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(1));L.add (New Integer (2));L.add (New Integer (3));L.add (New Integer (4));Iterator It=l.iterator ();Hasnext is the value of the current value. His operation is to determine if there is a value for the next if there is a continuation.while (It.hasnext ()) {Set the It.next encapsulation class, call the integer Intvalue method return value to int assigned to I;int i= ((Integer) It.next ()). Intvalue ();System.out.println ("Element in list is:" +i);}}} 　　 　　 Example 2.Import java.util.*;public

serialversionuid be displayed in a serializable class, giving it a definite value .There are two ways to explicitly define SERIALVERSIONUID:1, in some cases, you want different versions of the class to be serializable compatible, so you need to ensure that the different versions of the class have the same serialversionuid;2. In some cases, you do not want different versions of the class to be serializable compatible, so you need to ensure that different versions of the class have different seri

The elegant reddish-brown and yellow-brown color is the most commonly used in the Korean system. Color mixing process is not complicated: first, simply beautify the material, the overall tone. Then adjust the main color of the picture, mainly warm, and later to the dark and high light to increase the warm. Original Final effect 1, open the material picture, create curve adjustment layer, RGB, red, green adjustment, parameter settings such as Figure 1-3, the effect is

First of all, please understand: 1. Since it takes a certain amount of time to calculate the heat, a microblog will take about 2 hours from the issue to the list. 2. A certain micro-blog forwarding volume, the heat is not necessarily high. In the premise of not brush list, common micro-blog is not listed for the following reasons: 1. Micro-Blog release time of more than 24 hours. 2. Micro-blog is not original, there are release time earlier, the heat is higher similar content on the list.

, popularity has surpassed the business Reds Li Ka-shing thousands of points, the top Shi Jing. The chart below is the top ten figures for 31st: A big reason to pay attention to Jin is that he is the finance minister, just like all the people concerned about the drug chief Zheng. These high-level people are far away from the people, the people are naturally curious about them, their movements can arouse people's attention, coupled with a number of Hong Kong media reported that Jin was in the

The following are the 10 most popular PHP frameworks based on the MVC design pattern. 　　1. Yii Yii is a component-based, high-performance PHP framework for developing large-scale web applications. Yii is written in strict OOP and has perfect library references and comprehensive tutorials. From mvc,dao/activerecord,widgets,caching, hierarchical rbac,web services, to subjectivity, i18n, and l10n,yii provide almost everything the Web 2.0 ap

After the Windows system equipment starts, faced with such a brand-new system, how should quickly acquaint with the correct use, to the user is very important thing. You can fully experience the glamour of Windows 8 systems only after you have installed your own software. The following is to introduce 10 of foreigners eyes of the most popular Windows 8 applications. Look at the same thing you downloaded. Cut the Rope "cutting the Rope" A

Excel Six popular shortcut keys 1, ctrl+1 (number 1) Reasons to list: When editing a number format, the most common is the cell format window, press Ctrl+1-more than the right key-set cell format is much faster. 2 PgUp or PgDn. List reason: In Excel to look up and down the table, 90% students are sure to use the mouse to drag the way to see, try PgUp and PgDn key, really very convenient, if it is right and left, press ALT key, then pre

The change of color is the same as human wisdom, is infinite, each stage will have the popular color, there belong to a time of color! WEB2.0 is a concept, it preaches, locates some things, takes the user as the center, the group intelligence, the sharing and so on, and so on. In response to these demands, some top designers and developers have given and led a number of color trends. I made a partial induction and collection by feeling, and the psycho

release security patches in time to update, but also has a strong "immunity" characteristics, rarely attacked by viruses, for an open system, In the convenience of users, there is likely to be a security risk.However, the use of Linux with its own firewall (IPTABLES,FIREWALLD), intrusion detection and security certification tools, timely repair system vulnerabilities, can greatly improve the security of the Linux system, so that hackers can be inorganic, but also the security enhancement mechan

certain loss in operational efficiency. If you want to pursue operational efficiency, you have to weigh this.Third, specific to the IOC framework products (such as: Spring), the need for a lot of preparation work, more cumbersome, for some small projects, the objective may also increase some of the cost of work.Iv. the maturity of the IOC framework product itself needs to be evaluated, and if an immature IOC framework product is introduced, it will affect the entire project, so this is also an

