Typical java interview questions sorted by experience Junior * Name some of the characteristics of OO programming languages * What are the access modifiers you know? What does each one do? * What is the difference between overriding and overloading a method in Java? * What’s the difference between an Interface and an abstract class? * Can an Interface extend another Interface? * What does the static word mean in Java? * Can a static method be overridden in Java? * What is Polymorphism? What about Inheritance? * Can a constructor be inherited? * Do objects get passed by reference or value in Java? Elaborate on that. * What’s the difference between using == and .equals on a string? * What is the hashCode() and equals() used for? * What does the interface Serializable do? What about Parcelable in Android? * Why are Array and ArrayList different? When would you use each? * What’s the difference between an Integer and int? * What is a ThreadPool? Is it better than using several “simple” threads? * What the difference between local, instance and class variables? Mid * What is reflection? * What is dependency injection? Can you name a few libraries? (Have you used any?) * What are strong, soft and weak references in Java? * What does the keyword synchronized mean? * Can you have “memory leaks” on Java? * Do you need to set references to null on Java/Android? * What does it means to say that a String is immutable? * What are transient and volatile modifiers? * What is the finalize() method? * How does the try{} finally{} works? * What is the difference between instantiation and initialisation of an object? * When is a static block run? * Why are Generics are used in Java? * Can you mention the design patterns you know? Which of those do you normally use? * Can you mention some types of testing you know? Senior * How does Integer.parseInt() works? * Do you know what is the “double check locking” problem? * Do you know the difference between StringBuffer and StringBuilder? * How is a StringBuilder implemented to avoid the immutable string allocation problem? * What does Class.forName method do? * What is Autoboxing and Unboxing? * What’s the difference between an Enumeration and an Iterator? * What is the difference between fail-fast and fail safe in Java? * What is PermGen in Java? * What is a Java priority queue? * *s performance influenced by using the same number in different types: Int, Double and Float? * What is the Java Heap? * What is daemon thread? * Can a dead thread be restarted? You can check these resources for Coding interview Preparation All the best 👍👍

How to get job as python fresher? 1. Get Your Python Fundamentals Strong You should have a clear understanding of Python syntax, statements, variables & operators, control structures, functions & modules, OOP concepts, exception handling, and various other concepts before going out for a Python interview. 2. Learn Python Frameworks As a beginner, you’re recommended to start with Django as it is considered the standard framework for Python by many developers. An adequate amount of experience with frameworks will not only help you to dive deeper into the Python world but will also help you to stand out among other Python freshers. 3. Build Some Relevant Projects You can start it by building several minor projects such as Number guessing game, Hangman Game, Website Blocker, and many others. Also, you can opt to build few advanced-level projects once you’ll learn several Python web frameworks and other trending technologies. @crackingthecodinginterview 4. Get Exposure to Trending Technologies Using Python. Python is being used with almost every latest tech trend whether it be Artificial Intelligence, Internet of Things (IOT), Cloud Computing, or any other. And getting exposure to these upcoming technologies using Python will not only make you industry-ready but will also give you an edge over others during a career opportunity. 5. Do an Internship & Grow Your Network. You need to connect with those professionals who are already working in the same industry in which you are aspiring to get into such as Data Science, Machine learning, Web Development, etc. You can check these resources for Coding interview Preparation All the best 👍👍

40 Web Development Project Ideas

List of most asked Programming Interview Questions. Are you preparing for a coding interview? This tweet is for you. It contains a list of the most asked interview questions from each topic. Arrays - How is an array sorted using quicksort? - How do you reverse an array? - How do you remove duplicates from an array? - How do you find the 2nd largest number in an unsorted integer array? Linked Lists - How do you find the length of a linked list? - How do you reverse a linked list? - How do you find the third node from the end? - How are duplicate nodes removed in an unsorted linked list? Strings - How do you check if a string contains only digits? - How can a given string be reversed? - How do you find the first non-repeated character? - How do you find duplicate characters in strings? Binary Trees - How are all leaves of a binary tree printed? - How do you check if a tree is a binary search tree? - How is a binary search tree implemented? - Find the lowest common ancestor in a binary tree? Graph - How to detect a cycle in a directed graph? - How to detect a cycle in an undirected graph? - Find the total number of strongly connected components? - Find whether a path exists between two nodes of a graph? - Find the minimum number of swaps required to sort an array. Dynamic Programming 1. Find the longest common subsequence? 2. Find the longest common substring? 3. Coin change problem? 4. Box stacking problem? 5. Count the number of ways to cover a distance? You can check these resources for Coding interview Preparation All the best 👍👍

