Disclosure: This article may contain affiliate links. When you purchase, we may earn a small commission.
Python is a versatile programming language that may be used in a variety of fields, including computer science, data science and machine learning, web scraping and automation, web building, and more. It comes with a large number of frameworks and tools, as well as a large community of developers that are working to improve the language. Due to its wide range of applications, it has become the most popular language today, behind only JavaScript in popularity, according to the findings of the annual JetBrains survey. And if you're a Python developer or want to expand your skillset in this language in order to secure a high-paying job, the next step is to obtain certifications from reputable organizations.
Hello guys, if you are looking for the best C++ certification to enhance your profile in 2023 then you have come to the right place. In the past, I have shared the best IT certifications for Java developers and in this article, I am going to share the best certification for C++ Developers. The digital world has been growing up. It is like every digital device we hold has the application of coding in it. Hence, it has made coding an inevitable skill. Coding can be learned from anywhere. Every day there are so many sites evolving to learn what you want. But to prove that you have enough experience, you just need a competent certificate to stand out of crowd. Here, we will introduce you to the top 5 certifications that you can get if you're a C++ based work person and also if you want to start your career in C++.
Cyber security is the science behind protecting the company's
infrastructure, including employees' computers, their network, the servers
where they host the web application, and the database of users' information
or any sensitive information. They use some tools to assess the security of
their infrastructure and to discover new vulnerabilities.
Hello guys, if you are preparing for the Google Cloud Network Engineer exam or want to become a Google Certified Engineer in 2023 then you have come to the right place. In the past, I have shared the best Google Cloud Platform courses as well many more resources to prepare for Google cloud Digital Leader, Google Cloud Developer, Google Cloud Data Engineer, and other exams and in this article, we are going to discuss a step by step guide to prepare for Google Cloud Network Engineer certification. This guide not only gives you information about the actual exam but also shares useful resources like books, online courses, and mock tests, both free and paid which you can take to prepare well for this exam.
If you guys are in dire need of a few web development and app development online courses but couldn't select? Want to learn from one of the best in the industry and in a fun, easy way? You have come to the right spot. What's the wait then? Let's start. In this article, I am going to share the best courses from one of my favorite Udemy instructors Maximilian Schwarzmüller, whose
Angular,
Reactjs, and web development courses have helped me a lot. While I have mentioned him courses multiple times in my favors list, I thought to create this dedicated list for his courses to help people like me who want to learn from Maximillian Schwarzmuller and AcadMind courses.
Hello guys, If you have joined any course on Udemy then I am sure you will have your favorite instructor, I have many and in the past I have shared
best Udemy course by Maximillian Schwarzmuller and today, I am going to share best Udemy courses by Jose Portilla, anothe of my favorite instructor when it comes to learn Pytho and related technologies. Jose Portilla is unquestionably one of Udemy's most popular Data Science and Machine Learning professors. His courses are a treasure for data junkies, with over 2,500,000 total students and an average rating of 4.5+/5 stars from 800,000+ evaluations.
Hello guys, if you are working in a Java and Spring Boot project and you are
getting errors like "@Autowired - No qualifying bean of the type found for
dependency " then you have come to the right place. Earlier, I have shared
how to solve error creating bean with name in Spring framework
and In this tutorial, we are going to discuss
how to fix @Autowired - No qualifying bean of the type found for
dependency. When we come across the org.springframework.beans.factory, we need to be
careful. Whether there isn't a qualifying bean of type XXXX accessible, we
should see if there is a spring bean called XXXX in the runtime. In most
cases, we simply try to inject a bean that isn't defined.
Hello guys, if you are preparing for Microsoft's Python certification 98-381
and looking for the best resources like online courses and tutorials, then you
have come to the right place. Earlier, I have shared the
best Python books,
and the
best online courses to learn Python. In his article, I will share the best online courses to prepare for
this Python certification. Let’s say that you want to get a professional
career in the IT field and you are wondering what you should do in this
situation. I would highly recommend that you need recognizable certifications
in your belt whether you want to be a web developer or a programmer in any
language and python is absolutely one of them.
