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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 can I concatenate two arrays in Java?

I need to concatenate two String arrays in Java. void f(String[] first, String[] second) { String[] both = ??? } Which is the easiest way to do this?
Antti Kissaniemi
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Add a column to a table, if it does not already exist

I want to write a query for MS SQL Server that adds a column into a table. But I don't want any error display, when I run/execute the following query. I am using this sort of query to add a table ... IF EXISTS ( SELECT * FROM …
Tavousi
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momentJS date string add 5 days

i have a start date string "20.03.2014" and i want to add 5 days to this with moment.js but i don't get the new date "25.03.2014" in the alert window. here my javascript Code: startdate = "20.03.2014"; var new_date = moment(startdate,…
Dave
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Can I split an already split hunk with git?

I've recently discovered git's patch option to the add command, and I must say it really is a fantastic feature. I also discovered that a large hunk could be split into smaller hunks by hitting the s key, which adds to the precision of the…
greg0ire
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How to add hours to current time in python

I am able to get the current time as below: from datetime import datetime str(datetime.now())[11:19] Result '19:43:20' Now, I am trying to add 9 hours to the above time, how can I add hours to current time in Python?
Shiva Krishna Bavandla
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How to add an integer to each element in a list?

If I have list=[1,2,3] and I want to add 1 to each element to get the output [2,3,4], how would I do that? I assume I would use a for loop but not sure exactly how.
user1212818
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Git: add vs push vs commit

What is the difference between git add, push and commit? Just a little confused coming from SVN, where "update" will 'add' stuff, and commit does a "push" and will 'add' as well There are all different functions within git. Hoping for some…
CQM
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What is the difference between the add and offer methods in a Queue in Java?

Take the PriorityQueue for example http://java.sun.com/j2se/1.5.0/docs/api/java/util/PriorityQueue.html#offer(E) Can anyone give me an example of a Queue where the add and offer methods are different? According to the Collection doc, the add method…
Finbarr
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What's the difference between array_merge and array + array?

A fairly simple question. What's the difference between: $merged = array_merge($array1, $array2); and $merged = $array1 + $array2; ?
The Pixel Developer
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Add a new item to recyclerview programmatically?

I'm still trying to get my head around recyclerview. I have an arraylist, that I use to initialize a recycler view with. How can I add new items to the recycler view post setting an adapter and layoutmanager? private void initData() { …
Shubham Kanodia
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Add onclick event to newly added element in JavaScript

I have been trying to add onclick event to new elements I added with JavaScript. The problem is when I check document.body.innerHTML I can actually see the onclick=alert('blah') is added to the new element. But when I click that element I don't see…
Desolator
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How to force JS to do math instead of putting two strings together

I need javascript to add 5 to an integer variable, but instead it treats the variable as a string, so it write out the variable, then add 5 onto the end of the "string". How can I force it to do math instead? var dots =…
Sean
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How to add new column to MYSQL table?

I am trying to add a new column to my MYSQL table using PHP. I am unsure how to alter my table so that the new column is created. In my assessment table I have: assessmentid | q1 | q2 | q3 | q4 | q5 Say I have a page with a textbox and I type q6…
Steven Trainor
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In Java, is the result of the addition of two chars an int or a char?

When adding 'a' + 'b' it produces 195. Is the output datatype char or int?
orange
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How to combine the sequence of objects in jq into one object?

I would like to convert the stream of objects: { "a": "green", "b": "white" } { "a": "red", "c": "purple" } into one object: { "a": "red", "b": "white", "c": "purple" } Also, how can I wrap the same sequence into an array? [ { …
Jennifer M.
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