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Questions tagged [addition]

Addition is a mathematical operation that represents combining collections of objects together into a larger collection. It is signified by the plus sign (+).

Addition is a mathematical operation that represents combining collections of objects together into a larger collection. It is signified by the plus sign (+).

It is commutative, meaning that order does not matter, and it is associative, meaning that when one adds more than two numbers, order in which addition is performed does not matter.

(Wikipedia)

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How to use ArrayList.addAll()?

I want to fill an ArrayList with these characters +,-,*,^ etc. How can I do this without having to add every character with arrayList.add()?
masb
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How to Install Older iOS Simulators in XCode 4.2.1 (SDK5.0)

I have just bought a new iMac. I then downloaded the latest SDK 5.0 and installed XCode 4.2.1. Everything is working fine. Though I realized that there are only iPhone and iPad Simulators 5.0 available for debugging. So I went on clicking the More…
GeneCode
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How to add same view to parent multiple times by inflating it only once

I have a LinearLayout with vertical orientation as parent, I want to add some view programmatically multiple times to this parent. Right now I am inflating the child every time getting new references to every UI element before adding to parent. This…
mkso
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Dynamically add textViews to a linearLayout

I read this somewhere here and I totally lost it, but could use some assistance. My app is pulling the column names from sqlite into an array. I want to create a textview and edit text for each one (via the size of the array), and I remember reading…
Anthony Honciano
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ListView with Add and Delete Buttons in each Row in android

I am developing an android application in which I have made one ListView. I have to add 2 buttons with each row in ListView. These 2 buttons are Add and Delete. When user selects one of the buttons then some actions should be taken. How can I do it?
Looking Forward
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Two children with the same key in React

Application works, my classes really adds a new element but I see below warning in console! Warning: Encountered two children with the same key, [object Object]. Keys should be unique so that components maintain their identity across updates.…
Nikola Lukic
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What is the best way to add two numbers without using the + operator?

A friend and I are going back and forth with brain-teasers and I have no idea how to solve this one. My assumption is that it's possible with some bitwise operators, but not sure.
user23126
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How we can add two date intervals in PHP

i want to add two date intervals to calculate the total duration in hours and minutes in fact i want to perform addittion as shown below: $a = new DateTime('14:25'); $b = new DateTime('17:30'); $interval1 = $a->diff($b); echo "interval 1 : " .…
Sheikh Rahat Ali
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adding multiple existing folders and multiple existing files to Visual Studio project in single step

Does anyone have a way to add multiple folders and (existing) files within those folders to a Visual Studio project in a single step (or via macro)? Let's assume all of the folders and files were copied/pasted into the project folder where they…
JustBeingHelpful
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How to undo all added files in Mercurial

Say I type hg add in Mercurial, and there a bunch of untracked files in my working directory that are not ignored. What is the easiest way to un-add all those files without explicitly typing the name of each file? Can I just un-add them all with one…
PICyourBrain
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Can I modify git-add's hunk size?

I have a file that I've been working on and then realized that I had a mistake in it a few lines above where I've been working. I quickly fixed the mistake and want to commit it before I commit the rest of my work. Great, this is where git add…
pr1001
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Why is OCaml's (+) not polymorphic?

I am an OCaml newbie. I like OCaml's speed but I don't fully understand its design. For example, I would like the + operator to be polymorphic to support integer, float and so on. Why do we need +.?
z_axis
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How add key to dictionary without value?

in normally we should add key and value together in dictionary type. like: myDict.Add(key1, value1); myDict.Add(key2, value2); I want to know, Is there any way to add key first, then insert its value? (not both of them at the same time)
Iran_Girl
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Magento remove css or js from specific view

Hi i added this to catalog.xml layout definition: css/local.css and this to inside the same file:
zsitro
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Time calculation in php (add 10 hours)?

I get the time: $today = time(); $date = date('h:i:s A', strtotime($today)); if the current time is "1:00:00 am", how do i add 10 more hours to become 11:00:00 am??
myphpsql00
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