Hello guys, if you are preparing for AWS Data Analytics Specialty
Certification Exam (DAS-C01) in 2023 or want to become an AWS Certified
Data Analytics Specialist and looking for the best resources to prepare for this
exam and crack in the first attempt then you have come to the right place. In
the past, I have shared the best resources and guides to prepare for various AWS
exams like
AWS Cloud Practitioner,
AWS solution architect,
AWS developer associate, and
AWS SysOps Admin exam
in this article, I am going to share the best online courses and practice test
to prepare for AWS Data Analytics Specialty Exam DAS -C01. These are the most
comprehensive and up-to-date resources to prepare for this certification from
sites like Udemy, Pluralsight, and Coursera, and they are also tightly aligned
with the syllabus and cover all exam topics.
Hello guys, if you are preparing for Cisco CCNA certification, particularly CCNA 200-301, and looking for the best resources like online courses, tutorials, practice tests, books, etc then you have come to the right place. Earlier, I have shared the
best CompTIA certification courses and in this article, I am going to share the best online courses to prepare for Cisco CCNA 200-301 certification exam. These courses are created by experts and trusted by thousands of developers and you can join them to know and learn more about Cisco CCNA certification as
well as pass their Cisco CCNA official exam to get your Certification.
Hello guys, if you want to become a certified Kafka Developer in 2023 then you have come to the right place. You will be glad to know that Confluent offers Apache Kafka Certifications and one of them is the popular Apache Kafka Developer Certification also known as the Confluent Certified Developer for Apache Kafka, or Confluent Certified Developer for Apache Kafka (CCDAK) exam. If you already know about this exam and preparing for it but need the best resources like online courses, books, and practice tests then stay tuned. Earlier, I have shared the best Apache Kafka courses for beginners
and In this article, I am also going to share the best online courses and
practice tests to prepare for Apache Kafka Developer certification in 2023 and
become a certified Kafka developer.
Hello guys, if you want to learn Splunk, one of the most popular tools for
aggregating, monitoring, and visualizing data, particularly logs files then you
have come to the right place. In the past, I have shared the best courses to
learn DevOps,
Selenium, and
Machine Learning
and in this article, I am going to share the best online courses to learn Splunk
for Beginners and Experienced programmers. I first come to know about Splunk in
one of the company workshops where they are switching to Splunk for better
monitoring of log files. I really like the concept of installing Splunk agent on
boxes and then seeing logs from all production machines in one place in a
web-based interface.
Hello friends, we are here again today for another exciting topic to
discuss. But, today we are not gonna discuss something which is related to
Java or any other language or spring boot. Today we are gonna discuss
Google
Cloud Platform Digital Leader Certification which is immensely practical and has
the potential to land you very high-paying jobs. If you are preparing for
Google Cloud Professional Digital Leader certification and looking for the
best prep material and resources then you have come to the right place.
Earlier, I have shared the
best Google Cloud courses for beginners
and today we are gonna take a look at the best available Google cloud courses
online.
Hello friends, we are here again today for another exciting topic to
discuss. But, today we are not gonna discuss something which is related to
Java or any other language or Spring boot. Today we are gonna discuss Chef
and Salt, two of the most popular DevOps and Infrastructure automation
tools. They are immensely practical and have the potential to land you very
high-paying jobs. If you are a DevOps Engineer or aspire to become a DevOps
Engineer then you may have heard about Chef,
Puppet,
Ansible, and Salt. Earlier, we have seen
best courses to learn DevOps, and today we are gonna take a look at the best available Chef and Salt
courses online.
Hello guys, if you are preparing for the AZ-220 exam or Azure IoT
certification in 2023 and looking for the best AZ-220 certification courses
then you have come to the right place. In the past, I have shared the
best AZ-900 courses,
best AZ-104 courses, and
best AZ-204 courses
and in this article, I am going to share the best online courses to crack
Azure IoT certification or AZ-220 exam. These are the best resources to
prepare for this exam and curated from popular sites like Udemy, Coursera, and
Pluralsight. Before we get to the best certification courses that you
can use to clear the IoT AZ-220 certification exam, let me tell you what
exactly is this AZ-220 Certification.
