包装流的使用练习

package com.hspedu;
 
import com.hspedu.buffered.bufferedReader;
 
import java.io.*;
 
/**
 * @author: guorui fu
 * @versiion: 1.0
 */
public class Homework02 {
    public static void main(String[] args) throws IOException {
        /*要求：使用BufferedReader读取一个文本文件，为每行加上行号
        再连同内容一并输出到屏幕上。
         */
        String filePath = "e:\\news1.text";
        InputStreamReader inputStreamReader = new InputStreamReader(new FileInputStream(filePath),"gbk");
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
 
        String s = null;
        int lineNum = 0;
        while((s = bufferedReader.readLine()) != null){
            System.out.println(lineNum + " " + s);
            lineNum++;
        }
        //关闭
        if (bufferedReader != null) {
            bufferedReader.close();
        }
 
    }
}