👉 Exception Handling & Concurrency in Java vs C# – Simple Guide

📅 Exception Handling & Concurrency (Java vs C#)

Post Hook: “Tasks are not threads.” ⚡🧵

In this article, we compare how Java ☕ and C# 🔷 handle exceptions and concurrency. Understanding these helps you write robust and scalable programs.

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🛑 Exception Handling (try-catch-finally)

Java ☕

• try: Wrap code that may cause an exception
• catch(ExceptionType e): Handle the error
• finally: Always executes (cleanup)

try {
    int result = 10 / 0;
} catch (ArithmeticException e) {
    System.out.println("Cannot divide by zero");
} finally {
    System.out.println("Cleanup code here");
}

C# 🔷

• try: Wrap code that may cause an exception
• catch(Exception e): Handle the error
• finally: Always executes (cleanup)

try {
    int result = 10 / 0;
} catch (DivideByZeroException e) {
    Console.WriteLine("Cannot divide by zero");
} finally {
    Console.WriteLine("Cleanup code here");
}

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📝 Custom Exceptions

Java ☕

class MyException extends Exception {}
throw new MyException();

C# 🔷

class MyException : Exception {}
throw new MyException();

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🧵 Concurrency: Thread vs Task

Java ☕

• Thread: Basic unit of execution
• Use Runnable or Thread class

Thread t = new Thread(() -> System.out.println("Running"));
t.Start();

C# 🔷

• Task: Represents asynchronous operation
• Runs on CLR (Common Language Runtime)
• More flexible than raw threads

Task t = Task.Run(() => Console.WriteLine("Running"));
await t;

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⚡ Async / Await in C#

Used to write asynchronous code that is readable like synchronous code.

async Task ExampleAsync() {
    await Task.Delay(1000);
    Console.WriteLine("Finished async task");
}

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🆚 Java Thread vs C# Task

• Java uses Thread class or Runnable
• C# uses Task on CLR, often with async/await
• Tasks are easier to manage, can run multiple operations concurrently

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🎯 Key Takeaway

• Use try-catch-finally to handle errors safely
• Custom exceptions improve code clarity
• Java Threads vs C# Tasks: Tasks are lightweight and easier to manage
• Async / Await in C# makes concurrency simple and readable
  
  
  

  

  Compare Java and C# exception handling, custom exceptions, threads, tasks, and async/await in a simple developer-friendly infographic.