1 · Foundations · lesson 6 of 41

Reading Input

Scanner for the console, and a peek at System.in.

Java

import java.util.Scanner;

public class Ask {
    public static void main(String[] args) {
        try (Scanner in = new Scanner(System.in)) {
            System.out.print("Your name: ");
            String name = in.nextLine();
            System.out.println("Hello, " + name);
        }
    }
}

TIP

try-with-resources auto-closes the Scanner even if an exception is thrown.

Key takeaways

✓Scanner wraps System.in for line/token/number reads.
✓Close I/O resources — try-with-resources handles it for you.

← Back to Java playground