Hello guys, if you want to learn Data Science in 2023 and looking for the best
resources like books, tutorials, online courses, and websites then you have
come to the right place. Earlier, I have shared the
best Data Science courses
and
books and in this article, I Am going to share the
best websites to learn Data Science online in 2023. Data science is the
method of gathering data from many sources and channels such as databases
analyzing and transforming them into visualization and graphs that facilitate
the readability and understanding of your data to ensure better
decision-making inside an organization and add value to their business.
Hello guys, today, I am going to talk about a really powerful programming
language for text processing - Perl. I first come across Perl 10 years ago while
creating a Perl script to generate a report from log files. At that time, I know
that when it comes to string and text processing, there is no match for
Perl. It offers a lot of useful data structure and tools which makes
loading data from file and process a lot easier than any other programming
language. Since scripting is an important skill for a senior developer, knowing
a programming language like
Python or Perl can really make a difference.
Hello guys, if you want to learn Facebook Marketing and looking for the best
online courses other resources then you have come to the right place. I have
been sharing resources on digital marketing for quite some time and earlier I
have shared
5 actionable Twitter courses as well as the
best Instagram Marketing course, and today, I am going to share the best Facebook Marketing
courses to join in 2023. These are truly the best courses to learn essential
skills like Facebook ads and in general how to take advantage of Facebook's
expansive reach to promote your product. I have used Facebook and Twitter to promote my books and online courses but I am still learning with these courses to generate consistent sales and thought to share with you.
Are you a new manager? Are you uncertain of your skills and expertise? Do you
want to bring the best possible results to the company you work for?
Good… you’re in the right place. Management is not an easy task. You have
to overcome people’s problems, help them and be like their elementary school
teacher. The only difference is that these adults don’t fight over a pencil or
a seat. Whatever it is that you’re striving for in your management career, a
management course will help you get there. It’s always nice getting educated
by someone experienced that has already gone through what you’re going
through.
Hello guys, if you want to learn Business Strategy and looking for the best
online courses then you have come to the right place. Earlier, I have shared
many digital marketing courses like these
actionable Twitter courses, Instagram Marketing course, and these
best Facebook Marketing courses
but we never discussed Business Strategy. But, don't worry, in this article,
I am going to share the best online courses to learn Business Strategy in
2023. These are very actionable courses with actionable tips and tricks and
filled with real-life experience. You can join a couple of these courses to
learn the Business strategy and grow your business in 2023, but before that
let's try to find out what is business strategy?
Hello guys, here is one of the classical programming questions how do you find the length of a linked list using recursion and without recursion. This is not about the
LinkedList class of Java API but the linked list data structure, which is made of nodes that contain both data and the address of the next node. In order to calculate the length, you need to count all nodes in the linked list. Since it's a singly linked list you can only move in one direction from the head to tail. This coding problem was asked to me on my first interview with a multinational Investment bankAfter that, this question has been asked to me on several occasions in other
Programming Job Interviews as well.
Suppose you have a Map or Dictionaries like HashMap or Hashtable, which contains key-value pairs like books and their prices, and you want to delete all books whose prices are greater than 40 USD, how do you that in Java? This is one of the most common scenarios while developing Java applications and many Java programmers, will say that they will
iterate over Map and check each entry and then use the
remove(Object key) or
remove(Object key, Object value) methods from
java.util.Map to delete any mapping where the value is greater than 40 USD. Though the
approach is right, the answer is wrong.
The array is one of the most important data structures in any programming
language, at the same time different programming languages implement and treat the array differently. Anyone who is done some programming knows the value of an array and the importance of knowing about array type, using them in their program. Together with a linked list, the array forms a set of basic data structures. Though Java offers excellent Collection API
and some of the collection classes like ArrayList and
HashMap, they are internally based on the array.
Hello guys and ladies, in this article, I am sharing 30 core Java technical questions, from screening and phone rounds of interviews. In telephonic interviews, questions are short, fact-based and Interviewer expects a to-the-point reply and some keywords in answers. Accordingly, I have given very short answers to all these questions, only the main points; just to make this a revision post and not the main source for preparation. For thorough preparation, my master list of
140+ Java questions is a better one to start with. I am also expecting every Java programmer to know answers to all these Java technical questions if he has more than 4 to 5 years of experience. It's only freshers and junior developers who need to do a bit of research to understand topics well.
