java qr code reader

;Import java.net.HttpURLConnection;Import Java.net.URL;public class Webpagesource {public static void Main (String args[]) {URL url;int responsecode;HttpURLConnection URLConnection;BufferedReader reader;String Line;try{generate a URL object, to get the source code of the Web page address is:http://www.sina.com.cnUrl=new URL ("http://www.sina.com.cn");Open URLURLConnection = (httpurlconnection) url.openconne

fruit.properties resource file, Content is: Apple=reflect.appleOrange=reflect.orange Then write the main class code: package reflect; Import java.io.*; Import java.util.*; Interface fruit{public abstract void Eat ();} Class Apple implements fruit{public void Eat () {System.out.println ("Apple"); Class Orange implements fruit{public void Eat () {System.out.println ("Orange"); }//Operations Properties File class class init{public static

Objective:KMP algorithm is a kind of string matching algorithm, which is discovered by Knuth,morris and Pratt simultaneously (called KMP algorithm). The key of KMP algorithm is to reduce the number of matches between the pattern string and the main string so as to achieve fast matching by using the information after the match failure. The popular practice is to implement a next () function, which itself contains local matching information for the pattern string. Because the next function is not

Java-1.4 code reuse In this section, we will discuss how to reuse code. 1. Why? I am not going to elaborate on this. I can give you a few reasons for this. I have summarized the following: For the boss: reduce costs, shorten development time, and maximize profits For teamleader: accelerate the progress, compress the construction period, and deliver the most proje

What locks are in Java This problem after I read There are two main types of locks in Java: Internal lock synchronized and display lock Java.util.concurrent.locks.Lock. But the thought of this seemingly summed up is not quite right. Should be a series of locks implemented by the Java built-in lock and concurrent. Why this says, because everything in

Recently, I recalled some of the little exercises that I have practiced in Java. Feeling is quite interesting, in retrospect, think of a lot of learning experience and bumpy, a small exercise to study half a day, treasure the past, face the future. The following contribution code, Java console input digital output multiplication table (

Java generated two-dimensional code Related to some of the main class library, convenient for everyone to download: Code Lib:Qrcode_swetake.jar (Website introduction--http://www.swetake.com/qr/index-e.html) Decoding Lib:qrcode.jar (Website introduction--http://sourceforge.jp/projects/qrcode/) "One",

The code is as followsImport Java.io.bufferedreader;import Java.io.inputstreamreader;import Java.net.httpurlconnection;import Java.net.url;public class Main {private String u; Private String encoding; public static void Main (string[] args) throws Exception {main client = new Main ("http://www.baidu.com/", "UTF-8"); Client.run (); } public Main (String u, string encoding) {this.u = u; this.encoding = encoding; } public void

bin = new Filebody (file);Stringbody encapsulates a parameter of type stringStringbody keybody = new Stringbody (key, Contenttype.text_plain);Stringbody typebody = new Stringbody (type, contenttype.text_plain);Addpart Pass the argument and specify the parameter nameHttpentity reqentity = Multipartentitybuilder.create (). Addpart ("Pic", bin). Addpart ("key", Keybody). Addpart ("Cardtype", Typebody). Build ();Httppost.setentity (reqentity);Httppost.setconfig (config);Perform network requests and

transformation of the gray scale distribution 1 to the right (that is, The probability of each grayscale value appearing is to be the same, so that you can find some details that are hard to see with the naked eye, 2 (as the reader sees it). When it comes to this, it's usually over, but do we really understand? How to better understand it?The following is a brief introduction of how I understand. Http://www.cnblogs.com/mewrhje/originally did not want

let's look at how to implement the AOP feature that prints the current time before and when the method is called. Change the transform method of transformer first Public byte[] Transform (ClassLoader loader, String className, ClassByte[] classfilebuffer) throws Illegalclassformatexception { Byte[] result = Classfilebuffer; Defining a new byte-code storage variable This changes the class by modifying the byte code