Coding Interview Resources

DSA roadmap

5 High-growth career paths in Tech: Tech careers in 2024 Discover the trends, skills, and opportunities that will define tech careers in 2024. 📆 Date: December 28th, 2023 🕒 Time:  8PM-10PM Free Registration Link: 👇👇 https://bit.ly/47clbV6 Don't miss out on this opportunity to elevate your Data Science career!  ENJOY LEARNING 👍👍

Typical C++ interview questions sorted by experience Junior: - What are the key features of object-oriented programming in C++? - Explain the differences between public, private, and protected access specifiers in C++. - Distinguish between function overloading and overriding in C++. - Compare and contrast abstract classes and interfaces in C++. - Can an interface inherit from another interface in C++? - Define the static keyword in C++ and its significance. - Is it possible to override a static method in C++? - Explain the concepts of polymorphism and inheritance in C++. - Can constructors be inherited in C++? - Discuss pass-by-reference and pass-by-value for objects in C++. - Compare == and .equals for string comparison in C++. - Explain the purposes of the hashCode() and equals() functions. - What does the Serializable interface do? How is it related to Parcelable in Android? - Differentiate between Array and ArrayList in C++. When would you use each? - Explain the distinction between Integer and int in C++. - Define ThreadPool and discuss its advantages over using simple threads. - Differentiate between local, instance, and class variables in C++. Mid: - What is reflection in C++? - Define dependency injection and name a few libraries. Have you used any? - Explain strong, soft, and weak references in C++. - Interpret the meaning of the synchronized keyword. - Can memory leaks occur in C++? - Is it necessary to set references to null in C++? - Why is a String considered immutable? - Discuss transient and volatile modifiers in C++. - What is the purpose of the finalize() method? - How does the try{} finally{} block work in C++? - Explain the difference between object instantiation and initialization. - Under what conditions is a static block executed in C++? - Why are generics used in C++? - Mention some design patterns you are familiar with. Which do you typically use? - Name some types of testing methodologies in C++. Senior: - Explain how std::stoi (string to integer) works in C++. - What is the "double-check locking" problem, and how can it be solved in C++? - Differentiate between StringBuffer and StringBuilder in C++. - How is StringBuilder implemented to avoid the immutable string allocation problem? - Explain the purpose of the Class.forName method in C++. - Define Autoboxing and Unboxing in C++. - What's the difference between Enumeration and Iterator in C++? - Explain the difference between fail-fast and fail-safe in C++. - What is PermGen in C++? - Describe a Java priority queue. - How is performance influenced by using the same number in different types: Int, Double, and Float? - Explain the concept of the Java Heap. - What is a daemon thread? - Can a dead thread be restarted in C++? ✅ Best Telegram channels to get free coding & data science resources https://t.me/addlist/XYopgGtDUp4zMDkx ENJOY LEARNING 👍👍

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? Source: medium.

PYTHON INTERVIEW QUESTIONS 1 what is python ? 2 why python ? 3 what are advantage of python ? 4 what is pep 8 ? 5. What do you mean by literal ? 6 explain python function ? 7 what is use of break statement ? 8 what is tuple ? 9 python libraries /module ? 10. What is an in operator in python ? 11 why python interpreted ? 12 how is memory managed in python ? 13 python decorator ? 14 global variable / local variable ? 15 what is iterators in python ? 16 what is slicing in python ? 17 what is a dictionary in python ? 18 what is pass in python ? 19 what isinit ? 20 what is self in python ? Most important for Technical round interview.

Hiring Opportunities 👇👇 https://www.linkedin.com/posts/sql-analysts_dataengineering-dataanalystjobs-jobapplication-activity-7142714660612485120-o6Mi?utm_source=share&utm_medium=member_android

Become a Software Developer in 2024 with this Free Masterclass 👇👇 https://bit.ly/3GOxpbI