Interface in Java is a simple concept but many programmers fail to realize
their actual use, including me. When I started
learning Java programming, I
learned interface is something where you can declare functions but cannot
define them. To me, they were useless at that time because there was no code
to do anything.
It took me years to realize how useful an interface can
be. They are not intended to do things but they are actually facilitators.
They provide
abstraction and give the flexibility to change your program in the future. That's why it's very important for a Java programmer to understand the benefits of interfaces and realize how and when to use them in code.
Data structures and algorithm questions are an important part of any programming job interview, be it a Java interview, a C++ interview, or any other programming language. Since data structures are core programming concepts, it's mandatory for all programmers, to know basic data structures like the stack, linked list, queue, array, tree, and graph. Though trees and graphs are on the tougher side, I still see programmers get familiar will all these. Any list of programming job interview questions is incomplete without questions from data structures and algorithms. Similarly, while going on questions from data structure you may get some programming exercise as well e.g. swapping numbers without temp variable.
Though both
SOAP and RESTful web services allow a client to query the server for some information, the way they are implemented and used is quite different. The main
difference between SOAP and REST is that the former provides a standard of communication between client, server, and other parties and has restricted a set of rules and format, while REST leverages the ubiquity of HTTP protocol, in both client and servers, to allow them to communicate with each other regardless of their implementation. In short, getting data from a
RESTful web service requires less headache than getting data from a SOAP web service.
Java 8 has added a new method called
lines() in the Files class which can be used to read a file line by line in Java. The beauty of this method is that it reads all lines from a file as Stream of String, which is populated lazily as the stream is consumed. So, if you have a huge file and you only read the first 100 lines then the rest of the lines will not be loaded into memory, which results in better performance. This is slightly different from the
Files.readAllLines() method (which reads all lines into a List) because this method reads the file lazily, only when a terminal operation is called on Stream like
forEach(),
count(), etc. By using the
count() method you can actually count a number of lines in files or the number of empty lines by filtering empty lines.
The String.intern() method can be used to deal with the
String duplication problem in Java. By carefully using the
intern() means you can save a lot of heap memory consumed by duplicate String objects. A String object is said to be duplicated if it contains the same content as another string but occupied a different memory location e.g.
str1 != str2 but
str1.equals(str2) is true. Since the String object consumes a large amount of
heap memory in the average Java application, it makes sense to use the
intern() method to reduce duplication and take advantage of the
String pool feature provided by Java. You can use the intern() method to intern a String object and store them into the String pool for further reuse.
ZIP format is one of the most popular compression mechanisms in the computer world. A Zip file may contain multiple files or folders in compressed format. Java API provides extensive support to read Zip files, all classes related to zip file processing are located in the
java.util.zip package. One of the most common tasks related to zip archive is to
read a Zip file and display what entries it contains, and then extract them in a folder. In this tutorial, we will learn how to do this task in Java. There are two ways you can
iterate over all items in a given zip archive, you can use either
java.util.zip.ZipFile or
java.util.zip.ZipInputStream. Since a Zip file contains several items, each of them has a header field containing the size of items in a number of bytes. This means you can iterate all entries without actually decompressing the zip file.
You can use the
String.split() function or
StringTokenizer class to split a comma-separated String in Java. Since splitting a String is a very common functionality, Java designers have provided a couple of
split() methods on
java.lang.String class itself. These
split() function takes a regular expression and split the String accordingly. In order to parse a comma-delimited String, you can just provide a
"," as a delimiter and it will return an array of String containing individual values. The
split() function internally uses
Java's regular expression API (java.util.regex) to do its job.
Reflection in Java is a very powerful feature and allows you to access private methods and fields which is not possible by any other means in Java and because of this feature of reflection many code coverage tools, static analysis tools,s and Java IDE like Eclipse and Netbeans has been so helpful. In the last article, we have seen details about private keywords in Java and learned why we should always make fields and methods private in Java. There we have mentioned that private fields and methods are only accessible in the class they are declared but with reflection, you can call the private method and access private fields outside the class. In this article, we will see a simple example of accessing a private field using reflection and invoking a private method using reflection in Java.
