head first java latest edition

Afternoon open an afternoon meeting, in fact, meeting I listen to not go in, because today demon are particularly cold, work in the company waiting for Xiaoxifu one head, then take her to eat, eat dinner back home. When she was exercising, I began to slowly organize my own little blog.--Preface　　　First of all, the purpose of writing this article is to improve the previous article everyone's question, although it is a simple function, but the last time

thought and understanding of the "best practices" recommended in the book "Effective Java".) ）In fact, so far, I will occasionally pick up the book to look, every time I read and feel the same as the last time, this may be "restudying" meaning it.New entry for the third editionAbove the ramble people can not care about, now I will introduce the third version of the new entries added.We can first look at the following picture, there is a whole concept

. * For example, a linked list has 6 nodes, starting from the beginning their values are 1,2,3,4,5,6. The bottom 3rd node of the list is a node with a value of 4 */package swordforoffer;import utils. listnode;/** * @author Jinshuangqi * * August 1, 2015 */public class E15kthnodefromend {public ListNode findkthtotail (listnode Head,int k) {if (head = = NULL | | k Test cases, functional tests (K-nodes in the

=ptr1; +Pre =ptr1; -PTR1 =Ptr1.next; the}Else{ *Pre.next =ptr2; $Pre =ptr2;Panax NotoginsengPTR2 =Ptr2.next; - } the } + while(Ptr1! =NULL){ APre.next =ptr1; thePre =ptr1; +PTR1 =Ptr1.next; - } $ $ while(PTR2! =NULL){ -Pre.next =ptr2; -Pre =ptr2; thePTR2 =Ptr2.next; - }Wuyi the - returnHeader.next; Wu -}The list implementation of bubble sortalgorithm idea: compare adjacent nodes sequentially, and e

"The first edition of Java Object-oriented programming" since its publication in 2016, thanks to readers of the Love, has been reprinted more than 20 times, become the Java field of the classic Java technology treasure. At the request of the broad masses of readers, in the past few months, the first

The use of PHP-Java-Bridge (Ping An Bank payment function Special Edition) used PHP-Java-Bridge last year when Ping An Bank was made, later I wrote a blog record some of my experiences using PHP-Java-Bridge (connection: http://my.oschina.net/kenblog/blog/316234 ). Later, many of my friends started to use PHP-

Go to the blog: http://www.cnblogs.com/puresoul/p/3483055.htmlOperation encountered error: Webdriver Unable to connect to host 127.0.0.1 on port 7055 after 45000 MS Update Selenium-java.jar package to the latest;* Development environment:1.jdk1.72.eclipse,:http://www.eclipse.org/downloads/3.selenium-java-2.44.0.jar,:http://docs.seleniumhq.org/download/Unzip the Selenium-

Sina Weibo API (Java edition)============================Modification matters:1, the interface returns the result uses the JSON object way to encapsulate2, modify the Weiboresponse Hollow string ("") call to judge the bug3. Modified the problem of returning empty object in Jsonobject4, the increase of direct file upload interface directly Common Interface Examples:(Modify the Weibo.java before use)public st

;ImportOrg.testng.annotations.BeforeMethod;Importorg.openqa.selenium.By;ImportOrg.openqa.selenium.JavascriptExecutor;ImportOrg.openqa.selenium.WebDriver;Importorg.openqa.selenium.WebElement;ImportOrg.openqa.selenium.chrome.ChromeDriver;ImportOrg.testng.annotations.AfterMethod; Public classScrollbarapi {webdriver driver; String BaseUrl; //Slide the scroll bar to the bottom of the page@Test (priority=0) Public voidf () {((javascriptexecutor) driver). Executescript ("Window.scrollto (0,documen

data;public lnode next;}Algorithm implementation:public class Linklistutli {public static void Deleterepeatvalue (Lnode L) {//If the single-linked list is empty, or if there is only a header node, or if there is only one element behind the head node. There is no possibility of duplicate values if (l==null| | l.next==null| | L.next.next==null) return; Lnode p=l;//The previous node of the current access node Lnode q=l.next;//the currently visited node