𝗘𝘅𝗰𝗶𝘁𝗶𝗻𝗴 𝗢𝗽𝗽𝗼𝗿𝘁𝘂𝗻𝗶𝘁𝘆 𝗔𝗹𝗲𝗿𝘁 ! 🚀 𝐖𝐞 𝐚𝐫𝐞 𝐇𝐢𝐫𝐢𝐧𝐠 𝟏𝟎𝟎𝟎 𝐅𝐫𝐞𝐬𝐡𝐞𝐫 & 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 🌟 Job Details: 🌐 *Profile: Software Developer* 💰 *Package: Up to 20 LPA* 🎓 *Qualification: Any Graduation* 📅 *Passout Year: 2016 - 2024* 🌍 *Location: Pan India* 📣 *Test Date : 27 December* Note: ✅💥 🎓 𝐋𝐢𝐦𝐢𝐭𝐞𝐝 𝐒𝐞𝐚𝐭𝐬! 𝐒𝐞𝐥𝐞𝐜𝐭𝐢𝐨𝐧 𝐨𝐧 𝐚 𝐅𝐢𝐫𝐬𝐭 𝐂𝐨𝐦𝐞 𝐅𝐢𝐫𝐬𝐭 𝐒𝐞𝐫𝐯𝐞 𝐁𝐚𝐬𝐢𝐬. 🔗 Apply now: https://bit.ly/3uRySv7 𝐈𝐦𝐩 𝐍𝐨𝐭𝐞 -𝐑𝐞𝐠𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 𝐢𝐬 𝐌𝐚𝐧𝐝𝐚𝐭𝐨𝐫𝐲 𝐟𝐨𝐫 𝐓𝐞𝐬𝐭 𝐋𝐢𝐧𝐤 𝐃𝐨𝐧'𝐭 𝐦𝐢𝐬𝐬 𝐨𝐮𝐭 𝐨𝐧 𝐭𝐡𝐢𝐬 𝐢𝐧𝐜𝐫𝐞𝐝𝐢𝐛𝐥𝐞 𝐨𝐩𝐩𝐨𝐫𝐭𝐮𝐧𝐢𝐭𝐲! 🚀

What are the different Applications of Java? Mobile Applications Desktop GUI Web-based Applications Enterprise Applications Scientific Applications Gaming Applications Big Data technologies Business Applications Distributed Applications Cloud-based Applications

Java interview questions along with brief answers 1. What is the difference between == and .equals() in Java? - == compares object references, while .equals() compares the content of objects. 2. Explain the difference between ArrayList and LinkedList. - ArrayList uses a dynamic array to store elements, providing fast random access. LinkedList uses a doubly-linked list, offering efficient insertion and deletion. 3. What is the significance of the static keyword in Java? - The static keyword is used to create variables and methods that belong to the class rather than instances of the class. These can be accessed without creating an object. 4. What is the difference between an abstract class and an interface? - An abstract class can have both abstract (unimplemented) and concrete (implemented) methods, while an interface can only have abstract methods. A class can implement multiple interfaces, but it can extend only one abstract class. 5. What is the purpose of the finally block in exception handling? - The finally block is used to ensure that a specific block of code is always executed, regardless of whether an exception is thrown or not. 6. Explain the concept of multithreading in Java. - Multithreading is the concurrent execution of two or more threads. Threads allow programs to run tasks in parallel, improving performance. In Java, you can create threads by extending the Thread class or implementing the Runnable interface. 7. What is the NullPointerException and how can it be avoided? - NullPointerException occurs when you try to access a method or field of an object that is null. To avoid it, ensure that objects are properly initialized before accessing their members. 8. How does garbage collection work in Java? - Garbage collection is the process of automatically reclaiming memory occupied by unreferenced objects. Java uses a garbage collector to identify and delete objects that are no longer reachable. 9. Explain the final keyword in Java. - The final keyword can be applied to variables, methods, and classes. When applied to a variable, it means the variable's value cannot be changed. When applied to a method, it prevents method overriding. When applied to a class, it prevents the class from being subclassed. 10. What is the Java Virtual Machine (JVM)? - JVM is a virtual machine that executes Java bytecode. It abstracts the hardware and operating system details, allowing Java programs to run on any device with a compatible JVM. These questions cover a range of Java concepts commonly discussed in interviews. Be prepared to elaborate on your answers and provide examples if requested during an interview.

Learn Data science in your native language and earn upto 21 LPA! Certified by IIT Madras Pravartak, this is a 3-5 month course that comes with assured job opportunities! Click the link below to register now and start your career in data science - https://bit.ly/4834qfW

Are you ready to take your career to the next level? Don't settle for a stagnant SDE job, when you can climb the ladder to high-earning positions at Google, Microsoft, and other top product companies. Our free 1-on-1 counseling sessions are designed to boost your earnings potential and land your dream job. REGISTER NOW! 👇 https://l.hych.in/dtel

   🚀The news about the new Telegram channel is spreading in the internet. It allows absolutely everyone to earn money without having any special knowledge and skills.    💯The channel provides all the information that is required to earn your first money. The channel is an official and proven by hundreds of people real way of earning money. If you have long dreamed of changing your life for the better, resigning from an unloved job, increasing your income, you are lucky that you are watching this video right now, because this is your real chance to improve your quality of life once and for all and increase your income!    🔥You will be able to earn from 1000 dollars a month and above. Now the income will depend only on you! Right now, follow the link to the Telegram channel, subscribe and start earning right now 👉 https://t.me/+xaVw5goBuf41NjYx  👉 https://t.me/+xaVw5goBuf41NjYx