions/1422840/sorting-an-array-of-doubles-or-cllocationdistance-values-on-the-iphone/1422881#1422881 Based of this my code is as follows: NSArray *sortedArray = [listArray sortedArrayUsingFunction:intSort co...

Help understanding a php function - the meaning of $array[]; the [] part.

private function jsonArray($object) { $json = array(); if(isset($object) && !empty($object)) { foreach($object as $obj) { $json[]["name"] = $obj; } } return $json; } We are grabbing an object, and if the conditional is met, we iterate over that object. Then... I'm lost on this reading... :s Wh...

Redefine / resize C array in Objective C?

I have a C array in Objective C defined as follows: id keysArray; Then in an if block, i would like to redefine the array based on a condition: if (somethingIsTrue){ id keysArray[4][3]; } else { id keysArray[6][1]; } Then outside of the if block, when i access the array, i get errors saying the keysArray does not exist. Th...

Understand PDO fetch and fetchAll iteration with foreach

With this: private function jsonArray($object) { $json = array(); if(isset($object) && !empty($object)) { foreach($object as $obj) { ... } } return $json; } We iterate over an object with success. We use PDO::fetch[FETCH_OBJ] and it works. What if, we want to iterate over an array of objects like the on...

Using System.IO.StreamWriter to write another line

I need to update the students score with a new score but I cant get it to write to the line that the students current score it at. It just deletes the whole text. Alex,letmein,0 David,qwerty1,0 John,password,0 Paul,lion,0 Luke,bennett,0 Ronald,Mcdonald,0 Erin,german,0 Laura,Scotland,0 Ross,extra,0 Alan,beverage,0 Try fileName = "C:\Do...

Fill sparse array

I have a sparse array, for example: rare = [[0,1], [2,3], [4,5], [7,8]] I want to plot a chart with these data, each pair are point coordinates. As you can see I don't have points for x=1, x=3 , x=5, x=6 I want to fill the array with the previous values, so for the above example I will get: filled = [[0,1], [1,1], [2,3], [3,3], [4,5...

Fortran90 Error: EXTERNAL attribute conflicts with DIMENSION attribute

I've written a function which calculates the eigenvalues of a 2*2 matrix. It takes a 2*2 matrix as an argument and returns 2 eigenvalues via a 2-element array. I have declared the function in the program unit like this: real, dimension(2), external :: eigenvalues But it won't compile, it comes up with this error: Error: EXTERNAL attr...

How do I replace each item, without changing array's structure?

$array = array('lastname', 'email', 'phone'); How do I run foreach for this array and write updated value to its place? Like: foreach ($array as $item) { // do something // replace old value of this item with a new one } Example: foreach ($array as $item) { if (item == 'lastname') $item = 'firstname'; /...

How can I get the total of specific array elements?

I have a function that adds shopping cart data to an array of arrays. The array looks like this: Array ( [0] => Array ( [TypeFlag] => S [qty] => 2 [denom] => 50 [certMessage] => [totalPrice] => 100 ) [1] => Array ( [TypeFlag] => S [qty] => 1 [denom] => 25 [certMessage] => [totalPrice] => 25 ) ) What I need to do is get the total p...