每行读取文件

import java.io.*;
import java.util.*;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.lang.String;
import java.awt.*;

//
//
// Red
//public class Red 

{

public static void main(String []args) throws IOException
{
   // int aac;
   //输出原文件
   System.out.println("Program Beginning ... ...");
   FileInputStream inStream = new FileInputStream("E://txt.txt"); //文件放在本程序的  

int inread = inStream.available();                                                     //同一文件目录下
                  

   byte inword[] = new byte[inread];
   int bytesRead = inStream.read(inword,0,inread);
   System.out.println(new String(inword,0));
 
   char ttc[] = new char[inread+2];
   String readouts[] = new String[10];
   System.out.println("...............................");
  
   int cline = 0 ;  
   int bline = 0 ;
   int eline = 0 ;
   //一次取一行将原文件内容归纳成按行存储的输入流
   ttc[inread] = 13;
   ttc[inread+1] = 10;
   for(int i = 0 ; i < inread ; i++)
   {
    ttc[i] = (char) inword[i];
    System.out.print(ttc[i]);
    if(ttc[i] == 10 || i == (inread-1))
    {
     eline = i;
     if(i == (inread-1))
      readouts[cline] = new String(ttc,bline,(eline-bline+3));

     else
     readouts[cline] = new String(ttc,bline,(eline-bline+1));
     bline = i+1;
     cline++;
    }
   }
   System.out.println();
   System.out.println("...............................");
   inStream.close();
   //将每行的内容在屏幕上显示一遍
   int num =0;
   for(int l = 0 ; l < cline ; l++)
   {
    System.out.print("&&&&&&&&&&&&&&&"+num++ +readouts[l]);
   }
 
   System.out.println(); //输入一空行。
   //compare 按字典顺序对比，并按照顺序排序
   String abba = new String();
   for(int bn = 0 ; bn < cline-1 ; bn++)
   {
    for(int m = 0 ; m < cline-1-bn ; m++)
    {
     int duibi = readouts[m].compareTo(readouts[m+1]);
     if(duibi > 0 )
     {
      abba = readouts[m];
      readouts[m] = readouts[m+1];
      readouts[m+1] = abba;
     }
    }
   }
   System.out.println("This documents 'flow' has been sort now...");
   // cout the sort string 输出排好顺序的每行内容
   for(int l = 0 ; l < cline ; l++)
   {
    System.out.print(readouts[l]);
   }

   ///write string in txt 输出一行...号
   System.out.println(".................");

   // cout if documents exist判断文件是否存在，不存在则创建一新文件
   File testtxt = new File("");
   if(testtxt.exists() == false)
   {
    System.out.println("d.txt is not exist");
    System.out.println("Creat new documents now....waiting.....");
    testtxt = new File("E://d.txt");
   }
    else System.out.println("Have found the document /" d.txt/" ");

   if(testtxt.exists() == true)
    System.out.println("Creat /"d.txt/" successly...Congratulation!!!");
   //利用新创立的文件，创建一个输出流，以方便写入文件
   FileOutputStream outStream = new FileOutputStream("E://d.txt");
   String houl = new String();
   //将排好顺序的内容合并到一个字符串中
   for(int i = 0 ; i < cline ; i++)
   {
    houl = houl+readouts[i];
   }
   //打印该字符串
   houl = houl+'/n';
   System.out.println(houl);
   System.out.println("begin store these data...");
   //将此字符串的内容写入输出流所代表的文件
   for (int i = 0 ; i < inread ; i++)
   {
    outStream.write(houl.charAt(i));
   }
   //关闭输出流
   outStream.close();
   //创建一新的输入流，并在屏幕显示输入的内容。
   System.out.println("This documents stored ok..!~~");
   System.out.println("Program Beginning ... ...");
   FileInputStream inStreamnew = new FileInputStream("E://d.txt");
   int inreadnew = inStreamnew.available();
   byte inwordnew[] = new byte[inreadnew];
   int bytesReadnew = inStreamnew.read(inwordnew,0,inreadnew);
   System.out.println("This is a test for this program...");
   System.out.println(new String(inwordnew,0));
   //关闭输入流
   inStreamnew.close();
}
}