About Me & MyBlog
Software Engineer | Polyglot Programmer | Gym Lover | Cyclist | Algorithm Addict | Programming and Research enthusiast | Life Long Passionate Learner | Love CSE, Backend and DataHi, thanks for your interest on my blog 🙂 I am Syed Ahmed Zaki, Founder of CodeLiftio! This is my blog “Zakilive.Com” for sharing my knowledge and passion with you all.
I was born in a beautiful country of south asia named Bangladesh. I am a Computer Science and Engineering graduate from Daffodil International University. I am passionate, dedicated, hardworking about my tasks and fond of Algorithms, Competitive Programming, Mathematics, Research in data science(Machine Learning, AI, NLP, Deep Learning), bioinformatics and IoT. I also love software engineering. In software development field I prefer Web Application Engineering.
In my Daffodil life I tried to participate in several programming contests(online, onsite, intra etc.) and passed some time in ACM training class for sharpening my logical skills. As an ordinary people it was little bit tough for me alongside with academic pressure, thesis and research paper writing but I love challenges so I always tried to push my limits though still I need to improve a lot in everything but I always trust in this quote “Hard work beats talent”. That quote I have learned from my life through bodybuilding of 6 years since 2012 and after losing 33 KG fat in 4 months from 101 KG I developed my fit physique, so I respectfully believe in this sentence and relate this with CSE field. I also love to learn from my failures. I hate excuses while working professionally and I love trying to finish my work with perfection till the last moment before deadline.
I also love to explore and play with new technologies and try to implement it with innovative ideas. In my university life, I always tried to learn from the basics of CS. So, I have tried to gather Networking to Database Knowledge, OS fundamentals to OOP etc. all fundamental core basics in my skillset in a practical approach.
Alongside with developing some web applications in core php and laravel framework I have also tried to build games with unity3d game engine, built 2 android apps, experimented machine learning with python, data mining with WEKA, AI chatbot, IoT based weather station and some more project works for my undergraduate courses. As I am language and platform agnostic, I enjoyed and learned a lot from all of these works. I also love teamwork. Alongside software engineering and different extra curricular activities I also love teaching. I am also proficient at working with linux and windows based OSes and I feel so lucky if I get chance to contribute in opensource projects. In my linkedin profile you will find more details about me.
However, I am actually a knowledge seeker and life long passionate learner who tries to make his weakness as strength, I was a serious student of all the courses in CS academia that can solve real life problems as I love to explore knowledge in a crafted manner. I love to study books, blogs or whatever philosophically solve my curiosity. For that, I maintain a good collection of various technological, scientific and philosophical books in my small library. Knowledge sharing, analytical thinking, practice and passing the passion of mine with you is one of my motivations for running this blog. I practice to hone my skills with trying to improve my programming and developing skillset day by day and what I learn, I never forget to share here for you.
In my free time I love to do cycling or gym or play racing games in my android phone or watch animated movies and also love to promote positive, fit and healthy lifestyle among people.
Connect with me:
Currently I am working with .NET technologies. If you have any opportunity/business to work with me or any other query kindly say just hi to me at my mail:
[email protected]
Category Archives: Interview
Interview Experience: Software Engineering Interview Guideline for Freshers in Bangladesh
Today given an interview for intern position so, I think they asked me some questions that is related to other interview which was Full Time Software Engineering Job I have faced. I have found an pattern for interview purpose in software engineering position in Bangladesh:
Maximum of them ask:
OOP Concept Basic like, What is class, What is Overriding and Overloading(Must be good at it, why it is needed), Polymorphism, Interface, Inherit etc.
