Core Java

Overview Concurrency Evolution and Topics Concurrency vs Parallelism Threads: A Quick Recap Threads Thread Creation Create Java Thread by Extending Thread class Create Java Thread by implementing Runnable Thread Subclass OR Runnable Implementation for Thread Creation Calling run() instead of start()Can we Start The Same Thread Twice in Java Thread Class Thread Class Intro Setting And Getting Java Thread Name And Thread ID Thread Name - Get and Set Get current Java Thread with Thread.currentThread method Pause Java Thread Stop Java Thread The Main Thread Types of Threads in Java Thread State Methods Thread Life Cycle and States in Java User Threads vs Daemon Threads in Java Thread Priorities Exceptions and Threads Thread.yield()Thread Properties or Attributes Intro 7 Things Every Java Programmer Should Know About Threads In Java Race Conditions and Critical Section Data Race Problem What Is Thread Safety?Thread Safety Issues Thread Safety in Java How to Build a Thread-Safe Class Thread Safety and Shared Resources Thread Safety and Immutability Thread Safety Issue: Visibility Thread Safety Issue: Race Conditions Thread Safety Strategies Atomicity and Locking Thread Safe vs Thread Compatible Composing Thread-Safe Objects Happens-Before Guarantee Statement Reordering and Visibility Synchronized Blocks synchronized Keyword Objects as Locks Good practices to use synchronized blocks Issues with Synchronization Interrupts and Join Deadlock, Livelock and Starvation Basics Concurrency and Synchronization Can two threads call a synchronized method and normal method at the same time volatile keyword CPU Cache Coherence in Java Concurrency False Sharing in Java ThreadLocal Publishing, Escape and Thread Confinement ThreadLocal as a Container ThreadLocal Example - When and How to Use Tasks and Executors Overview ExecutorService Executors and Fixed Thread Pools ThreadPoolExecutor ThreadPoolExecutor - Java Thread Pool Example ThreadPoolExecutor and BlockingQueue Example ThreadPoolExecutor + Callable + Future Example ScheduledExecutorService Task Scheduling with Executors - ScheduledThreadPoolExecutor Example Synchronous Tasks Callable Callable Tasks Reference Runnable vs Callable in Java Callable and Future in Java concurrency Callable Future Future Explained FutureTask Example Program ExecutorCompletionService Asynchronous Tasks Synchronous vs Asynchronous Execution CompletableFuture UI Callbacks Lock Locks in Java ReentrantLock and Conditions Reentrance Lockout ReadWriteLock Read Write Locks in Java Binary Semaphore vs Reentrant Lock Deadlock between Threads Deadlock Prevention in Java How to write deadlock and resolve in java Lock Reentrance Lock vs monitor in java Monitors – The Basic Idea of Java Synchronization Thread Signaling Thread Join Inter-Thread Communication notify vs notifyAll In Java Print Numbers Sequentially Using Even and Odd Threads Using wait and notifyAll to Coordinate Threads Thread wait, notify and notifyAll Example notify() and wait() examples Why wait(), notify() And notifyAll() Methods Are in Object Class And Not in Thread Class Why wait(), notify() And notifyAll() Must be Called Inside a Synchronized Method or Block Difference Between sleep() and wait()Busy Waiting Thread Termination in java Always terminate the thread which it is interrupted run() vs start() Quiz Thread - Interrupts and Join Thread Scheduling - Priority Of A Thread In Java Thread Dumps: jcmd, jstack, kill -3 and VisualVM Virtual Threads Concurrency Study Guide Thread Synchronization Hands-On Threads Hands-On: Scheduling and Interruption Servlet and JSP Thread Safety Concurrency Models Concurrency Models and Distributed System Similarities Shared State VS Separate State in Concurrency Models Parallel Workers Concurrency Model Assembly Line Concurrency Model Functional Parallelism Concurrency Model Which Concurrency Model is Best How to Synchronize ArrayList, HashSet and HashMap Same-Threading: Share-Nothing Concurrency Single-Threaded Concurrency: Thread Loops and Agents Static vs Volatile in Java

Access Modifiers and Inheritance

Class Inheritance with extends Keyword

Inheritance Types

Inheritance vs. Composition in Java

Multiple Inheritance in Java

Nested Classes and Inheritance

Inheritance

super keyword

Super VS This Keyword

Method Hiding

Abstract vs Final classes

Auto-Up Derived Casting

Call Parent Class Constructor in Java

Calling Super Class Methods with super Keyword in Java Method Overriding

Constructor Overriding Not Allowed

Derived Casting

Explicit Down Derived Casting

Field Overriding Not Possible

final Classes

How Java Compiler Generate Code for Overloaded and Overridden Methods

instanceof Operator Explained

instanceof With Downcasting

Method Overloading vs Overriding In Java

method overriding covariant return type

Method Overriding

Overloading, Overriding and Method Hiding

Concurrency Fundamentals

Difference Between sleep() and wait()

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