Discover the workings of WeakHashMap in Java, a unique collection class that uses weak references to its keys. Learn how it differs from HashMap, its memory management benefits, and how to use it with code examples.
The IdentityHashMap in Java is a specialized implementation of the Map interface that uses reference equality (i.e., ==) instead of object equality (equals()) for comparing keys and values. This feature makes it unique among the standard Map implementations like HashMap. It is useful in situations where object identity matters more than logical equality.
Explore the purpose and benefits of LinkedHashMap in Java. Understand how it works, compare it with HashMap, and learn its real-world applications with code examples.
Understand the significance and use of EnumSet and EnumMap in Java. Learn how these specialized collections can improve performance and simplify your code when dealing with enums in Java. This detailed guide provides code examples and insights into their practical applications.
Learn how to implement a FIFO (First-In-First-Out) cache in Java using the powerful LinkedHashMap. This step-by-step guide provides you with code examples and detailed explanations for creating a custom FIFO cache system.
In Java, sorting is a common operation that developers perform on collections. Two key interfaces, Comparable and Comparator, play a crucial role in defining how objects are compared and sorted. While both are used for comparing objects, they differ in implementation and use cases. This article will explore the distinctions between Comparable and Comparator, with clear code examples and real-world use cases.
Learn how to effectively sort a collection in Java using a custom comparator. This guide includes detailed examples, use cases, and best practices for sorting in Java, covering all necessary concepts and code examples.
The Comparable interface in Java is a fundamental part of the Java Collections Framework that allows objects to be compared and sorted. Learn about its implementation, methods, and real-world applications with detailed examples.
Learn about the most commonly used algorithms in Java’s Collections class, with code examples, to manipulate and manage data effectively.
Learn how to find the maximum or minimum element in a Java collection. This guide provides code examples and explains how to use built-in methods for arrays, lists, and other collections efficiently.