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˵Ã÷£ºÎÄÕÂÄÚÈݽö¹©Ô¤ÀÀ£¬²¿·ÖÄÚÈÝ¿ÉÄܲ»È«£¬ÐèÒªÍêÕûÎĵµ»òÕßÐèÒª¸´ÖÆÄÚÈÝ£¬ÇëÏÂÔØwordºóʹÓá£ÏÂÔØwordÓÐÎÊÌâÇëÌí¼Ó΢ÐźÅ:xxxxxxx»òQQ£ºxxxxxx ´¦Àí£¨¾¡¿ÉÄܸøÄúÌṩÍêÕûÎĵµ£©£¬¸ÐлÄúµÄÖ§³ÖÓëÁ½⡣

import java.io.*; public class Sort{

public static void main(String args[]) {

int a[]=new int[10]; byte b[]=new byte[10]; int t;

String str;

System.out.println(\ÇëÊäÈë10¸öÕûÊý£º\try{

for(int i=0;i<10;i++)

{System.out.print(\System.in.read(b); str=new String(b); str=str.trim();

a[i]=Integer.parseInt(str); }

}catch(IOException e){

System.out.println(e.toString()); }

catch(NumberFormatException e){ System.out.println(e.toString()); }

for(int i=0;i<9;i++) for(int j=i+1;j<10;j++) {

if(a[i]>a[j]){ t=a[i]; a[i]=a[j]; a[j]=t; } }

for(int i=0;i<10;i++)

System.out.println(a[i]+\} }

7¡¢ÏÂÁгÌÐòÓÃÓÚÏÔʾָ¶¨Ä¿Â¼ÏµÄ×ÓĿ¼¼°ÎļþÃû£¬ÇëÌîдËùȱÉٵĴúÂ룻 import java.io.*; public class sy2_1{

public static void main(String args[ ]){ String s1,s2[ ]; try

{InputStreamReader iin=new InputStreamReader(System.in);

BufferedReader bin=new BufferedReader(iin); System.out.println(\ÇëÊäÈëÒ»¸öÎļþÃû£º\ s1=bin.readLine(); //¶ÁÈëÎļþÃû File f=new File(s1);

System.out.println(f.isDirectory());

if (f.isDirectory()) // ÅжÏÊÇ·ñΪĿ¼£» { int n=(f.list()).length; s2=new String[n]; s2=f.list(); //»ñÈ¡×ÓĿ¼¼°ÎļþÃû£» for(int i=0;i

catch(IOException e){ } } }

8¡¢ÏÂÁгÌÐòÏòÆÁÄ»Êä³öÎı¾ÎļþÄÚÈÝ£ºÇëÍê³ÉËùȱÉٵĴúÂë import java.io.*; class readtxt {

public static void main(String[] args) {

try{

FileReader f1 = new FileReader(\

BufferedReader bf1 =new BufferedReader(f1);

String line;

line = bf1.readLine();

while(line!=null) //ÅжÏËù¶ÁµÄÒ»ÐÐÄÚÈÝÊÇ·ñΪ¿Õ£» {

System.out.println(line);

line = bf1.readLine(); //¼ÌÐø¶ÁÈëÏÂÒ»ÐÐ }

bf1.close(); //¹Ø±ÕÎļþµÄÊäÈëÁ÷£» }catch(IOException e) {e.printStackTrace(); } }}

9¡¢ ±àд³ÌÐòʵÏÖ£º³ÌÐòÔËÐкó¹²ÓÐ3¸öỊ̈߳¬·Ö±ðÊä³ö10´ÎÏ̵߳ÄÃû³Æ£ºmain, thread-0,thread-1.

