Coding Interview Resources
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This channel contains the free resources and solution of coding problems which are usually asked in the interviews.

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Top 15 #AI websites for #Interview Preparations for #Jobseekers!

1) Huru.ai
AI-powered interview prep with tailored questions.

2) Talkberry.ai
Language learning with simulated English job interviews.

3) Interviewigniter.com
AI roleplay simulations for post-interview evaluations.

4) AI Mock Interview - (Sqlpad.io)
Tailored interview practice with personalized feedback.

5) Rightjoin.co
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6) Interviewsby.ai
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Practice platform for answering interview questions with transcription.

13) Metaview.ai
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15) Hnresumetojobs.com
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16) Matchthaoleai.com
Job search
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Job trends for software developers in the next 5 years:

[1] Most startups are starting to realize that they need to control profits, not just revenues. Many unicorns who were on track to their IPO had to delay their IPOs due to lack of profitability.

For software developers: This means that startups may be less likely to offer high salaries to attract new talent. However, it also means that startups are becoming more focused on profitability, which is a good thing for the industry in the long term.

[2] All smart CEOs have started to focus on their personal brands. This is evident on LinkedIn as well. People like to buy from people, not from companies. Therefore, almost every 'Shark' now feature on their own advertisement. Why? Personal brand.

Take a cue and start cultivating your personal brand as well.

For software developers: Building a personal brand is a great way to attract new job opportunities and build a following. You can do this by writing blog posts, creating videos, or speaking at industry events.

[3] Gone are the days when you could depend on 1 job. Firms are not loyal to you. And, any smart employee can see through this. If you are not building backups already, you are doing yourself a disservice. And, the volatile job market is might one day hit you badly.

For software developers: Software developers are in high demand, so they have more flexibility to take on multiple jobs. This can be a great way to increase income and diversify your skills. For example, you could work as a full-time software engineer and also freelance as a software developer on the side.

[4] Rise of remote jobs:

To cut the long story short, if work could be done from home, why would you waste your time, effort, energy travelling? Not every job fits into 'work from home' culture, but many do.

For software developers: Software development is a job that can easily be done remotely, so many companies are now offering remote positions. This can be a great benefit for software developers who want more flexibility in their work-life balance.

[5] With the rise of financial & career education, most people would prefer decent money + family time (OVER) crazy money + no time.

And owning small businesses is one way of fulfilling this goal.

For software developers: Starting a small business can be a great way for software developers to have more control over their work and earn more money. Some examples of small businesses that software developers can start include developing and selling software products, providing software consulting services, or freelancing as a software developer.

6] As more and more businesses move online, the demand for software developers will continue to grow. Software developers are responsible for building and maintaining the digital infrastructure that businesses need to operate in the digital age.

P.S. I am not an expert and these are speculations
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Essential API Tools for 2023

APIs are now the backbone of most digital projects. ๐ŸŒ To make sure you're all geared up for 2023, I've laid down a bunch of top tools by category. Dive in! ๐ŸŠโ€โ™‚๏ธ

๐Ÿ” ๐——๐—ฒ๐˜€๐—ถ๐—ด๐—ป & ๐——๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜:
- Swagger (OpenAPI) for spec ๐Ÿ“
- RAML, PAML & API Blueprint for languages ๐Ÿ–Š๏ธ
- Postman for that nifty design & testing ๐Ÿ› ๏ธ
- Mockoon for mock servers ๐Ÿ‘จโ€๐Ÿ’ป

๐Ÿ’ผ ๐——๐—ฒ๐—ฝ๐—น๐—ผ๐˜†๐—บ๐—ฒ๐—ป๐˜ & ๐— ๐—ฎ๐—ป๐—ฎ๐—ด๐—ฒ๐—บ๐—ฒ๐—ป๐˜:
- API {REST} & FakeRest for deployment ๐Ÿš€
- Big names like Apigee, MuleSoft Anypoint, IBM API Connect & more for management ๐Ÿข

๐Ÿงช ๐—ง๐—ฒ๐˜€๐˜๐—ถ๐—ป๐—ด:
- APACHE JMeterโ„ข & JMeter for load testing โš–๏ธ
- SoapUI for functional tests ๐Ÿงซ
- Rest-Assured & more for mock & test ๐Ÿง

๐Ÿ”„ ๐—–๐—ผ๐—ฑ๐—ฒ ๐—š๐—ฒ๐—ป๐—ฒ๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป:
- Swagger & RAML Codegen to help churn out that code ๐Ÿ’ป

๐Ÿ” ๐—ฆ๐—ฒ๐—ฐ๐˜‚๐—ฟ๐—ถ๐˜๐˜†:
- From general tools like Postman to niche ones like OWASP ZAP & API Fortress ๐Ÿ›ก๏ธ
- Autho, Okta & Keycloak got your back for auth ๐Ÿšช

