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import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.RandomAccessFile;
import java.io.Reader;
public class ReadfromFile {
/**
   * ÒÔ×Ö½ÚΪµ¥Î»¶ÁÈ¡Îļþ£¬³£ÓÃÓÚ¶Á¶þ½øÖÆÎļþ£¬ÈçͼƬ¡¢ÉùÒô¡¢Ó°ÏñµÈÎļþ¡£
   * @param fileName ÎļþµÄÃû
   */
public static void readFileByBytes(String fileName){
   File file = new File(fileName);
   InputStream in = null;
   try {
    System.out.println("ÒÔ×Ö½ÚΪµ¥Î»¶ÁÈ¡ÎļþÄÚÈÝ£¬Ò»´Î¶ÁÒ»¸ö×Ö½Ú£º");
    // Ò»´Î¶ÁÒ»¸ö×Ö½Ú
    in = new FileInputStream(file);
    int tempbyte;
    while((tempbyte=in.read()) != -1){
     System.out.write(tempbyte);
    }
    in.close();
   } catch (IOException e) {
    e.printStackTrace();
    return;
   }
   try {
    System.out.println("ÒÔ×Ö½ÚΪµ¥Î»¶ÁÈ¡ÎļþÄÚÈÝ£¬Ò»´Î¶Á¶à¸ö×Ö½Ú£º");
    //Ò»´Î¶Á¶à¸ö×Ö½Ú
    byte[] tempbytes = new byte[100];
    int byteread = 0;
    in = new FileInputStream(fileName);
    ReadfromFile.showAvailableBytes(in);
    //¶ÁÈë¶à¸ö×Ö½Úµ½×Ö½ÚÊý×éÖУ¬bytereadΪһ´Î¶ÁÈëµÄ×Ö½ÚÊý
    while ((byteread = in.read(tempbytes)) != -1){
     System.out.write(tempbytes, 0, byteread);
    }
   } catch (Exception e1) {
    e1.printStackTrace();
   } finally {
    if (in != nul


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package com.softeem.jbs.lesson4;
 
import java.util.Random;
 
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import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputS ......
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