Hello guys, one of the common Programming, the day-to-date task is to compare two arrays in Java and see if they are equal to each other or not. Of course, you can't compare a String array to an int array, which means two arrays are said to be equal if they are of the same type, has the same length, contains the same elements, and in the same order. Now, you can write your own method for checking array equality or take advantage of Java's rich Collection API. Similar to what you have seen while printing array values in Java, java.util.Arrays class provides convenient methods for comparing array values.
Top 10 Free Udemy Courses to Learn Coding and Web Development in 2025 - Best of Lot
When I was a little kid, I remember reading somewhere that coding will be the language of the future. I was intrigued. What was this new language that I didn't know about and nobody around me spoke? How was it going to be the language of the future? Before we get to the 10 free Udemy courses that will teach you coding, let me tell you a little more about what coding is.
70+ Coding Interview Questions for Software Engineers and Developers in 2025
There are a lot of computer science graduates and programmers applying for programming, coding, and software development roles at startups like Uber and Netflix and big organizations like Amazon, Microsoft, and Google. They are also quite popular on service-based companies like Infosys, TCS, or Luxsoft, but many of them have no idea of what kind of programming interview questions to expect when you’re applying for a job with these companies. Things
have also changed a lot in the last few years and coding interviews
have become tougher. Now you need to go through a couple of coding
interview rounds but you also need to prepare for System design problems which wasn’t normal in the last decade.
Top 6 Books to Improve Coding and Programming Skills in 2025 - Must Read, Best of Lot
Learning a Programming language, like Java, Python, or C++ is easy, but learning to write good code is not. Writing good code is more Art than Science and also an important differentiating factor between an average programmer vs. a good programmer. Since most of the programmers often look for inspiration and resources to improve their coding skill, I decided to share some of the good books which can help them to improve their coding. Since many universities, colleges, and training courses only teach programming languages but not the art of coding, it still remains one of the self-learned skills which many programmers acquired either in Job or working on real-world projects.
Top 21 Websites to Learn Programming for FREE in 2025 - Best of Lot
Hello folks, if you want to learn Coding from scratch and looking for some free online training websites or are someone who is learning programming and Coding by yourself and looking for some fantastic free websites and coding platforms, then you have come to the right place. Earlier, I shared free courses to learn Java, Python, and JavaScript, and In this article, I will share 21 websites to learn Coding for FREE. These are absolutely free online training websites and platforms you can use to learn programming languages and essential software skills like web development, machine learning, automation, and app development for free from the comfort of your office and home.
Is Cracking the Coding Interview book Still worth it in 2025? Review
Hello guys, if you are preparing for Programming Job interviews and wondering whether the classic Cracking the Coding Interview book by Gayle Laakmann McDowell is still worth it in 2025 then you have come to the right place. In the past, I have shared best books and courses for coding interviews where I mentioned this book and today, I am going to review this book in depth. This was one of the first book I used to prepare for coding interview and due to its focus on evergreen topic, I am happy to say that it's still relevant, but whether it's good enough now is another question, which we will find in this article.
How to Count number of 1s (Set Bits) in a binary number in Java [Solved]
Good morning folks, In today's article, we are going to discuss one of the frequently asked bit manipulation-based interview questions, how do you count the number of set bits in a given bit sequence? Bit Manipulation is an important topic in programming interviews and a good programmer should have sufficient knowledge and skill to work with binary numbers. This kind of question tests the skill of the programmer. Sometimes, it is also asked as to how to count the number of 1s (ones) in a given number? Both are the same question because 1 is also known as set bit. For example, if the given input is 1000110010 then your program should return 4, as three are only four set bits in this bit sequence.
How to count a number of words in given String in Java? [Solved]
Can you write a method in Java that accepts a String argument and returns a number of words in it? A word is a sequence of one or more non-space characters i.e. any character other than '' (empty String). This should be your method signature:
public int count(String word);
This method should return 1 if the input is "Java" and return 3 if the input is "Java, C++, Python". Similarly a call to wordCount(" ") should return 0.
public int count(String word);
This method should return 1 if the input is "Java" and return 3 if the input is "Java, C++, Python". Similarly a call to wordCount(" ") should return 0.
Where to Start Learning to Code in 2025? Resources
Hello guys, if you want to coding and looking for best online courses to learn to code then you have come to the right place. In this article, I am going to share best coding and programming online courses. Coding, computers, programming, and IT has been a buzzword all through the world for last 10-15 years. In the same durations, we have seen several tech companies touch a milestone of a couple of trillion dollars in market cap. Everyday, in different parts of the world, we see new companies and organizations growing at unprecedented pace.
Top 95 Programming Interview Questions Answers to Crack Any Coding Job Interview
Hello guys, if you are preparing for your next Programming Job interview and looking for frequently asked Coding or Programming questions to practice then you have come to the right place. In this article, I am going to share some of the most commonly asked Coding questions from Programming Job interviews. In order to do well on the Coding interview you need practice, you just can't go there and try to solve the coding problems in a limited time, that's actually one of the most common reasons to fail your programming Job interviews. Sometimes, the interviewer also asks a little bit easier coding questions on a telephonic interview like revering array in place or reversing a string in place.