In the example below you will find a wide variety of clips, HTML displays, login methods, vertical menus, and even the most popular themes of the moment: flat design (flattened image, flattened button shape, flattened user interface elements, etc.). Take a good look at these snippets of code, and if you incorporate them into your design, it will save you a lot of time, or you can think about learning something new from someone else and save it for a r

:4th dimension/4d, ABC, Alice, APL, Avenue, Awk, Bash, BC, Boo, Bourne shell, C shell, CFML,CG, CL (os/400), clean, Clojure, Common Lisp, Emacs Lisp, EXEC, Factor, Forth, Hack, Icon,Idl,inform, Ioke, J, Korn Shell, LabVIEW, Ladder Logic, M4, Magic, Mathematica, Moto, NATURAL,Nxt-g, OpenCL, Oz, PILOT, programming without Coding technology, Pure Data, RPG (os/400),S, Smalltalk, SPARK, Standard ML, VBScript, VHDL, X10, Z Shell2003-2013 Annual programming Language:The TIOBE Programming Community Ind

miniature Python web framework that follows WSGI. Say micro because it has only one file, and it does not depend on any third-party modules except the Python standard library.Tornado: Python Web framework for asynchronous non-blocking IOThe full name of Tornado is Torado Web server, which is known to be used as a Web server, but it is also a development framework for the Python web. Originally used on the FriendFeed company's website, Facebook acquired it and then open it up.Webpy: A lightweigh

calls the GetInput method of the Actionmapping object to get the input parameter from the action map, that is, to generate a view of the inputs, and to generate a Actionforward object with the input parameter returned. The input parameter of the JSP typically has a http:errors custom tag that reads these error messages and displays them on the page.2.1.2.2. Model-to-viewModel-to-view refers to the process by which a view loads system data into a view before it is displayed. System data is gener

TabIndex attribute.Five, the marking method in HTML51, Content type (ContentType) HTML5 file extension and content type remain the same. That is, the Extender is still ". html" or ". htm", and the content type is still "text/html".2, DOCTYPE declaration is necessary in the HTML file, it is located in the first line of the file, HTML5 DocType declaration method is not case-sensitive: 3, the specified character: in Html4 Vi. HTML5 ensure compatibility1, omit the quotation marks, when the specifie

return to the topFirst, add the following before the end of the page body tag:2. Then call the following JS script section:Backtop=function (Btnid) {Varbtn=document.getelementbyid (Btnid); vard=document.documentelement;window.onscroll= Set;btn.onclick=function () {btn.style.display= ' none '; Window.onscroll=null;this.timer=setinterval (function () { D.scrolltop-=math.ceil (d.scrolltop*0.1); if (d.scrolltop==0) clearinterval (btn.timer,window.onscroll=set);},10);}; Functionset () {btn.style.dis

Some time ago wrote a JS data validation, JS email verification, JS URL validation, JS length verification, JS digital verification, such as pop-up dialog box form but, now not very popular kind of very unfriendly way, so rewrite a, encapsulated a better, more friendly layer form Share to everyone, if you use a bug, please give me a complete message, thank you. Save As Test.js Copy Code code as follows: /** * Data validation Framework. Ad

The last written "Bootstrap" to write a mainstream browser-compatible audience giant Screen style page (click to open the link) Some of the older generation's needs may not be satisfied with this post-modern style, it doesn't matter, we can completely change the layout into a portal style, they immediately accepted: First of all, the portal layout of the probably you want to be clear, that's what's good for us. The beginning of the quick layout is a small screen, followed by a navigation bar,

The current more popular several different versions of the JVM's maximum memory: Corporate JVM version maximum memory (mega) client maximum memory (MB) serverSUN 1.5.x 1492 1520SUN 1.5.5 (Linux) 2634 2660SUN 1.4.2 1564 1564SUN 1.4.2 (Linux) 1900 1260IBM 1.4.2 (Linux) 2047 N/ABEA JRockit 1.5 (U3) 1909 1902Unless otherwise stated, the JVM version runs under the Windows operating systemAttach: How to obtain the maximum available memory of the JVMTest