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String.format() Handbook 1. Quick Summary String.format() is a static method that returns a formatted string using a specified format string and arguments. It is effectively the sprintf o...

Java Deque Handbook 1. Quick Summary Deque (pronounced "deck") stands for Double Ended Queue . It is a linear collection that supports element insertion and removal at both ends. Inter...

Java Stack Handbook 1. Quick Summary The Stack class represents a Last-In-First-Out (LIFO) stack of objects. It extends class Vector , which means it is synchronized (thread-safe) but gen...

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Java Design Patterns: Memento 1. Quick Summary The Memento pattern is a behavioral design pattern that lets you save and restore the previous state of an object without revealing the details...