Object Oriented Design – Design Pattern, SOLID priniciple
Algorithm Basics – All Sorting but Bubble Sort, Merge Sort, QuickSort, Binary Search Tree(BST) Is must to see first
Software Development Life Cycle(SDLC) Phases, UML Actors, and Scrum/Agile methodology
Basic SQL, Join, Normalization
-> Basic OS/RAM Related Questions-> Stack/Heap where actually program runs that knowledge
What is call by value and What is call by reference
content included in this blog link below must be finished and must be in head when needed anything: http://blog.devskill.com/%E0%A6%B8%E0%A6%AB%E0%A6%9F%E0%A6%93%E0%A7%9F%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%B0-%E0%A6%A1%E0%A7%87%E0%A6%AD%E0%A7%87%E0%A6%B2%E0%A6%AA%E0%A6%BE%E0%A6%B0%E0%A6%A6%E0%A7%87%E0%A6%B0-%E0%A6%9C%E0%A6%A8/
Posted in Fresher/Intern, Job
Overriding vs. Overloading in Java
Overriding code:
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class Dog{ public void bark(){ System.out.println("woof "); } } class Hound extends Dog{ public void sniff(){ System.out.println("sniff "); } public void bark(){ System.out.println("bowl"); } } public class OverridingTest{ public static void main(String [] args){ Dog dog = new Hound(); dog.bark(); } } |
output:
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1 |
bowl |
Overloading code:
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class Dog{ public void bark(){ System.out.println("woof "); } //overloading method public void bark(int num){ for(int i=0; i<num; i++) System.out.println("woof "); } } |
Reference:
http://www.programcreek.com/2009/02/overriding-and-overloading-in-java-with-examples/
Java Programmer
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CAREER OPPORTUNITY
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About Company: Swosti [www.swosti.net], Mobile Credit Card is an offshoot of Bdjobs.com. Swosti, a mBillionth Award-2014 [http://mbillionth.in/] winning concept deals with automated credit and savings management solution in Bangladesh. Now the company invites applications from competent people for the following position(s): Position : Java Programmer Educational Requirement:
Qualifications/ Skill:
Preference:
Salary: Market-driven Other Benefits
Apply Instruction: Application Deadline: June 15, 201 |
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Java Developer
Java/J2EE Developer (EG-560) |
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| We are looking for a Java programmer to join our core team.
Qualificatons
Education
Experience
To apply for this position, please forward your resume to: [email protected] |
Google Interview Diary
Posted in Interview
Become a Software Engineer in PHP platform
28 Oct 2016 · answer
- First, obligatory learn those topics very well: HTTP, cookies, sessions, caching, gzip, OSI model, DNS, SMTP, HTTPS, HTTP2
- Understand Web Standards, HTML, CSS from W3C and MDN
- Go though official PHP7 documentation on php.net
- Read about Computer science, data structures, algorithms, Software engineering principles, design patterns, OOP, Functional programming, MVC, Dependency Injection. Many articles available on Hashnode, Quora and Medium. You also may try FreeCodeCamp. Good free online video tutorial series available on Udacity
- Learn SQL, MySQL 5.7
- Learn unix basics, commands, Apache or nginx, hosts file, make local domain (usually ending with .dev or .local)
- Set up your local environment with PHP7, MySQL5.7, Apache/nginx installed, configured (I recommend install all them manually and not using something like WAMP, it’s not so hard, even on Windows)
- Make a simple own MVC application on plain PHP
- Install Composer and learn about it and package management.
- Start watching laracasts.com
- Learn basics of Node, npm, install node.js
- Go though whole documentation of Laravel 5.3
- Make your own Laravel app
- Register at GitHub
- Read Laravel’s or any other popualr PHP project source code (at least some part of it), make you to understand every single line and operation, what it does and how
- Repeat 10 000 times.
What you learn try to learn from Fundamentals
Whatever you choose just stick with the basic (Data Structure, Database design, Algorithm etc.). Both have good future. I am also in similar situation like you (doing work in both PHP and Android from last 2 years). I found it is very important to have good command over basics.
Java J2EE Developer Freshers Interview Preparation
The books which you have mentioned are a very good background when it comes to Java language. The problem with being a “backend developer” is that usually even if you don’t work on frontend you are still expected to know basics of frontend stuff.
When I’m interviewing a backend developer or rather web developer with focus on backend, I expect him to know:
- Framework which we use which is Spring 3-4
- Database: SQL and JPQL
- Knowledge of HTML
- Some familiarity with CSS
- Familiarity with JavaScript and JQuery (not expert level)
- Knowledge how web works: Get and post requests, rest services, json, sessions
When it comes to frameworks most popular one are Spring and Java EE6, of course there are much more but if company is using something less commonly known they less expect you to know it.
Basically if you can write from scratch a simple to-do list application all by yourself, you are ok to be junior level web dev.
Learn Fundamentals..Write Code to Become a Software Engineer…Don’t Think About your CGPA
I looked at the previous answers, and couldn’t help to jump in to add something that nobody said.
To become a software engineer you need to know some basic stuffs–
- At least one programming language using which you can code proficiently and feel comfortable with; it can be python, C or Java or anything you like! Language doesn’t matter, but your sense of building blocks of logic does!
- Object Oriented Programming – You need to know the basics of object oriented programming and how to use/implement them in real life projects/problems. You should have at least one project where you have worked with these concepts.
- A few basic algorithms on sorting, searching and string manipulation will be of great help. And also knowledge about space and time complexities.
