java debugger tool

Original article: Http://www.infoq.com/cn/news/2011/08/jprofiler7 J-Technologies Co., Ltd. released jprofiler 7.0 some time ago. Jprofiler is a Java SE/EE profiling tool that features CPU analysis, memory analysis, thread analysis, and Vm telemetry. New Features of version 7.0 include: Analyze the built-in probes for JDBC, JMS, JNDI, Servlet, files, sockets, and processes. You can use the API to customi

public static 8. Unmodifiable SeriesEnsure that the encapsulated collection cannot be changed. public static public static public static public static public static public static Extends v> m) 9. OtherThe Collections tool class features more than these, as well as methods such as fill (), rotate (), Max (), Min (), and so on. It is not possible to remember all of a sudden, use the time to check the AP

protects the key with a password. Another tool, Jarsigner, produces or verifies the digital signature in a Java aRchive (JAR file) using the information in KeyStore. The KeyStore has two different entrances: 1. Key entry: Stores very sensitive encrypted key information and is stored in a protected format to prevent unauthorized access. The key stored in this form is the secret key, or a private key to t

Original: Java object any deep clone clone tool class shareSource code: Http://www.zuidaima.com/share/1550463408114688.htmJava object any deep clone clone tool class sharePackage com.zuidaima.n_app.util; Import Java.lang.reflect.Constructor; Import Java.lang.reflect.Field; Import java.lang.reflect.InvocationTargetException; Import Java.lang.reflect.Modifier;

; version>${project-javasimonversion}version> Dependency> dependency> groupId>org.javasimongroupId> artifactid>javasimon-console-embedartifactid> version>${project-javasimonversion}version> Dependency> dependency> groupId>org.javasimongroupId> artifactid>javasimon-jdbc4artifactid> version>${project-javasimonversion}version> Dependency> dependency> groupId>org.javasimongroupId> artifactid>javasimon-javaeeartifactid>

=NewFileInputStream (NewFile (Imgpath + file.separator + "News.xls")); OS=Res.getoutputstream (); byte[] B =New byte[4096]; intlength; while(length = Inputstream.read (b)) > 0) {Os.write (b,0, length); } } Catch(Exception e) {e.printstacktrace (); return"False"; } finally { Try{Os.flush (); Os.close (); Inputstream.close (); if(NewFile (Imgpath + file.separator + "News.xls"). Exists ()) {NewFile (Imgpath + file.separator + "News.xls"). Delete ();

Configuring Environment variablesHttp://jingyan.baidu.com/article/cb5d61050b8ee7005d2fe04e.html Configure MAVEN to IntelliJ1. Open Intellij, click the menu bar Run--editconfiguration pop-up run/debug configurations, Click on the left column + sign button and choose Add Maven, specifically2. After adding, check the right General's Maven home diretory,User setting file,Local repository whether the maven directory you specified is the configured MAVEN environment variable location,

= 1.62calls/s 15-minute rate = 1.61calls/s min = 35.47ms max = 878.76ms mean = 462.50ms StdDev = 284.91ms median = 419.90ms 75% Health ChecksA health check, such as a heartbeat:Package com.alibaba.cxf.test.metric; Import Java.util.map;import java.util.map.entry;import java.util.random;import java.util.concurrent.TimeUnit; Import Com.yammer.metrics.healthchecks;import Com.yammer.metrics.core.healthcheck;import Com.yam

First, what is scheduled task schedulingA task that is automatically performed based on a given point in time, a given time interval, or a given number of times.Second, the common use of Java Timer Task scheduling tool: Timer Quartz 2.1 Differences between the two: The timer originates from Jdk,quartz and requires additional jar packages. Timer function is few, easy to use, ca

Original: Java common regular Expression validation tool class Regexutils.javaSource code: Http://www.zuidaima.com/share/1550463379442688.htmJava Forms register a common regular expression validation tool class, a large collection of commonly used regular expressions.1. Phone number2. Postal code3. QQ4. E-Mail5. Mobile phone number6. URL7. Is the number8. Whether

Original: Java Common Stream Processing tool streamtool Common InputStream flow string, byte array, etc.Source code Download: http://www.zuidaima.com/share/1550463397366784.htmAva Common Stream Processing tool streamtool, common InputStream flow string, byte array, etc.* * Application Scenario:* * 1. File Upload2. Js/css/img and other files read output. Turn stri

function in the Keyextractor.java file. The first parameter of Keyextract_getkeywords is the text that needs to be extracted from the keyword, and the second argument is the number of keywords.public static void Main (string[] args) {String keywordsstr = CLibraryKeyExtractor.instance.KeyExtract_GetKeyWords (args [0], ten, true); System.out.println (KEYWORDSSTR); CLibraryKeyExtractor.instance.KeyExtract_Exit ();}In the current folder of the project, there is a data directory, is the word segment

). By default, automatically determines the best strategy-so you don't have to.Objenesis objenesis = new OBJENESISSTD (); or ObjenesisserializerOnce you has the objenesis implementation, you can then create an ObjectInstantiator , for a specific type.Objectinstantiator thingyinstantiator = objenesis.getinstantiatorof (Mythingy.class);Finally, you can use the instantiate new instances of this type.Mythingy thingy1 = (mythingy) thingyinstantiator.newinstance (); Mythingy thingy2 = (mythingy) thing

With AOP and Java instrument, Java has a lot of good performance monitoring tools that can help us analyze system bottlenecks effectively. For example, using JVISUALVM GUI to connect the JVM application can monitor the various states of the application, you can see the execution time of each function, but many times we do not have JVISUALVM GUI to help debug, this time I prefer to use Javasimon, The service

Java is cross-platform, Jd-gui provides support for multiple systems, but it is not recommended to install directly, the fastest way to directly download the jar package, and then run with Java-jar.The current version is 1.4.0, which stays in 2015 and is expected to be updated recently because Java 9 is out and the corresponding syntax sugar estimate may be modif

Reference: http://blog.csdn.net/u014472711/article/details/53713269http://lijingshou.iteye.com/blog/2005717OrJad-o-r-s java-d src classes/**/*.classsrc folders, which are all anti-compiled Java source files.The parameters of the Jad command have the following meanings:-O: Overwrite old files without prompting for confirmation.-R: Reloads the build package structure.-S (