Java Scanner _verified_ May 2026

To use the Scanner class, you must follow three basic steps: Java Scanner Class - Methods and Constructors - TechVidvan

The Scanner class uses a (by default, whitespace) to divide input into small pieces called tokens. For example, if a user enters "Hello 2024", the Scanner recognizes "Hello" as one token and "2024" as another. Developers can then use specific methods to "parse" these tokens into the desired data type, such as int , double , or String . Setting Up the Scanner java scanner

The class is one of the most fundamental tools for developers to capture and process user input. Part of the java.util package, it simplifies the task of reading data from various sources—including the console, files, and strings—by breaking input into meaningful "tokens". Core Concept: How Scanner Works To use the Scanner class, you must follow