Top 21 String Programming and Coding Interview Questions With Solutions
In this article, I am going to share 21 of the most common String-based Programming and Coding interview questions from Java developer interviews. These questions require you to write code to solve the problem and they are different from traditional Java String questions like how the substring method works in Java? or when to use the intern() method of String in Java? Since coding and problem solving are an important part of any programming job interview, it's imperative that you know how to solve them in time and in a pressure situation, which comes only after doing practice with the right set of questions. Since these questions are already tried and tested and appeared in many interviews, they will provide you the experience you need to crack your coding interview.
What is static in Java? Example Tutorial
What is static in Java
Static in Java is related to class if a field is static means it belongs to the class, similarly static method belongs to classes and you can access both static method and field using the class name, for example, if count field is static in Counter class than you can access it as Counter.count, of course, subject to restriction applied by access modifier like private fields are only accessible in class on which they are declared, protected fields are accessible to all classes in the same package but only accessible in subclass outside the package, you can further see private vs protected vs public for complete details on access modifier.
Static in Java is related to class if a field is static means it belongs to the class, similarly static method belongs to classes and you can access both static method and field using the class name, for example, if count field is static in Counter class than you can access it as Counter.count, of course, subject to restriction applied by access modifier like private fields are only accessible in class on which they are declared, protected fields are accessible to all classes in the same package but only accessible in subclass outside the package, you can further see private vs protected vs public for complete details on access modifier.
10 Common Coding Mistakes Every Java Developers Should be aware of
Hello guys, Java is a versatile and powerful programming language, but it's not immune to common coding mistakes that developers may inadvertently make. These errors can lead to unexpected behavior, performance issues, and even security vulnerabilities. In this article, I am going to share 10 such common coding mistakes Java developers often encounter, provide examples of each mistake, explain why they are problematic, and offer solutions to correct them. I strongly recommend every Java developer whether he is beginner, intermediate or senior developer to go through the list once so that you are aware of these mistakes. If you have been coding in Java then most likely you would have also made the same mistake, if you do, let us know in comments so that we all can learn from each other.
How to Remove all white spaces from String in Java? From Start, End and between Words Examples
String API in Java provides several utility methods to remove white space from String in Java, from the beginning, end, and between words. White space means blank space including tab characters. One of the classic methods to remove white space from the beginning and end of a string in Java is the trim() method, which removes white space from beginning and end. While using the trim() method, the key thing to remember is that trim() returns a different String object than the older one because String is immutable in Java.
How to convert lowercase String to uppercase in Java? Example
Convert String from uppercase to lowercase in Java
Sometimes we need to convert String from lowercase to uppercase or from
uppercase to lowercase e.g. before printing or storing into a database etc. String
class in Java provides some utility method to perform this case conversion.
You can use toUpperCase() to convert any lower case String
to uppercase and toLowerCase() to convert any uppercase String to
lowercase. Key thing to remember while using toUpperCase() and toLowerCase()
is that they return a different string rather than modifying the same String
because String
is immutable in Java.
How to check String contains a text in Java? contains() and indexOf() Example
Sometimes you want to check if one String contains another String or
SubString or not e.g. "HelloWorld" contains "Hello" and
"World" SubString.
There are many ways to check SubString in String in Java e.g. contains(), indexOf(), or matches() method of java.lang.String class. In the last article, we have seen how
to use matches method of String class with a regular expression and In this
article we will see example of contains() and indexOf() method to
check any String or SubString in Java.
10 Programming questions and exercises for Java Programmers
If you have just started learning the basics of Java programming language or are familiar
with programming in either C or C++, then these Java programming questions and exercises are for
you. It doesn't focus on a particular part of Java, but these coding exercises
will switch you into programming mode. These are also great ways to master basic
programming construct like if-else, loops like for and
while break and continue with loop, Java operators e.g., arithmetic
and logical operator, recursion, methods, or functions, and standard Java API. You may also
find these Java programming questions in most Java courses taught in schools,
colleges, and various Java training courses.
How to check leap year in Java - program example
Write a Java program to find if a year is a leap year or not is a
standard Java
programming exercise during various Java programming courses on schools,
colleges, and various training institutes both online and offline, along with other popular homework's e.g. printing
Fibonacci numbers, checking
palindromes, or finding
prime numbers. Just to recap a leap year is a year with 366 days which is 1
extra day than a normal year. This extra day comes in the month of February and on
leap year Feb month has 29 days than normal 28 days. If you are following then
you might know that leap year comes in an interval of 4 years. This year 2012 is
a leap year and Feb has 29 days, you can check.
Bubble sort in Java - Program to sort an Integer Array [Example]
Bubble sort is one of the classic sorting algorithms,s which is used to explain
sorting during various computer and engineering courses. Because of its
algorithmic nature and simplicity, it's often used in various Java
and C++ programming exercises. You may expect questions like the Write Java program to sort integer arrays
using bubble sort during any programming interview. Since algorithmic
questions are always tricky
questions and not easy to code. Even the simplest of them can lead to confusion,
especially if you are not gifted with a natural programming head. I have seen
many developers fumble if asked to code on the spot. That's why it's advisable to
do algorithmic and logical programming during training and learning programming
and OOPS to get this skill of converting logic into code.
Top 15 Recursion Programming Exercises for Java Programmers with Solution
Hello guys, if you are trying to learn recursion but struggling and looking for some common recursive coding problems then you have come to the right place. Earlier, I have shared frequently asked programming interview questions, books, and courses and in this article, I will share 15 coding exercises you can do to learn recursion from scratch. These are common coding problems that can be solved using recursion, these will not only help in learning recursion but also in your coding interview preparation. I personally found the best way to learn Recursion in Java or any programming language is by doing some examples.
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