kinds of tools

Calculation of interest on deposits. There are 1000 yuan, 5 years, the following five kinds of options:(1) 5-year deposit, interest rate R5 = 0.0585(2) First deposit 2 years, after the expiry of the principal and interest to save 3 years, Interest Rate r2 = 0.0468 , R3 = 0.054(3) First deposit 3 years, after the expiry of the principal and interest to save 2 years(4) Deposit 1 years, after expiry the principal and interest Keep saving for 5 consecutiv

This article focuses on three kinds of proxy mode in Java code How to write, in order to ensure the relevance of the article, for the moment do not discuss the underlying implementation principle, the specific principles will be described in the next blog post.What is the proxy mode?Proxy mode is a kind of design pattern, which is simply to extend the function of the target object without changing the source code .For example, there is a singer object

Original: UWP apps get all kinds of systems, user information (2)-Store authorization information, retail demo mode information, ad ID, EAS device information, hardware identification information, mobile network informationIn application development, developers often need to obtain some system, user information for data statistics telemetry, problem feedback, user identification and other functions. This article is intended to describe ways to get som

Title demand: Chicken Weng A value of five, chicken mother a value of three, chickens three valuable one. Hundred money buys hundred chicken, asks the chicken Weng, the chicken mother, chickens each geometry?The first algorithm (also the most time-consuming, by the poor lift to find out): This method can be optimized to know the number of two chickens, the third one will knowpublic static void Hundred_money () {for (int i = 0; I for (int z = 0; z The second algorithm: (derivati

Linuxthree kinds of time in the filethree kinds of time for files :1. mtime file modification time The contents of the file change. This includes the number of empty cells in a file, the change of characters, and other actions that do not appear to affect the content of valid data. intentionally changing the timestamp. Eg: Use a command like touch–m–t 2016666666666fileName to deliberately chang

copyonwritearraylist, Copyonwritearrayset, concurrenthashmap of the implementation of the principle and application of the scene.1.2 IO(1) Mastering the succession system of InputStream, OutputStream, Reader and writer.(2) Mastering the byte stream (FileInputStream, DataInputStream, Bufferedinputstream, Fileoutputsteam, DataOutputStream, Bufferedoutputstream) and character streams (BufferedReader, InputStreamReader, FileReader, BufferedWriter, OutputStreamWriter, PrintWriter, FileWriter), and s

all the spectrum it can provide ｡ Therefore, CDMA Digital Network has the following advantages: efficient bandwidth utilization and greater network capacity ､ Simplified network planning ､ call quality high ､ confidentiality and signal coverage, not easy to drop words and so on ｡ In addition, the CDMA system uses the coding technology, its code has 440 million kinds of digital arrangement, each handset's code also changes at any time, this makes the

Android is a Linux based free and open source operating system, mainly used in mobile devices such as smartphones and tablets, led and developed by Google and the Open Cell Alliance. Next, we will introduce the 11 kinds of sensors introduced by Android operating system. In the Android2.3 gingerbread system, Google provides 11 types of sensors for use in the supply layer. #define Sensor_type_accelerometer 1//acceleration#define Sensor_type_magnetic_f

High-definition TVs are becoming more common at home, and these high-definition TVs mostly have VGA, DVI, HDMI interfaces. The laptop screen is too small, and most people in the office want an external monitor. So understand the difference between these three kinds of video signal interface, is the premise of choosing suitable display. 1, in advance, the following: Three kinds of connectors have a common n

Tags: DB2 Five kinds of administrative rightsDB2 Five kinds of administrative rightsSYSADM, Sysctrl sysmaint Dbadm and LOADThe first three permissions are Instance-level,and can is assigned to a group and is do so through the Database Manager Configuration file.The latter two permissions are database-level,are assigned to a, user or group for a particular database.DB2 get authorizationsDB2 database permissi

When we do fixed assets Afab depreciation, there are four kinds of depreciation on the screen, as follows. What is the difference between these four kinds of depreciation? 1, plan the internal accounting run 2, repeat Run 3, Depreciation restart run 4, scheduled external accounting run These four kinds of meanings are as follows: 1, the planned accounting run:

following code to stop the parser: SLC CTL Cpu-stop 1.1.61023 The following code writes the file to the hard disk: CPU profile written to ' node.1.1.61023.cpuprofile ' and load into Chrome Dev Tools Well, that's it. You can load the file into Chrome as you would in the V8 Analyzer for further analysis. Make the right decisionIn this article, the author shows three ways to capture CPU usage in a production environment in N

This topic refers to other people's ideas, 2 ways of solving problems.1.1 /**2 * Implemented in Java code: 12 tall and different people, lined up in two rows, each row must be from low to high, and the second parallelism corresponding to the first row of people high, ask how many kinds of arrangement?3 * State tree Mode solution4 * In the form of a state spanning tree, 12 people are numbered from low to high first ,5 * starting from (1; 2), adding 3 a

We often say "think Twice", in which "Think Twice" is the "positive, anti-integration" of the 3 kinds of thinking, that is, positive thinking, reverse thinking and comprehensive thinking.Positive thinking, is from the positive to consider, do one thing the advantages, opportunities, advantages, etc. reverse thinking, is from the negative to consider, do a thing of the disadvantages, weaknesses, problems and even traps; comprehensive thinking, combinin

"100 kinds of Dumb's death method 76 Raiders" 1, the following figure, first click crows and rabbits, shooting them. 2, then click on the small green Monster at the foot of the cricket can pass! "100 kinds of Dumb's death method 77 Raiders" 1, click on drag masks and white hats, to the little Green Monster put on. 2, the last black beard also brought to it, the laser gun will fire small green stran

for system modeling using these graphical symbols and text syntax for developers or development tools. These graphical symbols and literals represent the application-level model, which is semantically an instance of the UML meta model. The standard modeling language UML can be defined by the following 5 class diagrams. L use case diagram: Describes the system function from the user's point of view and points out the operator of each function. L Stati

Activity of four kinds of launchmode.Launchmode plays an important role in the process of multiple activity jumps, it can decide whether to generate new activity instances, whether to reuse existing activity instances, and whether to share a task with other activity instances. Here is a brief introduction to the concept of a task, which is an object with a stack structure, a task that can manage multiple activity, launch an application, and create a c

Original link: Three kinds of sending acceptance protocols in Web services soap/http get/http POSTI. Three kinds of sending acceptance protocols in Web services soap/http get/http POSTIn Web services, there are three options for sending and receiving information: Soap,http get,http POST, but SOAP supports a wider range of data types Soap=rpc+http+xml Soap simple understanding, is such an open

algorithm is a priority in every infrastructure that involves security requirements.The symmetric cipher algorithm has the same cryptographic key and decryption key, and the encryption and decryption process is mutually inverse for most symmetric cipher algorithms.(1) Encryption and decryption communication model(2) Features: algorithm disclosure, low computational capacity, fast encryption speed, high encryption efficiency(3) Weaknesses: Both parties use the same key, security is not guarantee

http://blog.csdn.net/liuhe688/article/details/6754323/The wood of encircle, born of margins, is a platform of nine layers, which begins with the weary Earth; "Lao Tzu"Today in the community to see a friend asked "How to become the top architect in six months", there are netizens "turn off the lights to sleep, not half a year ...", indeed, dreams come faster. As a programmer, to set a lofty goal is worth appreciating, but not only to the fantasy, to step-by-step practice. Those who become great t