Web Reference: Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array). Nov 8, 2025 · The java.util package is one of the most widely used packages in the Java programming language. It provides a set of utility classes that support data structures, date and time manipulation, random number generation, event handling, and other commonly used functionalities in Java programs. Feb 4, 2026 · A utility class in Java is a class that provides static methods that are accessible for use across an application. The static methods in utility classes are used for performing common routines in our application.
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