Scanner

Scanner is a Java class in the java.util package used for parsing primitive types and strings from input sources such as files, strings, or standard input streams. It provides methods like nextInt(), nextLine(), and hasNext() to read and tokenize data efficiently, making it a fundamental tool for handling user input and file processing in Java applications.

Also known as: Java Scanner, Scanner class, java.util.Scanner, Scanner utility, Input scanner

Why learn Scanner?

Developers should learn Scanner when building Java applications that require interactive console input, reading from text files, or parsing structured data from strings. It is particularly useful for command-line tools, educational programs, and simple data processing tasks where easy-to-use input handling is needed without complex parsing logic.

Learning Resources

• docs: Oracle Java Scanner Documentation
• tutorial: W3Schools Java Scanner Tutorial
• tutorial: GeeksforGeeks Scanner in Java
• video: Java Scanner Class - YouTube Tutorial by Programming with Mosh
• book: Java: A Beginner's Guide - Book by Herbert Schildt