- Some basic data structures like Queue, Stack, List etc.
- Few widely used software design patterns like Singleton, Factory Method, Adapter etc. and when and how to apply them.
This is pretty much it, if you know these things well, even if you don’t have a good GPA you should be able to get a job- but I don’t guarantee that it will be a great job! To get a great job you will have to try to become better. It’s like iterative development, you get better, you get better job and you get more better, you get another better than before job and so on!
Lastly, GPA doesn’t have much to do with getting a job as software engineer or becoming a software engineer. If you are passionate about programming and you love solving problems and of course you have the 5 things I mentioned before- don’t wait, just go there and start applying and see how things roll out for you! Best of luck!
Posted in Interview
Advice For PHP Developer
PHP Development is quite easy and fun to work at. Here are a few tips that should help you to be a good PHP developer.
- Use OOP : Using classes (or Objects) will keep like things together and remove the repetition of code and perform basic tasks of production very easily.
- Keep your distance from anything ending with _once() : include_once() and require_once() is extremely hard on server resources. These things will kill your server resources.
- Design Patterns : Design Patterns are some default structure solutions to solve problems of design, but the application design (modelling). But, why should I learn that? Just to write a better code and improve reusability. With design patterns you will find some default common problems and every time you find that problem you will find a default design to apply, so it’s easy to solve design solutions in your project.
(recommended : “Head First Design Patterns”) - Use Frameworks : If you are a PHP developer that concerns about security and productivity I recommend you to use a framework. It will improve your development speed and you will have a better designed and structured application.
- Use PHP’s inbuilt functions : PHP has many built-in functions that can do what you need them to, so check out the manual to make sure you are doing it in the best way possible.
- PHP: The Right Way : Stay updated with what’s happening in the PHP world.
- Well documented and commented code.
- Code Code Code.
That’s pretty much all about it. Hope that helps.
Source: https://www.quora.com/How-do-I-become-a-good-PHP-developer-1
Interview: Find Occurances in an Array – Binary Search Application
Some theory:
https://www.youtube.com/watch?v=OE7wUUpJw6I
https://www.youtube.com/watch?v=pLT_9jwaPLs
code:
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/* Count Frequency in an Array Syed Ahmed Zaki -- 2017 */ #include<stdio.h> int findcount(int A[],int n,int x) { int i,count=0; for(i=0; i<=n-1; i++) { if(A[i]==x) { count=count+1; } } return count; } int main() { int A[]= {1,1,3,3,5,5,5,5,9,9,11}; int x; scanf("%d",&x); int i=findcount(A,11,x); printf("%d is %d times",x,i); return 0; } |
Optimized Code: Using Binary Search
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/* Count Frequency in an Array(Optimized Version) Syed Ahmed Zaki -- 2017 */ #include<cstdio> int findcount(int A[],int n,int x, bool searchFirst) { int low=0, high=n-1, result=-1; while(low<=high) { int mid=(low+high)/2; if(A[mid]==x) { result=mid; if(searchFirst){ high=mid-1; //gp on searching towards left(indice onujayi) } else{ low=mid+1;//go on searching towards right(higher indices) } } else if(x<A[mid]) { high=mid-1; } else { low=mid+1; } } return result; } int main() { int A[]= {1,1,3,3,5,5,5,5,9,9,11}; int x; scanf("%d",&x); int firstIndex=findcount(A,sizeof(A)/sizeof(A[0]),x,true); if(firstIndex == -1){ printf("Count of %d is %d",x,0); } else{ int lastIndex=findcount(A,sizeof(A)/sizeof(A[0]),x,false); printf("%d is %d times",x,lastIndex-firstIndex+1); } return 0; } |
Posted in A ll Codes, Binary Search, Interview
PHP/or any other platform freshers qualification
https://www.facebook.com/groups/eee.cse/permalink/1650363141659373/
https://trello.com/b/0bKxmpuK/cse-graduate-checklist
Count number of 2’s in a given range (0 to n)? (ex: range between 0-20, Ans: 3 (i.e [2], 1[2], [2]0))
Google Search: https://www.google.com/search?q=Counting+2s&ie=utf-8&oe=utf-8&client=firefox-b#q=Counting+2s+in+c
SOlution: https://www.careercup.com/question?id=56794
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//https://www.careercup.com/question?id=56794 #include<stdio.h> int main() { int n,i,j; int ctr=0; scanf("%d",&n); for(i=0;i<=n;i++) { for(j=i;j>0;j=j/10) { if((j%10)==2) ctr++; } } printf("The number of 2's is >> %d ",ctr); return 0; } |
