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12 methods for linux shell to process text line by line 1. cat $ filename | while read line example: function while_read_line {cat $ filename | while read line do www.2cto.com echo "$ line ": # This line does not do anything. The return value is 0

Network programmingNetwork model: OSI Reference Model, TCP/IP Reference ModelNetwork communication elements: IP address, port number, transfer ProtocolIP address (corresponding object inetaddress)Identification of devices in the networkHard to

I. OverviewThe socket class is the underlying class in which Java performs client-side TCP operations, and the class itself uses code to communicate through the local TCP stack of the host operating system. The socket class method establishes and

Dark Horse programmer-java basic IO stream-bytes stream buffer and word throttling, javaio Shard Stream Buffer L the emergence of a buffer increases the efficiency of reading and writing data. L corresponding class • BufferedWriter • BufferedReader

I haven't studied encrypted websites yet. I don't know if I can capture them. Now I only want to capture webpage data for some unencrypted websites. At the beginning, I thought many websites could be crawled, but I found that many of them were

Today using NIO to write a similar SSH network client, in the execution of the process, there is a very annoying bug, nonsense, the code: Public Static voidMain (string[] args)throwsException {Process process=runtime.getruntime (). EXEC ("cmd/c tree"

If you find that you have a lot of duplicated code, you might consider using a template method to eliminate error-prone duplicate code. Here's an example: The following two classes complete almost the same functionality: Instantiate and

I. OverviewThe socket class is the underlying class in which Java performs client-side TCP operations, and the class itself uses code to communicate through the local TCP stack of the host operating system. The socket class method establishes and

IO stream 03 -- video Study Notes for bixiangdong JAVA basic tutorial, 03 -- bixiangdong Abstract 16 read the conversion stream17 write a conversion stream18 stream operation rules-119 stream operation rules-220. Change the standard input/output

I. OverviewThe socket class is the underlying class in which Java runs the clienttcp operation, which itself uses code to communicate through the local TCP stack of the host operating system.The socket class method establishes and destroys the

1.UDP No connection Chat/* Write a chat program. There is part of the data collected, and the part that sends the data. These two parts need to be executed at the same time. Then you need to use multithreaded technology. A thread control to receive,

Upload and download Java files File Upload is very common in Web applications. It is very easy to implement the file upload function in the JSP environment, because there are many File Upload components developed using Java on the Internet, this

I/O flow Grouped by data into byte stream and character streams (coded table, Western ASCII, China gb2312 expansion for gbk--> Unified for Unicode--> optimization utf-8)Character streams are based on the byte stream, specifying what table to look

Original from: http://blog.csdn.net/ben1247/article/details/6552146 File upload in the Web application is very common, in the JSP environment to achieve file upload function is very easy, because there are many Java development of the file upload

All files in the assets folder are in the original file format. You need to use AssetManager to read files in the form of byte streams. 1. Call getAssets () in the Activity to obtain the AssetManager reference.2. Use AssetManager's open (String

Example of an uppercase server:Package Com.core.net;import Java.io.bufferedreader;import Java.io.bufferedwriter;import java.io.InputStreamReader; Import Java.io.outputstreamwriter;import java.io.printwriter;import java.net.serversocket;import

Recently compared the JDK used in Android HttpURLConnection and Apache Httpclien access network resources, summed up the HTTP protocol information. As follows:JDK's httpurlconnection:(1) Get requestPublic String Executehttpget () {String result =

JAVA 62nd-TCP protocol exercises Understanding TCP transmission problems through practice Exercise 1:Create an English capital conversion Server The client enters a Letter of data and sends it to the server. After receiving the data, the server

Two days ago, I logged on to a website's resource page and found that my download resources had nearly 20 pages of resources to be commented on. Each download resource comment can have a resource score, the resource comment rules of a website can be

Learn about TCP's problems during the transfer process by practicingExercise 1: Create an English capital conversion serverThe client enters the alphabetic data, sends it to the server, the server receives it and displays it to the console, and