输出绝对值(java代码)

解题思路:

注意事项:

参考代码:

import java.text.DecimalFormat;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        double num = input.nextDouble();

        double absNum = Math.abs(num);

        DecimalFormat df = new DecimalFormat("0.00");

        String absNumFormatted = df.format(absNum);

        System.out.println(absNumFormatted);

    }

}