java–讀取文字檔內容 && 擷取檔案大小

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