java的scanner怎样实现格式化输入

Java?Scanner???????nextInt(),nextDouble(),nextFloat()??????????????,??????????????,????java.util.Scanner.format()???

???????Scanner.format()?????:

import java.util.Scanner;
import java.util.Scanner.Format;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("???????(??:???):");
        int number = scanner.format("d", scanner.nextInt()).intValue();
        System.out.println("???????:" + number);

        System.out.println("???????(??:????):");
        double decimal = scanner.format("f", scanner.nextDouble()).doubleValue();
        System.out.println("???????:" + decimal);

        scanner.close();
    }
}

??????,????d?f???????d??????????,???????,?????0???f????????????,????????,?????0???

??:scanner.format()???????????,????????intValue()?doubleValue()???????????????