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Abstract illustration of a lock or seal representing the final keyword in Java, with a class, method, and variable symbol.
Java

Java Final Keyword: Usage and Behavior

Illustration of a Java final variable as a locked reference, with a single assignment arrow and a forbidden second assignment symbol.
Java

Java Final Variable: Syntax, Behavior, and Use Cases

Diagram contrasting explicit Dispose calls with garbage collector finalization timing in C#.
C#

C# Dispose vs Destructor: Key Differences Explained

Illustration of C# variable declaration showing type, name, and value assignment in a code editor.
C#

C# Variable Declaration: Syntax and Practical Usage

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Illustration of a Java local variable scope inside a code block, with a highlighted variable and its block boundaries.
Java

Java Local Variable Scope and Rules

Understand Java local variables: scope, lifetime, shadowing, effectively final rules, and var usage with practical code examples.

local variablesJava scopevar keywordeffectively final
Illustration of Java variable initialization showing default values and initialization order in a class diagram.
Java

Java Variable Initialization: Rules and Defaults

Java applies different initialization rules to fields, local variables, static members, and final variables. This article covers default values, definite assignment, initialization order, and common pitfalls.

Javavariable initializationdefault valuesfinal variables
Illustration of Java variable declaration showing a code snippet with type and variable name
Java

Java Variable Declaration: Syntax, Scope, and var

Learn how Java variable declaration works: syntax, initialization, scope, final variables, and local variable type inference with var.

Javavariable declarationtype inferencefinal keyword
Comparison of C# using statement and Dispose method for resource management
C#

C# using vs Dispose: When to Use Each

Understand the difference between C#'s using statement and calling Dispose directly, with practical guidance for IDisposable cleanup and exception safety.

C#IDisposableusing statementresource management
Diagram contrasting explicit Dispose calls with garbage collector finalization timing in C#.
C#

C# Dispose vs Destructor: Key Differences Explained

c# dispose vs destructor: Understand the difference between Dispose and destructors in C#, when each runs, and how to manage unmanaged resources correctly.

IDisposableFinalizerGarbage CollectionResource Management
Diagram showing a C# lambda expression with a default value assigned to a parameter, highlighting C# 12 syntax.
C#

C# Lambda Default Parameters: Syntax and Limits

Learn how to use default values in C# lambda expressions: C# 12 syntax, compile-time rules, call-site behavior, and workarounds for older versions.

C#LambdaDefault ParametersC# 12
Diagram illustrating C# primary constructor class syntax with parameters and class body.
C#

C# Primary Constructors for Classes: Syntax and Usage

Learn how to use C# primary constructors for classes: syntax, initialization, dependency injection, and limitations with practical examples.

C#Primary ConstructorsClass DesignDependency Injection
Illustration of C# reflection retrieving attributes from a class member
C#

C# Reflection: Get Attributes from Types and Members

Learn how to use C# reflection to retrieve custom attributes from types and members, including inheritance behavior and performance considerations.

ReflectionAttributesC#Metadata
Illustration of sorting elements using a custom IComparer in C#
C#

C# IComparer: Custom Sorting with IComparer<T>

Learn how to implement IComparer<T> in C# to define custom sort order for arrays and lists, handle nulls, and avoid common performance pitfalls.

IComparerC# SortingComparison<T>Custom Comparer
Diagram showing the relationship between async, await, and Task in C#
C#

C# async/await and Task Relationship Explained

Understand how C# async, await, and Task fit together: how async methods return Task, when await suspends execution, and how exceptions propagate across the task boundary.

asyncawaitTaskasynchronous programming