举重成绩单

AnalysisResult.java

import java.io.*;
import java.util.*;
public class AnalysisResult {
    public static void main(String args[]) {
        File fRead = new File("F:\JJJ\score.txt");  //文件路径
        File fWrite = new File("F:\JJJ\socreAnalysis.txt");//文件路径
        try{   Writer out = new FileWriter(fWrite);//以尾加方式创建指向文件fWrite的out流
            BufferedWriter bufferWrite = new BufferedWriter(out);//创建指向out的bufferWrite流
            Reader in = new FileReader(fRead);//创建指向文件fRead的in流
            BufferedReader bufferRead =new BufferedReader(in);//创建指向in的bufferRead流
            String  str = null;
            while((str=bufferRead.readLine())!=null) {
                double totalScore=Fenxi.getTotalScore(str);
                str = str+" 总成绩:"+totalScore;
                System.out.println(str);
                bufferWrite.write(str);
                bufferWrite.newLine();
            }
            bufferRead.close();
            bufferWrite.close();
        }
        catch(IOException e) {
            System.out.println(e.toString());
        }
    }
}

注：记得创建txt文件以及修改文件路径。

Fenxi.java

import java.util.*;
public class Fenxi {
    public static double getTotalScore(String s) {
        String regex = "[^0123456789.]"; //匹配非数字的正则表达识
        String digitMess = s.replaceAll(regex, "*");
        StringTokenizer fenxi = new StringTokenizer(digitMess, "*");
        double totalScore = 0;
        while (fenxi.hasMoreTokens()) {
            double score = Double.parseDouble(fenxi.nextToken());
            totalScore = totalScore + score;
        }
        return totalScore;
    }
}

运行结果：