从文件中读，输入流，java

package com.company;
import java.io.*;

public class Main {

    public static void main(String[] args) {
   // write your code here
        BufferedReader br=null;//缓冲读
        try{
            br=new BufferedReader(new FileReader("D:\\练习.txt"));
            String result=null;
            while((result=br.readLine())!=null)
            {
                System.out.println(result);
            }

        }catch(IOException e)
        {
            e.printStackTrace();
        }finally {
            try {
                br.close();
            }catch (IOException e)
            {
                e.printStackTrace();
            }
        }
    }
}