What is a volatile variable in Java and when to use the volatile variable in Java is a famous
multi-threading interview question in Java interviews? Though many programmers know what is a volatile variable they fail on the second part i.e. were to use volatile variables in Java as it's not common to have a clear understanding and hands-on on volatile variables in Java. In this tutorial, we will address this gap by providing a simple example of the volatile variable in Java and discussing when to use the volatile variable in Java. Anyway, the volatile keyword in Java is used as an indicator to Java compiler and Thread that do not cache the value of this variable and always read it from the
main memory.
So if you want to share any variable in which read and write operation is atomic by implementation like reading and write in an int or a boolean variable then you can declare them as a volatile variable.
Hello guys, If you want to learn Computer Security and looking for the best
courses to learn Computer Security then you have come to the right place.
Earlier, I have shared the best Cyber Security Courses and best Web Security courses and in this article, I am going to share free online courses to learn
Computer Security for beginners, both tech and non-tech people. Computer
security is a complex field of learning but must for everybody learn to
protect themselves and their companies from letting bad people access your
sensitive information they shouldn’t access.
Hello guys, if you want to work on your public speaking skills in 2023 and
looking for the best courses then you have come to the right place. Earlier, I
have shared the
best management skill courses
and
best free personal development courses
and in this article, I am going to share the best online courses to learn
public speaking in 2023. This is one of the skills which is very important to
grow in your career and not just for non-technical people but also for
technical and IT professionals like Tech leads, Senior Developers, Business
Analysts, and Project Managers. It's not easy to speak in front of people and
I have seen even experienced hand-tumble and hesitate, even while speaking
with an online audience, but at the same time, it's also an opportunity to
thump your authority and establish yourself as an expert.
Hello guys, if you want to learn Swagger and looking for the best online
courses then you have come to the right place. In the past, I have shared the
best REST API courses
as well
best Postman courses, one of the best tools to test REST API and in this article, I am going to
share the best online courses to learn Swagger in 2023. I have curated this
list from my favorite online learning platform like Udemy, Pluralsight,
and Coursera and they are suitable for both beginners and intermediate
developers who want to master the Swagger tool. But before we jump into these
courses Let us start with the simple stuff first. What exactly is Swagger and
Open API?
Hello guys, if you are wondering how to market your course or your product on
Instagram, one of the popular social networks, particularly for creators then
you have come to the right place. Earlier, I have shared the
best Twitter marketing course
and a lot of you asked to share similar courses for Facebook and Instagram
marketing and here we are with the best Instagram marketing courses in 2023.
There are more than 1.3 billion people using Instagram in 2021. So we can
securely say that Instagram has a big influence over the world.
Since there are so many people using the platform, why not take advantage of it and grow your business with it?
Hello guys, if you are looking for the best online courses to learn Apache
camel then you have come to the right place. Earlier, I have shared the
best courses to learn Spring framework,
Spring Boot, and
Spring Cloud,
and today, I am going to share the best online courses to learn Apache Camel.
Let us get the simple things out of the way first. What exactly is Apache
Camel? It is essentially a black box that receives a message from one point
and sends it to another one. It's also one of the most popular open-source
integration tools for Java applications. It provides integration solutions
based upon popular Enterprise Integration patterns.
Hello guys, if you want to learn REST Assured tool for testing your API and
RESTful Web services and looking for the best online courses to learn REST
Assured then you have come to the right place. In the past, I have shared the
best online courses to learn various REST API development tools like
Postman,
SoapUI, and
Selenium, and today, I am going to share the best REST Assured courses to learn this
useful tool in 2023. These are the best resource I can find to learn REST
assured, particularly when it comes to choosing online courses and they are
from popular online platforms like Udemy and Pluralsight. You can join one or
two of these courses to master this excellent tool to automate your REST API
Testing.
Hello friends! we meet again today and are surely gonna learn something
fantastic cause as they say 'knowledge never fades!'. So, today we are gonna
learn something that is very familiar and related to me as I type this. Today
we are gonna review some of the best Google Sheet online courses that are
present in the market.
So, what's the wait? Let's start!
All of you must have used
Excel or any other spreadsheet program by now. Google Sheets is a spreadsheet
tool that is included with Google's free, web-based Google Docs Editors suite.
Google Docs, Google Slides, Google Drawings, Google Forms, Google Sites, and
Google Keep are all part of the service. Let's see some of the best available
courses to learn it.