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Popular Articles (Last 30 Days)

1. How is HashSet implemented internally in Java?

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2. Immutable class with mutable member fields in Java

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3. How does HashMap work internally in Java?

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4. N Queen Problem Using Recursive Backtracking

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5. Hashtable vs SynchronizedMap vs ConcurrentHashMap

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Algorithms (3)

1. N Queen Problem Using Recursive Backtracking

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2. Sudoku Solver using Recursive Backtracking

   10,867 views

     

Core Java (30)

1. Hashtable vs SynchronizedMap vs ConcurrentHashMap

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2. How is HashSet implemented internally in Java?

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3. CountDownLatch Vs CyclicBarrier | Java Concurrency Utilities

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4. How does HashMap work internally in Java?

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5. What is the use of private constructor in java?

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6. Producer Consumer Design Pattern using wait() and notify()

   6,165 views

     
7. Java Method Overriding Interview Questions

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8. Immutable class with mutable member fields in Java

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9. How to create Immutable Class in Java

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10. Wrapper Classes | Interview Questions

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11. interrupt(), interrupted() and isInterrupted() in Java Multithreading

    3,991 views

      
12. Breaking Singleton using reflection and Enum Singleton

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13. Preventing Cloning in Singleton Design Pattern

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14. Java Method Overloading Interview Questions

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15. Threadpool using Executor Framework | Java Concurrency Utilities

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16. Singleton Design Pattern Using Double Checked Locking

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17. Private methods in Interface | Java 9

    3,174 views

      
18. Producer Consumer Design Pattern using BlockingQueue

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19. What is magic number CAFEBABE in java class file?

    3,015 views

      
20. CountDownLatch in Java Concurrency Utilities

    2,488 views

      
21. CyclicBarrier | Java Concurrency Utilities

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22. InterruptedException in Java Multithreading

    2,152 views

      
23. Marker Interface Interview Questions

    2,132 views

      
24. Performance Issue with HashSet RemoveAll() method

    1,911 views

      
25. Serialization and Singleton Design Pattern

    1,847 views

      
26. Defining and Starting a Thread | Thread VS Runnable

    1,465 views

      
27. Java Variables Interview Questions

    1,089 views

      
28. Java 9 Features

    939 views

      
29. JShell: The Java Shell and REPL | Java9

    360 views

      
30. Convenience Factory Methods for Collections | Java9

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Data Structure (4)

1. Stack Implementation Using Array

   1,898 views

     
2. Types of Binary Tree | Binary Tree Introduction

   1,797 views

     
3. Tree Data Structure Terminologies – Set 1

   1,154 views

     
4. Tree Data Structure Terminologies – Set 2

   749 views

     

Design Patterns (13)

1. What is the use of private constructor in java?

   6,394 views

     
2. Producer Consumer Design Pattern using wait() and notify()

   6,165 views

     
3. How to create Immutable Class in Java

   4,898 views

     
4. Breaking Singleton using reflection and Enum Singleton

   3,826 views

     
5. Preventing Cloning in Singleton Design Pattern

   3,714 views

     
6. Singleton Design Pattern Using Double Checked Locking

   3,260 views

     
7. Producer Consumer Design Pattern using BlockingQueue

   3,099 views

     
8. Producer Consumer Design Pattern

   2,554 views

     
9. Builder Design Pattern

   2,284 views

     
10. Mediator Design Pattern

    2,136 views

      
11. Serialization and Singleton Design Pattern

    1,847 views

      
12. Observer Design Pattern

    1,556 views

      

HTML (1)

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Java MultiThreading (11)

1. Hashtable vs SynchronizedMap vs ConcurrentHashMap

   17,802 views

     
2. CountDownLatch Vs CyclicBarrier | Java Concurrency Utilities

   7,529 views

     
3. Producer Consumer Design Pattern using wait() and notify()

   6,165 views

     
4. interrupt(), interrupted() and isInterrupted() in Java Multithreading

   3,991 views

     
5. Threadpool using Executor Framework | Java Concurrency Utilities

   3,288 views

     
6. Singleton Design Pattern Using Double Checked Locking

   3,260 views

     
7. Producer Consumer Design Pattern using BlockingQueue

   3,099 views

     
8. CountDownLatch in Java Concurrency Utilities

   2,488 views

     
9. CyclicBarrier | Java Concurrency Utilities

   2,362 views

     
10. InterruptedException in Java Multithreading

    2,152 views

      
11. Defining and Starting a Thread | Thread VS Runnable

    1,465 views

      

Javascript (1)

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Pumpkin Practice (9)

1. Snakes N Ladders | Java Program Implementation

   14,699 views

     
2. Tic Tac Toe | Java Program Implementation

   13,130 views

     
3. Program to find Unique Array Element

   9,004 views

     
4. Program to find nth digit of the series 3, 5, 6, 9, 10, 12, …

   2,445 views

     
5. Sudoku checker (By traversing each cell only once)

   1,891 views

     
6. Program to Check Whether a Number is Prime or Not

   1,014 views

     
7. Program to find number of set bits in the Binary number

   898 views

     
8. Program to check if a given number is power of two or not?

   830 views

     

SQL (2)

1. View vs Materialized View | Oracle SQL

   1,800 views

     
2. UNION Vs UNION ALL | Oracle SQL

   1,528 views