´ð£ºÂÔ

10¡¢Çë±àдjava³ÌÐò£¬·ÃÎÊhttp://www.tirc1.cs.tsinghua.edu.cnËùÔÚµÄÖ÷Ò³Îļþ ´ð£º public class URLReader {

public static void main(String[] args) throws Exception { /ÉùÃ÷Å׳öËùÓÐÀýÍâ URL tirc = new URL(\¹¹½¨Ò»URL¶ÔÏó

BufferedReader in = new BufferedReader(new InputStreamReader(tirc.openStream())); //ʹÓÃopenStreamµÃµ½Ò»ÊäÈëÁ÷²¢Óɴ˹¹ÔìÒ»¸öBufferedReader¶ÔÏó String inputLine;

while ((inputLine = in.readLine()) != null) //´ÓÊäÈëÁ÷²»¶ÏµÄ¶ÁÊý¾Ý£¬Ö±µ½¶ÁÍêΪֹ System.out.println(inputLine); //°Ñ¶ÁÈëµÄÊý¾Ý´òÓ¡µ½ÆÁÄ»ÉÏ in.close(); //¹Ø±ÕÊäÈëÁ÷ } }

11¡¢´Ó¼üÅÌÉÏÊäÈëÖ÷»úÃû³Æ£¬±àдÀàËÆpingµÄ³ÌÐò£¬²âÊÔÁ¬½ÓЧ¹û¡£

import java.net.*; import java.io.*;

class Ping {

public static void main(String[] args)

{ System.out.println(\ÇëÊäÈëpingÖ÷»úÃû³Æ»òµØÖ·£º\\n\

try {

String host = keyreadline();

InetAddress ip = InetAddress.getByName(host); long t1 = System.currentTimeMillis(); if(ip.isReachable(5000)) { long t2 = System.currentTimeMillis(); System.out.println(\ + ip.getHostAddress() + \ time<=\System.out.println(); }

else { System.out.println(\ } }

catch (IOException e)

{ System.out.println(\ }

private static String keyreadline( ) {

BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String str = null; try {

str = br.readLine(); } catch (IOException e) {

e.printStackTrace(); } return str; } }

12¡¢Éè·þÎñÆ÷¶Ë³ÌÐò¼àÌý¶Ë¿ÚΪ8629, µ±ÊÕµ½¿Í»§¶ËÐÅÏ¢ºó£¬Ê×ÏÈÅжÏÊÇ·ñÊÇ¡°BYE¡±£¬ÈôÊÇ£¬ÔòÁ¢¼´Ïò¶Ô·½·¢ËÍ¡°BYE¡±£¬È»ºó¹Ø±Õ¼àÌý£¬½áÊø³ÌÐò¡£Èô²»ÊÇ£¬ÔòÔÚÆÁÄ»ÉÏÊä³öÊÕµ½µÄÐÅÏ¢£¬²¢ÓɼüÅÌÉÏÊäÈë·¢Ë͵½¶Ô·½µÄÓ¦´ðÐÅÏ¢¡£Çë±àд³ÌÐòÍê³É´Ë¹¦ÄÜ¡£

mport java.net.*; import java.io.*; class Server{ public Server() { try {

ServerSocket ss = new ServerSocket(8629);

System.out.println(\·þÎñÆ÷¶ËÒÑÔËÐУ¬µÈ´ý¿Í»§¶ËÁ¬½Ó£º\ Socket socket = ss.accept(); //½ÓÊÕ¿Í»§¶ËµÄÁ¬½ÓÇëÇó£»

BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream())); PrintWriter out = new PrintWriter(socket.getOutputStream(),true);

BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String line; while(true)

{line = (in.readLine().trim()); if(line.equals(\)

{ out.println(\ out.close(); in.close();

socket.close(); br.close(); ss.close();

break;}

System.out.println(\¿Í»§ÊäÈëΪ :\ System.out.println(\ÇëÊäÈë»Ø´ð:\

line=br.readLine(); //´Ó¼üÅÌÉÏÊäÈëÐÅÏ¢£» out.println(line); //Ïò¶Ô·½·¢ËÍÐÅÏ¢ } }

catch (IOException e){} }

public static void main(String[] args) throws Exception{ new Server(); } }

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