online programming practice

public OutputStream Getoutputstream (); The other end of the method connection will get input and return a OutputStream object instance public Socket accept (); used to generate "blocking" until a connection is accepted and a client's socket object instance is returned. "Blocking" is a term that causes a program to run temporarily "stuck" in this place until a session is generated, and then the program continues; usually "blocking" is generated by loops.Note: Where both the getInputStream and

Handler program: Enter parameters for several geometric shapes, which require an area-ordered output. Specify the shape when outputting.Input:The first line is the number of geometries N (no more than 100). There are n lines below, with each line beginning with a letter C.If C is ' R ', it represents a rectangle, followed by two integers, respectively, the width and height of the rectangle;If C is ' C ', it represents a circle, and the bank follows an integer representing its radius;If C is ' T

++) { (*iter). _uninit (); } } /** * Add module * * @Param mod * Module*/ voidaddmodule (selfmodule MoD) {_list.push_back (mod); } /** * Find module * * @Param ID * ID of the module to be found * @Return return the found module */SelfmoduleFindmodule (stdstring ID); /** * null reference for module*/ StaticSelfmodule _nullmodule; protected: /** * Module list*/Vector_list; protected: Selfmodulelist (vo

Object-Oriented Programming Practice 8 (Object array) Time Limit: 1000 ms memory limit: 65536 K The topic description uses an array of class objects to input and output n student data (student ID is a string type and score is an integer type. Input n + 1 rows: The integer N in the first line indicates the number of students; The following n rows are the data of N students. The first in each row is

ObjectiveSince as a solid learning technology, there will be a humble, open-minded and the pursuit of excellence in the heart, I can not write a very perfect code at once, but I believe that the step-by-step optimization, the code can become nearly perfect, at least in a particular scenario under the relatively perfect, this and a person has a very similar truth, This is an attitude. A few days ago, I sent my first coding practice in the blog Park, "C

stands for Short;l representative long;*/description the htonl () function converts the unsigned integer hostlong from host byte order t o network byte order. The htons () function converts the unsigned short integer hostshort from host byte order to network byte order. the Ntohl () function converts the unsigned integer netlong from network byte order to host byte order. the Ntohs () function converts the unsigned short integer netshort from network byte order to host

Object-Oriented Programming machine practice 5 (class and object) Time Limit: 1000 ms memory limit: 65536 K The topic description defines the class time. The time has three common data members, hour, Min, and SEC, which respectively indicate hours, minutes, and seconds.Define the time Class Object T1 in the main function, input the data members of T1 in the main function, and then out

[Java concurrent programming practice] ----- "J. U. C": Exchanger We have introduced three synchronization auxiliary classes: CyclicBarrier, Barrier, and Phaser. This blog introduces the last one: Exchanger. Jdk api is introduced as follows: synchronization points of threads that can pair and exchange elements in a pair. Each thread presents a method on the entry to the exchange method, matches with the par

. volatilevariables are not cached in registers or in places that are not visible to other processors, so the volatile most recently written value is always returned when a variable of type is read.volatileYou should use variables only if they simplify the implementation of your code and validate your synchronization policies. If you need to make complex judgments about visibility when validating correctness, do not use volatile variables. volatilethe correct use of variables includes:

1 //C + + Programming Basics General exercise. CPP: The entry point that defines the console application. 2 //3 4#include"stdafx.h"5#include 6#include string>7#include 8#include 9#include Ten using namespacestd; One A structMygame - { - stringgamename; the floatgrade; - }; - - voidTest1 (); + intMain () - { + Test1 (); A at return 0; - } - //========================== Practice ===============

In the Java Concurrency Programming practice, 4.4 mentions the method of locking the client. This is a validation example, but it is not good to write, but you can see the result. Packagecom.blackbread.test;Importjava.util.ArrayList;Importjava.util.Collections;Importjava.util.List;ImportJava.util.concurrent.ExecutorService;Importjava.util.concurrent.Executors; Public classGoodlisthelper { PubliclistNewA

Why are FIND_FROM_ADDR () and find_subject () so different? For example, FIND_FROM_ADDR () returns a bool value, while Find_subject () returns a string. The reason is that we want to explain: FIND_FROM_ADDR () should distinguish between two different cases where the address line is empty ("") and no address lines. For the first case, FIND_FROM_ADDR () returns True (because the address row was found) and the S is set to the empty string "" (because the address is empty). For the second case

not defined in the matrix library, so we define this operation for the test program:Vector operator* (const matrix2m, const VECTORU) {Const Index n = m.dim1 (); Vector v (n); for (Index i = 0; i Random_matrix () and Random_vector () are simple applications of random numbers. Index is an indexed type, which is defined by a typedef.Complete program:#include 　　Principles and Practice of C + + programming (Adv

, the same problem occurs when the value of v.size () is greater than or equal to 2*1024*1024*1024.To avoid this problem, we can use the Size_tupe or iterator provided by the vector:For (VectorSize_tupe is guaranteed to be unsigned, so the first form (using unsigned numbers) is more than the version of the INT-type loop variable, with a bits that represents the value of the loop variable (not the symbol). This improvement is important, but after all it is just one more to indicate the scope of t

template classes that are instantiated by class templates Different data types specified for type parameters, different template classes obtained The two template classes of the same class template are incompatiblepairfunction templates as class template members#include Note that the type parameters of the class template, and the type parameters of the member function template, are not consistent.If the function template is changed to templates The parameter declarations for class

C # Programming Practice-help my wife calculate the maternity leave planDuring lunch break at noon today, I chatted with my wife. My wife has to take maternity leave in a few days. She asked me on the Internet to help her count how to ask for leave, which is the most cost-effective, my wife is a person who will live. Of course, it is incumbent on me to face this kind of requirement, but my first response to

You can tap to write the following practice code, to see the results of the operation, are very simple, the key to understand.If# include If Example 2:# include scanf Example 1:# include scanf Example 2:# include Storage of floating-point numbers:# include BOOL Variable:# include Fetch address character :# include Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. Introduction to C

= 0X7FFF5EA3D250PTR2 = 0x7fff5ea3d250Although the array name variable cannot be changed directly, we still change a pointer to the array. In the code, we created two arrays, two int pointers. We gave the numbers to PTR1 and gave numbers2 to PTR2. Then we assign the PTR2 to the PTR1, and the final output results. As you can see, both PTR1 and Ptr2 point to the first element of the NUMBERS2 array.SummarizeI want you to enjoy this overview of arrays and pointers in C. We did not include all the kn

Programming, in fact, is a very exercise-mind activities.Recently began to slowly deep into the process of exposure to some of the environment configuration of the content, encountered some can not find the reason, but also found no solution to the problem, so very annoyed, even crazy: swearing, want to smash computer.Calm down to think, their practice is still far from enough, although the recent contact w

I always wanted to learn Java because of curiosity and free. But because it is not used at work, and it is too high in hardware configuration, it is only occasionally used to learn. I have found tutorials and articles on the Internet, but I have not learned anything. I also bought more than 700 pages of Java j2se 5 edition reference book, because it is too thick to read. Finally, I bought a "Java programming pract