LineNumberReader练习

package com.heima.lei;

import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.LineNumberInputStream;
import java.io.LineNumberReader;



public class Test3 {

    /**LineNumberReader练习 * @param args * @throws IOException */
    public static void main(String[] args) throws IOException {
        LineNumberReader lnr = new LineNumberReader(new FileReader("002.txt"));
        BufferedWriter bw = new BufferedWriter(new FileWriter("003.txt"));
        String line;
        lnr.setLineNumber(0);
        while((line = lnr.readLine()) != null){
            bw.write(lnr.getLineNumber() + ":"+line);
            bw.newLine();
        }
        //System.out.println(lnr.getLineNumber());
        lnr.close();
        bw.close();
    }

}