Java从键盘录入并写入到文件中

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;

public class KeyinWriterTest {
    
    public static void main(String[] args) throws IOException {
        //键盘录入
        BufferedReader bfr = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw=new BufferedWriter(new FileWriter("fw.txt",true));
        String line;
        while((line=bfr.readLine())!=null){
            bw.write(line);

            bw.newLine();

            bw.flush();

        }

      //关闭流

        bw.close();
    }
}