java按行讀取文件內容並輸出

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;


public class Output {
public static void main(String[] args)throws IOException{
File f = new File("E:/kddcup.data");
BufferedReader br = new BufferedReader(new FileReader(f));
int i = 0;
String s = br.readLine();
while(i<10&&s!=null){
System.out.println("行"+i+":"+s);
s = br.readLine();
i++;
}
}
}