关于BufferedWriter构造器无法传递问题

首先，问题的原因是无法传递问题是指有的找不到对应包

java.io.BufferedWriter bufferedWriter =new java.io.BufferedWriter(new 
FileWriter("D:\学习\a.txt"));

在

BufferedWriter前面加上java.io就行了，

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


public class BufferedWriter {
    public static void main(String[] args) throws IOException {
        java.io.BufferedWriter bufferedWriter =new java.io.BufferedWriter(new FileWriter("D:\学习\a.txt"));
        for (int i = 0; i < 10; i++) {
            bufferedWriter.write("学习java"+i);
            bufferedWriter.newline();
        }
        bufferedWriter.flush();
        bufferedWriter.close();
//        BufferedReader bufferedReader =new BufferedReader(new FileReader("D:\学习\a.txt"));
//        String line;
//        while ((line=bufferedReader.readLine())!=null){
//            System.out.println(line);
//        }
//bufferedReader.close();
    }
}