Java Code Convention or Style Guide

Almost all organizations either adopt the coding style from someone else or develop their own one. Newly recruited employees as well as interns may be expected to following the existing code convention or style guide of the company. If you are starting your own company, you may wish to adopt or develop your own one based on one of the available ones. Some examples are:

Java Code Convention / Style Guide

Oracle/Sun
1999:
https://www.oracle.com/technetwork/java/codeconvtoc-136057.html

1997:
https://www.oracle.com/technetwork/java/codeconventions-150003.pdf


OpenJDK:
http://cr.openjdk.java.net/~alundblad/styleguide/index-v6.html


Google:
https://google.github.io/styleguide/javaguide.html


Android:
https://source.android.com/setup/contribute/code-style


Facebook:
https://github.com/facebook/jcommon/wiki/Coding-Standards


Twitter:
https://github.com/twitter/commons/blob/master/src/java/com/twitter/common/styleguide.md


Mozilla:
https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Coding_Style#Java_practices


Spring Framework:
https://github.com/spring-projects/spring-framework/wiki/Code-Style



CMU SEI:
https://wiki.sei.cmu.edu/confluence/display/java/Java+Coding+Guidelines
https://wiki.sei.cmu.edu/confluence/display/java

See also:

Python Style Guide or Code Convention

https://annajiat.blogspot.com/2020/08/python-code-convention-or-style-guide.html

Sharing PC/Laptop Internet via WiFI or creating WiFi hotspot

The following steps discusses about sharing LAN Internet connectivity from laptop or desktop with wifi/wlan card. to other laptops / phones

1. open cmd in administrative mode
2. To start the network, copy paste the following two lines

netsh wlan set hostednetwork mode=allow ssid=MyWiFi key=MyPasswordHere

netsh wlan start hostednetwork



To stop the network, copy paste the following line

netsh wlan stop hostednetwork



to connect to it, use the following from phone or other laptops
Wifi name (SSID):
MyWiFi

password:
MyPasswordHere

How to choose a research or thesis topic

As-salamu Alaikum,

Often we struggle to choose a thesis topic or research area. The following links might help as a starter:

TOPIC

What areas are there in Computer Science?
http://en.wikipedia.org/wiki/Computer_science#Areas_of_computer_science

 

Computers are used to solve problems in many domains: Computational Sciences

https://en.wikipedia.org/wiki/Computational_science

 

Computer Science hot research topics

https://www.google.com/search?q=computer+science+hot+research+topics&safe=active&source=lnt&tbs=qdr:y

 

Computer Science Undergraduate Theses
https://www.google.com/search?q=computer+science+undergraduate+theses&safe=active&source=lnt&tbs=qdr:y

 

Computer Science Graduate Theses

https://www.google.com/search?q=computer+science+graduate+theses&safe=active&source=lnt&tbs=qdr:y


METHODS
How to select a Computer Science thesis topic?

http://lmgtfy.com/?q=how+to+choose+cs+OR+%22computer+science%22+thesis+topic

 

How to select a thesis topic?

http://lmgtfy.com/?q=how+to+choose+thesis+topic


See also

Research Guide
http://annajiat.googlepages.com/research-guide

Mathematics in Computer

What Every Computer Scientist Should Know About Floating-Point Arithmetic
https://docs.oracle.com/cd/E19060-01/stud8.compiler/817-0932/ncg_goldberg.html


SUN Numerical Computation Guide

https://docs.oracle.com/cd/E19060-01/stud8.compiler/817-0932/index.html

https://en.wikipedia.org/wiki/IEEE_754

https://steve.hollasch.net/cgindex/coding/ieeefloat.html

Workaround for malfunctioning battery level detection

No action / do nothing when battery reaches ctricital level as a workaround for malfunctioning battery level detection

Windows:
powercfg -setdcvalueindex SCHEME_CURRENT SUB_BATTERY BATACTIONCRIT 0
powercfg -setacvalueindex SCHEME_CURRENT SUB_BATTERY BATACTIONCRIT 0

or,
POWERCFG /SETDCVALUEINDEX SCHEME_CURRENT SUB_BATTERY BATACTIONCRIT 0
POWERCFG /SETACVALUEINDEX SCHEME_CURRENT SUB_BATTERY BATACTIONCRIT 0

source:
https://superuser.com/a/1175864/500845


Linux:
https://askubuntu.com/questions/378440/how-to-avoid-shutdown-on-critical-battery
https://forums.linuxmint.com/viewtopic.php?t=201336
https://askubuntu.com/questions/210623/modify-actions-when-battery-is-critically-low

Proxy / Network Configuration Tool

Setup proxy and other network settings

Linux:
https://www.cyberciti.biz/faq/linux-unix-set-proxy-environment-variable/
https://askubuntu.com/questions/279904/export-http-proxy-where-does-the-proxy-setting-get-stored

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-network_config_using_cli
https://www.swiftstack.com/docs/install/configure_networking.html
https://www.howtogeek.com/118337/stupid-geek-tricks-change-your-ip-address-from-the-command-line-in-linux/
https://www.tecmint.com/ifconfig-command-examples/


Windows:
https://support.microsoft.com/en-us/help/900935/how-the-windows-update-client-determines-which-proxy-server-to-use-to
https://superuser.com/questions/489527/how-can-i-configure-proxy-settings-for-all-apps-system-ie-etc
https://www.techrepublic.com/article/10-things-you-should-know-about-the-netsh-tool/
https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/cc731131(v=ws.10)#BKMK_5

Example:
http://support.immunet.com/index.php?/topic/3088-immunet5-clamav-proxy/

Using Online javadoc, Java Documentation

Note: Your feedback on how to improve this article is most welcome.

It may not be wise to use old javadoc for example,
http://docs.oracle.com/javase/7/docs/api/java/lang/Math.html

Even though this is what our search engine shows first, usually.
However, methods may change from version to version, 
some times they are added,
removed or behavior may change.
Hence always use java doc (documentation) for the latest JDK

How to ensure that google gives result from javadoc for JDK 8?
Here are some interesting ways, just mention java 8 in your search.
Say, we want to search on math class. then write

java 8 math docs
http://www.google.com/search?q=java+8+math+docs

or like,
java 8 api math
http://www.google.com/search?q=java+8+api+math

It does not mean codes vary in different versions of JDK.
Mostly it does not. Codes are usually backward and forward (future) compatible.
However, things do change, slowly. Some of existing code may get
deprecated. There could be changes in behavior.

We should always try to use the latest version because better ways of
doing things may have been introduced and we want our code to keep
working in future JDKs as well.

Recommended Reading:
http://mindprod.com/jgloss/deprecated.html
http://docs.oracle.com/javase/8/docs/technotes/guides/javadoc/deprecation/deprecation.html