Java

/*** Merge two ordered tables* @param array* @param start position* @param mid first series end position* @param end position of the second sequence* @return*/public static void Merge (int[] array,int start,int mid,int end){Int[] result = new

1. Jquery + Spring MVC + spring + mybatis + SQL + mysql/oracle + logs2. Big Data: Nginx3. Performance analysis: Jvisualvm.exe, Nmon, VNC4. Intermediate transitions: ActiveMQ, H2, Hazelcast, MongoDB5. Linux Server Basic Operations Command, analysis6.

It is recommended to use the second method, the fastest one.Method One: Use Java's own functionJava code Public Static boolean isnumeric (String str) { For (int i = Str.length ();--i>=0;) { if (! Character.isdigit (Str.charat (i))

Package Cn.baokx.test;import Java.text.parseexception;import Java.text.simpledateformat;import Java.util.Calendar; Import Java.util.date;import Java.util.gregoriancalendar;public class Test {public static void main (String ... args) {Str ing

Java_Thread producer and consumer Demo, java_threaddemo 1 package com. bjsxt. thread. demo; 2 public class ProducerConsumer {3/** 4 * producer and consumer 5 * @ param args 6 */7 public static void main (String [] args) {// simulate thread 8

Mockito Hello World, mockitohelloworldMockito Hello WorldProject ConfigurationIDE is Intellij IDEA. Use gradle to configure the project. Create a Java project, which must be included in gradle: repositories { jcenter() }dependencies { testCompile

Error: The org. springframework. web. context. ContextLoaderListener class cannot be found,   Severe: Error Handling ing application listener of class org. springframework. web. context. ContextLoaderListenerJava. lang. ClassNotFoundException: org.

Class, object and package, class, Object 1) Object Oriented Programming (OOP): it became popular after 1970s. 2) differences between Structured Programming and object-oriented programming: A. in structured programming, the program is mainly designed

Java framework --- getting started with hibernate, java --- hibernate Hibernate is an open-source object relationship ing framework that encapsulates JDBC objects in a lightweight manner, so that Java programmers can use the object programming

Java learning notes --- inheritance and super usage, learning notes super   Since I changed a video tutorial, I feel much better than the original one, that is, the school's network speed is too bad. Many videos will be stuck for a long time, so I

Thoughts on improving Spring JDBC RowMapper [Note] we usually use RowMapper (such as ParameterizedRowMapper), and we need to define the query field. If we use an alias, we cannot. For example, join group or join query cannot be used. Unless you do

Design Pattern Note Factory method Factory Methon     // Factory method ------- object Creation Mode   /* 1: Intention: Defines an interface used to create objects, so that the subclass determines which class to instantiate. Factory Method delays

Spring container startupSpring container startup.I also read the source code by myself, so that I can easily remember and understand it later. Therefore, I am writing this article. If there is anything wrong, please submit it.For tomcat-based server

Struts2 Interceptor-user session judgment Almost every J2EE project involves a user module. As long as it involves some management and judgment of user login and logout and its session, I have written a lot of code about this, I just wrote but did

Construction mode of Design ModeThe building mode is the object creation mode. The building mode can separate the internal appearance of a product from the production process of the product. Instead, a building process generates a product with a

Java multi-thread security Package SwingExample; public class MultiThreadSafe implements Runnable {private int nTicketCount = 10; // number of remaining train tickets private String strPurchaserName; // name of the purchaser public static void main (

Spring. Net + WCF for distributed transactions Project Background: ITOO. Teacher. Service provides a set of WCF services for accessing the instructor database. ITOO. Student. Service provides a set of WCF services for accessing the Student database.

Java multi-thread synchronization mechanism Java's multi-thread synchronization mechanism is the same as that developed in other languages. In the current thread, when an event occurs, it waits for another thread to finish running or another thread,

Java multithreading and concurrent applications-(2)-thread mutex-synchronized First, see the following example:   Package com. lipeng; public class SynchronizedDemo {public static void main (String [] args) {final Print print = new Print (); for

Java-based BigInteger and BigDecimal The two classes of JAVA, BigInteger and BigDecimal, represent the big integer class and the big floating point class respectively. Theoretically, they can represent an infinite number. 1: Big INTEGER: BigInteger