Afternoon open an afternoon meeting, in fact, meeting I listen to not go in, because today demon are particularly cold, work in the company waiting for Xiaoxifu one head, then take her to eat, eat dinner back home. When she was exercising, I began to slowly organize my own little blog.--Preface　　　First of all, the purpose of writing this article is to improve the previous article everyone's question, although it is a simple function, but the last time

sentence:sentences) {//System.out.println (segmenter.process (sentence, segmode.index). toString ());String uuid =Uuid.randomuuid (). toString (); UUID= Uuid.replace ("-", "" "); Listsegmenter.process (sentence, segmode.index); for(Segtoken segtoken:list) {String name=SegToken.word.trim (); if(Name! =NULL "". Equals (name)) {pstmt.setstring (1, Segtoken.word); Pstmt.setstring (2, UUID); Pstmt.setstring (3, sentence); Pstmt.setstring (4, "0"); Pstmt.setstring (5, Segtoken.word);

Java code to implement:/** * Enter an array of integers with positive and negative numbers in the array. One or more consecutive integers in an array make up a sub-array. * The maximum value of all sub-arrays is evaluated. Requires time complexity O (n) */package swordforoffer;/** * @author Jinshuangqi * * August 8, 2015 */public class E31greatestsumofsubarrays {Pub Lic Integer findgreatestsum (int[] arr) {if (arr.length ==0) return null; int greate

add what subagent is all custom.Poke me DownloadNote that this down is not directly used, because my ID has a daily identification limit, so you want to change the res/value/strings in the app_id to your own Iflytek Id,jar package also to be replaced by your own, detailed procedures to participate in the front from the 0 series blog.The graduation design can finally be finished.。。Give me great help. Site Address: Http://wiki.speech.cs.cmu.edu/olympus/index.php/OlympusThere are no matter what qu

This is recently because of interest to write small things, most of the Internet is easy language version, Java only version is also old, the old version of the WEBQQ protocol early failure, so now I wrote a latest version of. To achieve mass and auto-reply messages and more custom features, first of all to achieve landing QQ, here is mainly about how to analyze the QQ protocol and how to log in.I do not us

Last year, when I was doing ping an bank, I used the Php-java-bridge, and later wrote a blog record of some of the experiences of using Php-java-bridge (connection: http://my.oschina.net/kenblog/blog/316234).Then there are a lot of friends on the ground to do the safe Bank interface to use Php-java-bridge, read my blog also a bit of pain (probably at that time to

10,5,7. Next we take the node with a value of 10 from the data container. Notice that the node value of 10 is 5, 7, the node is placed in the container first, and then the two nodes are removed first, this is what we usually say first in first out, so it is not difficult to see that this container should be a queue. Because nodes with a value of 5,7,9,11 have no child nodes, they can be printed in turn.By analyzing specific examples, we can find the rules for printing binary trees from top to b

sorted.1 Public int[] Chosesort (int[] intarr) { 2 for(inti=0;i){ 3 intLowindex =i; 4 5 for(intj=i+1;j){ 6 if(intarr[j]Intarr[lowindex]) { 7Lowindex =J; 8 } 9 } Ten One //swaps the current first element with the smallest element in the sequence that follows it, that is, placing the smallest element in the front-end A inttemp =Intarr[i]; -Intarr[i] =Intarr[lowindex]; -Intarr[lowindex] =temp; the } - - ret

node in a single-linked list, then the single-linked list does not need to be reversed, and if there is only one element in the single-linked list, its position will not change after the reverse, so it can not be reversed. When there are 2 or two or more elements in a single-linked list, it is broken from the 1th element, so that its next is empty, then the 2nd element is accessed to the nth element, and when one of the elements is accessed, it is inserted into the