[数据结构与算法]95. BufferedReader读取排序，BufferedWriter写回去

package com.itheima.charstream1;

import java.io.*;
import java.util.Arrays;

public class CharStreamDemo14 {
    public static void main(String[] args) throws IOException {

        BufferedReader br = new BufferedReader(new FileReader(".\\sort.txt"));
        String line = br.readLine();
        System.out.println("读取到的数据："+line);
        String[] split = line.split(" ");
        int[] arr=new  int[split.length];
        for (int i = 0; i < split.length; i++) {
            String s = split[i];
            int number = Integer.parseInt(s);
            arr[i]=number;
        }
        Arrays.sort(arr);
        System.out.println(Arrays.toString(arr));
        br.close();

        BufferedWriter bw=new BufferedWriter(new FileWriter(".\\sort.txt"));
        for (int i = 0; i < arr.length; i++) {
            bw.write(arr[i]+" ");
            bw.flush();
        }
        bw.close();


    }
}

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