Scanner demo

public class ScannerDemo {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.nextLine();
        int i = scanner.nextInt();
        double d = scanner.nextDouble();
        // etc., get other things from scanner

        // make sure to close scanner when you are done with it
        // important: you cannot reopen the scanner again after you close it
        scanner.close();
    }
}