Here's the sample answer to "Tell me about yourself?" according to the most common job roles👇👇 Frontend Developer- Hi I’m [Your Name] and I'm a passionate front-end developer with [X years] of experience building user-friendly web interfaces. I'm proficient in HTML, CSS, and JavaScript, and I have a strong understanding of frameworks like React. I prioritize crafting clean, responsive code that delivers a seamless user experience. Backend Developer- Hi I’m [Your Name] and I'm a skilled backend developer with a strong foundation in [mention your primary languages]. I possess expertise in server-side development, database management using SQL, and experience with frameworks like [mention relevant frameworks]. I enjoy tackling complex challenges and building robust, scalable back-end systems. Full-Stack Developer - Hi I’m [Your Name] and I'm a passionate full-stack developer with [X years] of experience building web applications. I'm proficient in both front-end technologies like HTML, CSS, and JavaScript frameworks like [mention relevant ones]. I also have a strong understanding of back-end development using [mention languages like Python, Java] and frameworks like [mention relevant ones]. I enjoy tackling complex challenges and delivering user-centric solutions throughout the development cycle. I hope you will find this helpful 🙌❤️

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Top 5 data science projects for freshers 1. Predictive Analytics on a Dataset:    - Use a dataset to predict future trends or outcomes using machine learning algorithms. This could involve predicting sales, stock prices, or any other relevant domain. 2. Customer Segmentation:    - Analyze and segment customers based on their behavior, preferences, or demographics. This project could provide insights for targeted marketing strategies. 3. Sentiment Analysis on Social Media Data:    - Analyze sentiment in social media data to understand public opinion on a particular topic. This project helps in mastering natural language processing (NLP) techniques. 4. Recommendation System:    - Build a recommendation system, perhaps for movies, music, or products, using collaborative filtering or content-based filtering methods. 5. Fraud Detection:    - Develop a fraud detection system using machine learning algorithms to identify anomalous patterns in financial transactions or any domain where fraud detection is crucial. Free Datsets -> https://t.me/DataPortfolio/2?single These projects showcase practical application of data science skills and can be highlighted on a resume for entry-level positions. Join @pythonspecialist for more data science projects

Machine Learning Projects 👇

These are top 5 data structures and algorithms projects, allowing you to dive deep into the world of DSA 💪🏻 •Project 1: Snakes Game (Arrays) The Snakes Game project is a classic implementation of the popular game Snake. This project allows you to understand the concepts of arrays, loops, and conditional statements. You can further enhance the game by incorporating additional features such as score tracking and power-ups. •Project 2: Cash Flow Minimizer (Graphs/ Multisets/Heaps) The Cash Flow Minimizer project involves solving a cash flow optimization problem using graphs, multisets, and heaps. Given a set of transactions among a group of people, the objective is to minimize the total number of transactions required to settle all debts •Project 3: Sudoku Solver (Backtracking) The Sudoku Solver project aims to solve the popular Sudoku puzzle using backtracking. This project allows you to understand the backtracking algorithm, which is widely used in solving constraint satisfaction problems. •Project 4: File Zipper (Greedy Huffman Encoder) The File Zipper project focuses on implementing a file compression utility using the Greedy Huffman encoding algorithm. This project provides a practical application of the greedy algorithm and helps you understand the trade-offs between compression ratio and execution time. •Project 5: Map Navigator (Dijkstra’s Algorithm) The Map Navigator project aims to develop a navigation system using Dijkstra’s algorithm. It involves finding the shortest path between two locations on a map, considering factors such as distance and traffic. You can check these amazing resources for DSA Preparation Join for more: https://t.me/crackingthecodinginterview All the best 👍👍

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LEGEND Form Project 😅😀 ----------------------------------------------------- Complete Source Code 👇 ----------------------------------------------------- <html> <head> <style> .outer{  margin:auto; height:300px; width:400px; border:2px solid black; position:relative } p{ margin-left:80px; } .in{ margin-left:80px; padding:10px } #bt{ margin-top:20px; position:absolute; left:150px; } #bt:hover{ background:green; font-size:13px; cursor:pointer; color:white; } </style> <script> function fa(){ if(a.value=="" || b.value==""){ f() document.getElementById("a").style.border="3px solid red" document.getElementById("b").style.border="3px solid red" bt.value="Pahila data tak" } else{ document.getElementById("a").style.border="3px solid green" document.getElementById("b").style.border="3px solid green" bt.value="Ha thik ahe ata" bt.style.left="120px"; } } flag=1 function f(){ if(flag==1){ bt.style.left="210px" flag=2 } else if(flag==2){ bt.style.left="80px" flag=1 } } </script> </head> <body> <div class="outer"> <h1 style="text-align:center">Legend form</h1> <p>Enter Id</p> <input class="in" type="text" placeholder="Enter id" id="a"/> <p>Enter Confirm Pass</p> <input class="in" type="password" placeholder="Enter password" id="b"/> <br> <input type="submit" onmouseenter="fa()" onclick="alert('waaaa')" id="bt" /> </div> </body> </html> Join for more: https://t.me/webdevcoursefree