java读取文本文件内容并获取文件大小

shuai1234

import java.io.BufferedReader;   
import java.io.File;   
import java.io.FileInputStream;   
import java.io.FileReader;   
import java.io.IOException;   
public class FileContent {   
    private String path = "F:\\下载说明.txt";   
    public FileContent() throws IOException    
    {   
        File f = new File(path);   
        FileReader fileReader = new FileReader(f);   
        BufferedReader br = new BufferedReader(fileReader);   
        String str;   
        while((str = br.readLine() ) != null)   
        {   
            System.out.println(str);   
        }   
        System.out.println(new FileInputStream(new File(path)).available() / 1024 / 1024 +"M");   
    }   
       
    public static void main(String[] args) {   
        try {   
            new FileContent();   
        } catch (IOException e) {   
            e.printStackTrace();   
        }   
    }   
}