Java from entry to master chapter exercises - Chapter 15

Exercise 1 outputs the Java code written by this class

Comprehensive exercise 1: Output the Java code written in this class Create a MyReader class, write code in this class to read all the codes in the file of this class, and output these codes to the console.

package org.hj.chapter15;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class MyReader {
    
    

    public static void main(String[] args) {
    
    
        try {
    
    
            // 使用 BufferedReader 读取本类文件
            BufferedReader reader = new BufferedReader(new FileReader("D:\\IdeaProject\\exercise\\JavaBaseExercise\\src\\main\\java\\org\\hj\\chapter15\\MyReader.java"));
            String line;
            // 逐行读取并输出
            while ((line = reader.readLine()) != null) {
    
    
                System.out.println(line);
            }
            //关流！！！
            reader.close();
        } catch (IOException e) {
    
    
            e.printStackTrace();
        }
    }
}

Exercise 2 records all file/folder names

Comprehensive exercise 2: Record all file/folder names Save all file/folder names in the Windows folder of the C drive in a text file.
I tried to increase the width occupied by the desktop icons, and it was solved after restarting. This exercise will be avoided (manual dog head).

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