package io.sy;

import io.txtfile.TxtFile;

import java.io.*;

public class Sy4 {
 public static void main(String[] args) throws IOException {
 f3();
 }

 public static void f1() throws IOException {
 InputStream is = new FileInputStream(TxtFile.UTF8);
 InputStreamReader isr = new InputStreamReader(is, "UTF8");
 char[] buffer = new char[1024];
 while (true) {
 int len = isr.read(buffer, 0, buffer.length);
 if (len == -1) {
 break;
 }
 String s = String.valueOf(buffer, 0, len);
 System.out.println(s);
 }
 isr.close();
 is.close();
 }

 public static void f2() throws IOException {
 try (InputStream is = new FileInputStream(TxtFile.UTF8);
 InputStreamReader isr = new InputStreamReader(is, "UTF8") ) {
 char[] buffer = new char[1024];
 while (true) {
 int len = isr.read(buffer, 0, buffer.length);
 if (len == -1) {
 break;
 }
 String s = String.valueOf(buffer, 0, len);
 System.out.println(s);
 }
 }
 }

 // 按行读取
 public static void f3() throws IOException {
 try (InputStream is = new FileInputStream(TxtFile.UTF8);
 InputStreamReader isr = new InputStreamReader(is, "UTF8");
 BufferedReader br = new BufferedReader(isr)) {
 while (true) {
 String line = br.readLine();
 if (line == null) {
 break;
 }
 System.out.println(line);
 }
 }
 }
}