๐Ÿ“Š ๐— ๐—ผ๐—ป๐—ถ๐˜๐—ผ๐—ฟ๐—ถ๐—ป๐—ด:
- Monitoring gods like New Relic, Datadog, & AppDynamics ๐Ÿ–ฅ๏ธ

๐Ÿ›ก ๐—ฃ๐—ฟ๐—ผ๐˜๐—ฒ๐—ฐ๐˜๐—ถ๐—ผ๐—ป:
- Cloudflare, AWS WAF & Azure Firewall for that sturdy protection ๐Ÿšซ
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5 Sites to Level Up Your Coding Skills ๐Ÿ‘จโ€๐Ÿ’ป๐Ÿ‘ฉโ€๐Ÿ’ป

๐Ÿ”น leetcode.com
๐Ÿ”น hackerrank.com
๐Ÿ”น w3schools.com
๐Ÿ”น datasimplifier.com
๐Ÿ”น hackerearth.com
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Hack Your Job Search
The Authoritative Guide to Landing a Mobile Dev Interview
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https://t.me/InterviewBooks/193
Real-world Data Science Projects
๐Ÿ‘‡๐Ÿ‘‡
https://t.me/sqlproject
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Complete DSA Roadmap

|-- Basic_Data_Structures
| |-- Arrays
| |-- Strings
| |-- Linked_Lists
| |-- Stacks
| โ””โ”€ Queues
|
|-- Advanced_Data_Structures
| |-- Trees
| | |-- Binary_Trees
| | |-- Binary_Search_Trees
| | |-- AVL_Trees
| | โ””โ”€ B-Trees
| |
| |-- Graphs
| | |-- Graph_Representation
| | | |- Adjacency_Matrix
| | | โ”” Adjacency_List
| | |
| | |-- Depth-First_Search
| | |-- Breadth-First_Search
| | |-- Shortest_Path_Algorithms
| | | |- Dijkstra's_Algorithm
| | | โ”” Bellman-Ford_Algorithm
| | |
| | โ””โ”€ Minimum_Spanning_Tree
| | |- Prim's_Algorithm
| | โ”” Kruskal's_Algorithm
| |
| |-- Heaps
| | |-- Min_Heap
| | |-- Max_Heap
| | โ””โ”€ Heap_Sort
| |
| |-- Hash_Tables
| |-- Disjoint_Set_Union
| |-- Trie
| |-- Segment_Tree
| โ””โ”€ Fenwick_Tree
|
|-- Algorithmic_Paradigms
| |-- Brute_Force
| |-- Divide_and_Conquer
| |-- Greedy_Algorithms
| |-- Dynamic_Programming
| |-- Backtracking
| |-- Sliding_Window_Technique
| |-- Two_Pointer_Technique
| โ””โ”€ Divide_and_Conquer_Optimization
| |-- Merge_Sort_Tree
| โ””โ”€ Persistent_Segment_Tree
|
|-- Searching_Algorithms
| |-- Linear_Search
| |-- Binary_Search
| |-- Depth-First_Search
| โ””โ”€ Breadth-First_Search
|
|-- Sorting_Algorithms
| |-- Bubble_Sort
| |-- Selection_Sort
| |-- Insertion_Sort
| |-- Merge_Sort
| |-- Quick_Sort
| โ””โ”€ Heap_Sort
|
|-- Graph_Algorithms
| |-- Depth-First_Search
| |-- Breadth-First_Search
| |-- Topological_Sort
| |-- Strongly_Connected_Components
| โ””โ”€ Articulation_Points_and_Bridges
|
|-- Dynamic_Programming
| |-- Introduction_to_DP
| |-- Fibonacci_Series_using_DP
| |-- Longest_Common_Subsequence
| |-- Longest_Increasing_Subsequence
| |-- Knapsack_Problem
| |-- Matrix_Chain_Multiplication
| โ””โ”€ Dynamic_Programming_on_Trees
|
|-- Mathematical_and_Bit_Manipulation_Algorithms
| |-- Prime_Numbers_and_Sieve_of_Eratosthenes
| |-- Greatest_Common_Divisor
| |-- Least_Common_Multiple
| |-- Modular_Arithmetic
| โ””โ”€ Bit_Manipulation_Tricks
|
|-- Advanced_Topics
| |-- Trie-based_Algorithms
| | |-- Auto-completion
| | โ””โ”€ Spell_Checker
| |
| |-- Suffix_Trees_and_Arrays
| |-- Computational_Geometry
| |-- Number_Theory
| | |-- Euler's_Totient_Function
| | โ””โ”€ Mobius_Function
| |
| โ””โ”€ String_Algorithms
| |-- KMP_Algorithm
| โ””โ”€ Rabin-Karp_Algorithm
|
|-- OnlinePlatforms
| |-- LeetCode
| |-- HackerRank
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Ace Your Interviews with These Proven Tips
๐Ÿ‘‡๐Ÿ‘‡
https://www.linkedin.com/posts/sql-analysts_interview-tricks-activity-7129126516449234944-Wov1

