Spring timed Task execution: annotation method

Note: This is based on the setting up of spring1. Timed Task classPackage com.qunar.ittsb2b.aftersales.utils;Import Java.util.Date;Import org.springframework.scheduling.annotation.Scheduled;Import org.springframework.stereotype.Component;@Component (

Maximum number of one-dimensional array overflow

First, title and requirements:Title: Returns the and of the largest sub-array in an integer array.Requirements (new addition): ① requires that the program must be able to handle 1000 elements; ② each element is of type Int32.Member: Shi Li HaisuTwo

Pair programming the sum of the largest sub-arrays in the concatenated array

1. Title:Returns the and of the largest sub-array in an integer array.2. Requirements:Enter an array of shapes with positive and negative numbers in the array.One or more consecutive integers in an array make up a sub-array, each of which has a

One-dimensional ring array

A topic and requirements:Title: Returns the maximum number of sub-arrays in an integer array andRequirement (new addition): ① if array a[0] ... A[j-1] Next to the end, allow A[i-1] ... A[n-1],a[0] ... A[J-1] The sum of the largest; ② returns the

Without subtraction to do addition 47

The first two-digit binary rule does not consider rounding, which is added directly, equivalent to bitwise XOR or??The rounding is then calculated as the bitwise AND??Then the calculation is done when no carry is present.??If there is a carry then

USB Development Notes

The USB stick should belong to the mass storage class. USB mass storage devices, including Universal mass Storage sub-class, Cdrom,tape and so on, the U disk is actually a mass storage class in the general mass storage subclass . Universal mass

The difference between OC __weak and __strong

1. First on the codeID __weak obj=[[nsobject Alloc]init]; NSLog (@ "Weak reference self Address:%p", &obj); NSLog (@ "Weak reference points to address:%p", obj); ID __strong obj0=[[nsobject Alloc]init]; ID __weak obj1=obj0; NSLog (@

Some tips that are common

Today is the most abbreviated feature matrix extraction. In fact, it is a mathematical-related problem, C # has not been used to a very deep point.1 console.write ( string formatting of "{0:f2}"// output streamBut I found something quite useful for

9. Delegates, events, LAMBDA

there must be a problem with the delegation. First question, what is the delegate used for? Look at the expression in. NET: Under the. NET platform, the delegate type is used to define and callback in the corresponding application. Callback A

"Original" KAKFA Utils source Code Analysis (i)

Kafka.utils, as the name implies, is a toolkit package, inside the class encapsulates a lot of common function implementation--here, I have a feeling: Originally to read Kafka source code and learn the Scala language, this thought Kafka

Two-way smoke debugging--programming debugging kick

Someone said that the procedure is to be transferred out, and do not say whether this sentence is one-sided, it is undeniable that debugging is very important.The purpose of debugging is to find out the problem, the dichotomy of smoke debugging is

Libvirt Network Filtering rules: Prohibit client (bridge mode) connection to Extranet

The first is the libvirt that defines the network filtering rules:Virsh Nwfilter-defineAdd an XML file followed by defining or updating a network filtering rule from an XML file.Virsh Nwfilter-dumpxmlFollow the name of a network filter rule to view

Nginx Configuration Instructions

In this record the Nginx server nginx.conf configuration file description, some comments collected with the network.#运行用户User Www-data;#启动进程, usually set to equal to the number of CPUsWorker_processes 1;#全局错误日志及PID文件Error_log/var/log/nginx/error.log;

POJ3061---subsequence (ruler)

DescriptionA sequence of n positive integers (InputThe first line is the number of test cases. The program have to read the numbers N and S, separated by a interval, from the first line. The numbers of the sequence is given in the second line of the

VS2008 Simplified Chinese version serial number

VS2008 Simplified Chinese version serial number1.Visual Studio Professional Edition:Xmq2y-4t3v6-xj48y-d3k2v-6c4wt2.Visual Studio Team Test Load Agent:wpx3j-bxc3w-bpywp-pj8cm-f7m8t3.Visual Studio Team System:pyhyp-wxb3b-b2ccm-v9dx9-vdy8t4.Visual

Large data processing Method Bloom filter

Bushi filter is a kind of random data structure with high space efficiency, its implementation method mainly includes a bit array, which can be implemented by Bitset in C + + and K hash function. The algorithm is based on the principle that when an

What is the entity Framework (ORM)

The master skimmed over, only to check the leakage of the vacancyWhat is the Entity framework:The 1,ado.net Entity Framework is an object relationship correspondence (O/R Mapping) solution developed by Microsoft on the basis of ADO.2, the Entity

@selector Explanation (understanding)

What is @selector?11 Types of SEL2 represents the message (method) you want to send, it's a bit like a string, or you can turn it around.: Nsselectorfromstring ()/nsselectorfromstring ()3 something that can be understood as a function pointer--a

Hadoop Technology Insider (YARN) Part 4th question Answer

Issue 1: Rewrite the Distributedshell program so that each container runs on a different node (currently random and may run on any node).Issue 2: Overwrite the Distributedshell program so that a user-specified command can be executed only once on

Looking for "Inverse Day" constants

Colleagues in the study of LZ4 compression algorithm when I sent a piece of code, read the immediately expressed very shocked:Static Const int[] Multiplydebruijnbitposition =New int[ +]{ 0,1, -,2, in, -, -,3, -, A, -, the, -, -,4,8, to, -, -,

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