Java读写文本文件操作

 package com.test;

 import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileWriter;
 import java.io.InputStreamReader;

 /**
  * Java读写文本文件操作
  *
  * @author penghuaiyi
  * @date 2011-07-25
  */
 public class TextUtils {

     //读取文本文件
     public static void readTxt(){
         try {
              File file = new File("c:/test.txt");
              if (file.isFile() && file.exists()) {
                 InputStreamReader read = new InputStreamReader(new FileInputStream(file));
                 BufferedReader br = new BufferedReader(read);
                 String lineTXT = null;
                 while ((lineTXT = br.readLine()) != null) {
                     System.out.println(lineTXT );
                 }
                 read.close();
              }
          } catch (Exception e) {
              e.printStackTrace();
          }
     }

     //写入文本文件
     public static void writeTxt(){
         try{
              File file = new File("c:/aa.txt");
              if(!file.exists()){
                  file.createNewFile();
              }
              FileWriter fw = new FileWriter(file);
              BufferedWriter bw = new BufferedWriter(fw);
              bw.write("aaaaaaaaa");
              bw.newLine();
              bw.write("bbbbbbbbb");
              bw.flush();
              bw.close();
              fw.close();
         }catch(Exception e){
            e.printStackTrace();
         }
     }

     public static void main(String[] args) {
         readTxt();
         writeTxt();
     }

 }