Java

Directly on the code:String reg = "\\d+ (\\d+) $"; // extract the number at the end of the string: Seal the Tower guard . = = >> String s = monster.getmonstername (); = Pattern.compile (reg); = P2.matcher (s); int historyhighestlevel = 1;

Assume there is no intermediate agent layer:Interface/** * * */package com.tree.demo.proxy; /** * classname:italkinterface * Function:todo ADD Function. * Reason: TODO ADD REASON. * Date: December 25, 2014 PM 3:41:56 * @author

Not much to say, see two questions. In the first question, the following code executes the result: Package com.zhyea.test; Public class Test { publicstaticvoid main (string[] args) { = "123"; Changestring (str); System.out.

Introduction to the first chapter object1.1 Abstract ProcessEstablishes the association before the machine model (the solution space) and the actual problem model (problem space). Object-oriented objects represent the elements of the problem space

Finalizers is unpredictable, often dangerous, and generally unnecessary. In Java, the GC automatically reclaims the space associated with an unreachable object without requiring the programmer to do the work.For non-memory resources, we

private static byte hexvalueof (String hex) {byte result = 0;if (Hex.charat (0) = = ' 0 ' && (hex.charat (1) = = ' X ' | | | he X.charat (1) = = ' X ') {for (int i = 2; I System.out.println ("Java String Type 16 binary literals converted to literal

I. OverviewCapture the internal state of an object without destroying it, and save the state outside the object so that it can be restored to its previously saved state. It is an object-behavioral pattern .Second, the application scenario1, similar

A pojo exampleClass User {String name;String age;Public User (String name,string age) {This.name=name;This.age=age;}Public String Getage () {return age;}public void Setage (String age) {This.age = age;}Public String GetName () {return name;}public

Use Java.security to encrypt strings MD5:1 Importjava.security.MessageDigest;2 Importjava.security.NoSuchAlgorithmException;3 4 Public classMD5 {5 Public Static FinalString Md5code = "";6 7 Private StaticMessageDigest messagedigest =NULL;8

Look at Craig, Landin, and Hagersten invented the CLH lock how to optimize the cost of synchronization, the core idea is: through a certain means of all threads to a shared variable polling competition into a thread queue and threads in the queue

In order to prepare for debugging, you need to set a breakpoint in the code first so that the debugger pauses execution allowing you to debug, otherwise the program will execute from the beginning to the end, and you will not have the opportunity to

This two-day look at Zhou Zhiming's "in-depth understanding of Java Virtual Machine" benefited a lot, according to the book's revelation, the java "= =" and the "Equals ()" Method of the difference did some exploration.First of all, in order to get

Packagecom.qq.utils;ImportJava.io.File;ImportOrg.apache.commons.httpclient.DefaultHttpMethodRetryHandler;Importorg.apache.commons.httpclient.HttpClient;ImportOrg.apache.commons.httpclient.methods.GetMethod;ImportOrg.apache.commons.httpclient.params.H

To recap, in the Lotus Notes Talk column, I wrote a succession of articles about Java programming in notes: 6. The development language in Lotus Notes, 8. From LotusScript to Java, 22. Why write Java in xpages? , 31. How to write Java, 42 in the

Web. XML Configuration Mapping page direct configuration path can be

/*** Multithreading shared data * thread synchronization: Multiple threads can have only one thread executing their specified code at the same time period, and other threads will wait until the thread finishes before continuing. * Multi-threaded

Java enum Enumeration Java is not enumerated before. To use a feature similar to enumeration, that is, to use constants, you can use the following code: Definition of constants in Java: PublicclassSex2 { PublicstaticfinalintGIRL=

Crazy Java algorithms-insert sorting, Merge Sorting, and Parallel Merge SortingSince ancient times, there has been a difficult question in the IT session, commonly known as sorting. Whether you take a high-end test such as BAT or a grassroots test

Interesting exploration of the '=' and 'equals () 'methods in java In the past two days, I have benefited a lot from Zhou Zhiming's "deep understanding of java Virtual Machine". Based on the inspiration in the book, '=' and 'equals () 'The

Create map struct sort + cmp by yourself # Include # Include # Include using namespace std; struct Point {int x, y ;}; struct Map {Point p; float f ;}; bool cmp (Map x, Map y) {return x. f Vec; for (int I = 0; I