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What is an OS kernel ? How does it differ from an operating system? [closed]
...esn't match that definition.
So for an end-user a Linux distribution (say Ubuntu) is an Operating System while for a programmer the Linux kernel itself is a perfectly valid OS depending on what you're trying to achieve. For instance embedded systems are mostly just kernel with very small number of ...
How to write to a JSON file in the correct format
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To make this work on Ubuntu Linux:
I installed the Ubuntu package ruby-json:
apt-get install ruby-json
I wrote the script in ${HOME}/rubybin/jsonDEMO
$HOME/.bashrc included:
${HOME}/rubybin:${PATH}
(On this occasion I also typed the abov...
Differences between Intent and PendingIntent
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Intent
An Android Intent is an object carrying an intent, i.e. a message from one component to another component either inside or outside of the application. Intents can communicate messages among any of the three core components of an...
How to determine day of week by passing specific date?
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Android only implements LocalDate after API 26.
– Jacob Sánchez
Sep 22 '19 at 1:06
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Set margins in a LinearLayout programmatically
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@ArtemRussakovskii Like most functions in Android, they take pixels. I suggest a global utility function that converts dips to px. This is what I have done in all my apps. Android API sucks.
– mxcl
Jan 26 '12 at 12:00
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HashMap and int as key
...ust a quick little note, it is better to use ArrayMap or SimpleArrayMap on Android to save memory and increase performance(More information)
– Noah Huppert
Jun 8 '15 at 21:06
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Virtual Memory Usage from Java under Linux, too much memory used
... any swap was reported, so booted my "traveling Linux" (a thumb drive with Ubuntu 10.04 and no swap). When I enabled the "SWAP" column in top, I saw Eclipse had 509m. When I then looked at it with pmap, the total virtual space was 650m. So I suspect that the "SWAP" figure represents all on-disk page...
How to set background color of a View
...tton itself. This background is a StateListDrawable, which you can find in android-2.1/data/res/drawable/btn_default.xml in your Android SDK installation. That, in turn, refers to a bunch of nine-patch bitmap images, available in multiple densities. You would need to clone and modify all of that to ...
Creating a new user and password with Ansible
I have an ansible task which creates a new user on ubuntu 12.04;
22 Answers
22
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【PM干货】2015年阿里业务型PM笔试题 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...型PM笔试题一、客观题（总共十题）下面那个文件是用户系统间的数据传输：1、UML2、HTML3、XML4、WML458、346、908、739、（）正方体六个面分别是红、...一、客观题（总共十题）
下面那个文件是用户系统间的数据传输：
1、UML 2...