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A generic class hierarchy is when a generic class is extended by another class (which can be generic or non-generic). Java allows: A generic class to extend another generic class. A generic class to extend a non-generic class. A non-generic class to extend a generic class. This promotes code reuse, type safety, and flexibility in …
Generic Constructor A Generic Constructor is a constructor that defines its own type parameter(s) independent of the class’s type parameters. Even if the class is not generic, the constructor can be. Syntax of a Generic Constructor Example 1: Generic Constructor in a Non-Generic Class Example 2: Generic Constructor in a Generic Class Generic Static Methods …
A Generic Method is a method that can operate on different types of data. Instead of hardcoding a data type, it uses a type parameter (like <T>) to define the type when the method is called. Generic methods allow for: Code reuse Compile-time type safety No need for casting Syntax Program-1: Simple Generic Method Example …
Wildcard generics in Java provide flexibility in working with generic types by allowing unknown or partially constrained types in method parameters, return types, or fields. They are denoted by the ? symbol and are useful when you need to work with a range of types without specifying an exact type. Important Concepts of Wildcard Generics …
Wildcards Generics (Upper bounded, lower bounded, and unbounded) Read More »
Bounded type parameters restrict the types that can be used as arguments for a generic type parameter. This is achieved using the extends keyword, allowing you to specify that a type parameter must be a subtype of a particular class or interface (or the class/interface itself). Bounded type parameters enhance type safety and enable access …
In Java, Generic classes allow you to write flexible, reusable, and type-safe code by enabling classes, interfaces, and methods to operate on objects of various types while providing compile-time type checking. Generic Classes A generic class is a class that can work with any data type, specified via a type parameter. The type parameter acts …
Generics were introduced in Java with the release of J2SE 5.0 (Java 5) in September 2004. The primary motivation behind this addition was to enable developers to write more flexible and reusable code without sacrificing type safety. Before generics, collections were typically used with Object references, which required explicit casting and carried the risk of …
JEP 388: Windows/AArch64 Port introduces the official support for running Java on Windows systems with AArch64 (ARM 64-bit) architecture in Java 17. Prior to this enhancement, Windows support for ARM architecture was limited and often required workarounds or was not as fully supported as on x64 (Intel/AMD) systems. This improvement brings AArch64 support on Windows …
JEP 376: ZGC on Windows is an enhancement introduced in Java 17 that extends the support for Z Garbage Collector (ZGC) to the Windows platform. Prior to this enhancement, ZGC was available only on Linux and macOS. This update allows Java applications running on Windows to take advantage of the low-latency, scalable features of ZGC, …
Concurrent collections are specialized data structures in programming that facilitate safe and efficient manipulation of shared data by multiple threads in a concurrent environment. Traditional collections, like lists, queues, or maps, often face issues like race conditions when accessed by multiple threads simultaneously. Concurrent collections address these issues by providing built-in thread-safe operations. Concurrent collections …
