Sunday, September 25, 2016
Saturday, August 27, 2016
DIFFERENCE BETWEEN UNALIGNED AND NORMAL DEBUG APK FILE
You can find the unaligned apk file here \app\build\outputs\apk
http://stackoverflow.com/questions/22058210/why-unaligned-apk-is-needed
http://stackoverflow.com/questions/22058210/why-unaligned-apk-is-needed?noredirect=1&lq=1
Thursday, July 21, 2016
ANDROID STUDIO SHORTCUTS
Android studio Shortcuts
| Reformat code | OPTION + CMD + L |
| Show selected API documentation | F1 / FUNCTION + F1 |
| Generate Source Code | CMD + N |
| Jump to source | CMD + DOWN ARROW KEY |
| Delete Line | CMD + BACKSPACE |
| Search by symbol name | OPTION + CMD + O |
| Build | CMD + F9 |
| Build and Run | CTRL + R |
| Toggle Project Sidebar Visibility | CMD + 1 |
| Open Class | CMD + O |
| Open File ( including resources) | CMD + SHIFT + O |
| Recent Files Opened | CMD + E |
| Recently edited files | CMD + SHIFT + E |
| Previous Next/Previous Error | F2 / FUNCTION F2 |
| Last Edited Location | CMD + SHIFT + BACKSPACE |
| Last Location | CMD + [ and CMD + ] |
| Go to Declaration | CMD + B |
| Go to Super | CMD + Y |
| Next Word Navigation | ALT + LEFT/RIGHT ARROW KEY |
| Find | CMD + F |
| Find in Path | SHIFT + CMD + F |
| Refactor Class, Method | CTRL + T |
MAC KEYBOARD SHORTCUTS
MAC Keyboard shortcuts
1)Force Quit Applications(like Ctrl+Alt+Delete) in Windows==> Command+Option+Esc
1)Force Quit Applications(like Ctrl+Alt+Delete) in Windows==> Command+Option+Esc
2)Spotlight Search==>Command+Space
3)Diagnose Wifi Problem==> Option+Wifi
4)Right Click==>Option+Click
5)Specific volume==>Option+Shift+Volume Up/Volume Down
6)Create a new folder with all the selected items==>Command+Ctrl+N
7)Background tab==>Command+Click
8)Unformatted Text==>Command+Shift+V
or Option+Command+Shift+V
9)To Lock Mac==>Command+Shift+Power Button
10)Cutting==>Option+Command+V
Friday, November 28, 2014
HISTORY OF COMPUTERS
History of computers
I've been struggling to know the first computer that ever
existed on earth..what is the first computer?? How it looked like? or is it a
term that emerged from calculator?This is the question that haunts many
computer students including me..
The answer to this question can be explained in different
ways:But a simple answer is
Computer was actually a "job title" given to
people,which is used to describe those human beings(predominantly women)whose
job was to perform repetitive calculations in tide charts,navigation tables and
planetary positions for astronomical almanacs.
Hour after hour and day after day if we were given
such heinous tasks to perform calculations repetitively..what will happen?? The
work will be "Boring" we become "Careless" and this leads
to mistakes i.e., we provide "inaccurate" data and we don't get the
results very fastly!! So investors have been searching for a way to mechanize
this work!! That is the reason why computers have been invented..Earlier there
used to be mechanical computers and later electronic computers have come into
existence!!C PROGRAMMING LANGUAGE
Denis Ritchie,The inventor of C Programming Language
Writing about C makes
me feel nostalgic as it brings back memories of my good old high school days
where we used to have a "computers lab" where they used to teach us
LOGO,BASIC and C.I feel C is the simplest & dearest of all..It is the first
step towards learning a high-level programming language. There is this little
tiny book which taught us fundamentals in C..Later in engineering 1st year,it
is a common subject for all the streams be it cse,ece,eee or mech..The
prescribed text book is this big book with a white cover THE C PROGRAMMING
LANGUAGE 2ND EDITION BRIAN KERNINGHAM & DENIS RITCHIE..Most of the CBSE
students who come to engg colleges are also familiar with this langauge..as i
have seen my cousins learning this language from a very popular book titled
"LET US C" by a very famous indian author YASHWANT KANETKAR...Its
learnt by everyone,so most of the engineering students in india know this language..it
is thus a popular high-level language.It basically got popularity because it is
used in UNIX,a beautiful operating sytem:) used in mainframes..(not to mention
it is learnt by the most famous people ever to live on earth who know not
construction but only destruction-HACKERS as i've heard that they write viruses
using C..i don't know whether its true or not..if its true,denis ritchie would
have certainly felt bad for creating something that hacker dementors can use to
create their weapons) Ok now coming back to C,Lets C..
C is a
middel-level,general-purpose computer programming language developed in 1972 by
Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix
operating system..Most of the Programmers love C as it has several advantages
such as:
- C is used in writing system programs.
- We can use it on various platforms for writing codes as it is very versatile in writing code for microcontrollers,modern operating systems and many advanced scientific systems.
- It is a procedural language where everything in the form of modules..That is a very big function is broken down into small modules which perform small tasks..Hence C is also called modular language and hence C is necessary to understand C++,an object oriented programming language which is an extension to C.
- It can be used as a low level or high level language...If we interpreting hardware using c we r using it as low level language or if we doing normal programming to create software then using it as high level language.
- It has no strict type checking:)
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