Like the post if you need more content like this โค๏ธ
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Do you want to know how to find recruiters on LinkedIn at any company?
Anonymous Poll
77%
Yes
23%
No
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Useful Websites.pdf_20231118_154343_0000.pdf
608.9 KB
Useful Websites for Jobs & Resume
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Next giveaway on DSA Handbook+Notes?
Anonymous Poll
95%
Yes
5%
No
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๐Ÿฒ๐Ÿฌ ๐—บ๐—ถ๐—ป๐—ฑ-๐—ฏ๐—น๐—ผ๐˜„๐—ถ๐—ป๐—ด ๐—”๐—œ ๐˜๐—ผ๐—ผ๐—น๐˜€ ๐—ฏ๐—ฒ๐˜๐˜๐—ฒ๐—ฟ ๐˜๐—ต๐—ฎ๐—ป ๐—–๐—ต๐—ฎ๐˜๐—š๐—ฃ๐—ง that no one else will tell you about!
๐Ÿ‘‡๐Ÿ‘‡
https://www.linkedin.com/posts/sql-analysts_data-analysis-books-activity-7136045145229041664-uVUm?utm_source=share&utm_medium=member_android
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_Operating System RoadMap
|
|-- Kernel
| |-- Memory Management
| | |-- Paging
| | |-- Segmentation
| | |-- Virtual Memory
| |
| |-- Process Management
| | |-- Process Scheduling
| | |-- Inter-Process Communication (IPC)
| | |-- Threads
| |
| |-- File System
| | |-- File I/O
| | |-- Directory Structure
| | |-- File Permissions
| |
| |-- Device Drivers
| | |-- Communication with Hardware
| | |-- Input/Output (I/O)
| |
| |-- System Calls
| |-- Interface to Kernel Functionality
| |-- Examples: open(), read(), write(), etc.
|
|-- Memory Management
| |-- RAM
| | |-- Stack
| | |-- Heap
| | |-- Data Segment
| | |-- Code Segment
| |
| |-- Cache
| | |-- L1, L2, L3 Caches
| |
| |-- Virtual Memory
| |-- Page Table
| |-- Page Replacement Algorithms
| |-- Swapping
|
|-- File System
| |-- File Organization
| |-- File Allocation Table (FAT)
| |-- Inodes
| |-- File Access Methods
|
|-- Networking
| |-- TCP/IP
| |-- Protocols
| |-- Network Stack
| |-- Routing
| |-- Firewalls
|
|-- Security
| |-- Authentication
| |-- Authorization
| |-- Encryption
| |-- Access Control Lists (ACL)
|
|-- Process Management
| |-- PCB (Process Control Block)
| |-- Context Switching
| |-- Deadlocks
| |-- Synchronization
| |-- Mutual Exclusion
|
|-- Device Management
| |-- I/O Buffering
| |-- Device Controllers
| |-- Interrupt Handling
| |-- DMA (Direct Memory Access)
|
|-- User Interface
| |-- Graphical User Interface (GUI)
| |-- Command Line Interface (CLI)
| |-- Windowing Systems
|
|-- Shell
| |-- Command Interpreter
| |-- Scripting
| |-- Job Control
|
|-- System Utilities
| |-- Task Manager
| |-- Disk Cleanup
| |-- System Monitor
| |-- Backup and Restore
|
|-- Boot Process
| |-- BIOS/UEFI
| |-- Boot Loader
| |-- Kernel Initialization
| |-- Init Process
|
|-- System Libraries
| |-- Standard C Library
| |-- POSIX Library
| |-- WinAPI (for Windows)
|
|-- System Calls
| |-- File System Calls
| |-- Process Control Calls
| |-- Memory Management Calls
| |-- Communication Calls
|
|-- Error Handling
| |-- Error Codes
| |-- Logging
| |-- Recovery Strategies
|
|-- Distributed Systems
| |-- Clustering
| |-- Load Balancing
| |-- Distributed File Systems
|
|-- Cloud Computing
| |-- Virtualization
| |-- Infrastructure as a Service (IaaS)
| |-- Platform as a Service (PaaS)
| |-- Software as a Service (SaaS)
|
โ””-- Comments
|-- // Single-line comment
โ””-- /* Multi-line comment */
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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.
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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
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