题解 | #学生基本信息输入输出#

import java.util.Scanner;
public class Main {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        String str = sc.next();
        String[] str1 = str.split(";");
        String[] str2 = str1[1].split(",");
        double[] score = new double[3];
        for (int i = 0 ; i < 3; i++) {
            double num = Double.parseDouble(str2[i]);
            score[i] = (double)(Math.round(num * 100)) / 100;
        }
        System.out.println("The each subject score of No. " + str1[0] + " is " +
                           String.format("%.2f", score[0]) + ", " + String.format("%.2f",
                                   score[1]) + ", " + String.format("%.2f", score[2]) + ".");
    }
}