fun programming projects java

, Java appears to be in the way, the Java Shop system from the basic technician wages, server purchases are higher than the PHP shop system n times, and PHP in the server and database are basically open source products, can greatly reduce the system development and operation costs, This should also be the PHP shop system by the vast number of netizens favor the important factors. The analysis of the shop s

Java programming 57-object-oriented Basics Chen yuefeng, Zhengzhou game college From:Http://blog.csdn.net/mailbombChapter 8 object-oriented In a program, the core is the data structure and algorithm. Different programs need to design different data structures as needed, and then rely on the functions of the program and the data structure to design the corresponding algorithms, this design method is the unde

;sc.open (); Sc.close () ;}}}} PCI interface, external exposure principle interfacepci{publicabstractvoidopen ();//Open Hardware Publicabstract voidclose ();//Turn off hardware}//Nic class Classnetworkcardimplementspci{publicvoidopen () {System.out. println ("Networkcardrun");} Publicvoidclose () {System.out.println ("Networkcardclose");}} Sound card class Classsoundcardimplementspci{publicvoidopen () {System.out.println ("soundcard fun ");} Publicvoi

Intera A;A= new B ();A.fun ();A = new C ();A.fun ();}} The output results are: This is B This is CIn the example above, Class B and Class C are two classes that implement Interface Intera. Implementing the Interface Method Fun (), by assigning the instance of Class B and Class C to interface reference A, we implement the dynamic binding of the method at runtime, and make full use of "one interface, multiple methods" to show the dynamic pol

The Java language provides an interface mechanism. This interface makes Java object-oriented programming more flexible. We can use interfaces to define the expression of a class, but interfaces cannot contain any implementations. In the book thinking in Java, the author describes interfaces as follows: "interfaces are

Java programming things 71mso-hansi-font-family: calibri "> -- Introduction to internal classes Chen yuefeng From: http://blog.csdn.net/mailbomb 8.10 inner class) The internal class is a special syntax in the javamso-Hansi-font-family: calibri "> language. In short, it is to declare a class inside the class, these declarations are called internal classes in the class. In actual declaration, the internal c

xml| programming XML, as a universal structured language, is becoming more and more popular, and various development platforms (such as the Microsoft Studio series, Oracle series, Inprise Borland series) also support XML development as one of the promotional slogans. Because the author engaged in the Electronic government development earlier introduced XML, so tasted a lot of sweetness, in many projects usi

Java programming those things 14-Eclipse basic use of advanced Author: Chen yuefeng from: http://blog.csdn.net/mailbomb 2.2.4 advanced eclipse basic usageAfter familiar with the basic use of Eclipse, I will add other common eclipse operations below, mainly including the following skills: L classification project directory l open the project l add jdkl add source code l shortcut speed Query 2.2.4.1 category

The concept will not be said.For a lot of NIO's open source framework, I used Mina in two projects, mainly processing data codec. This piece is done, the network part is finished mostly.Now write network programming, no longer use the framework, directly using the Java NIO API written, fast, easy, flexible, free.Of course, if the concept of NIO is not familiar wi

the code that refers to a method, you can quickly locate all references to this method by using the "ctrl+shift+g" shortcut key.5. "Ctrl+shift+o"Quickly generate import, when copying a program from the Internet, do not know how to import into the called class, try "ctrl+shift+o" shortcut keys, there will be surprises.6. "Ctrl+shift+f"Format code, write the code of the format specification is a compulsory lesson for every programmer, when see a piece of code is very uncomfortable, select and pre

locate all references to this method by using the "ctrl+shift+g" shortcut key.5. "Ctrl+shift+o"Quickly generate import, when copying a program from the Internet, do not know how to import into the called class, try "ctrl+shift+o" shortcut keys, there will be surprises.6. "Ctrl+shift+f"Format code, write the code of the format specification is a compulsory lesson for every programmer, when see a piece of code is very uncomfortable, select and press "ctrl+shift+f" shortcut key can format this cod

locate all references to this method by using the "ctrl+shift+g" shortcut key.5. "Ctrl+shift+o"Quickly generate import, when copying a program from the Internet, do not know how to import into the called class, try "ctrl+shift+o" shortcut keys, there will be surprises.6. "Ctrl+shift+f"Format code, write the code of the format specification is a compulsory lesson for every programmer, when see a piece of code is very uncomfortable, select and press "ctrl+shift+f" shortcut key can format this cod

Java programming those things 30-Process Control basics Zhengzhou game college Chen yuefeng from: http://blog.csdn.net/mailbomb Chapter 5 Process ControlA process refers to the execution sequence of a program, and a process control refers to the function of implementing the requirements by controlling the execution sequence of the program. The process control part is the combination of language and logic in

to think about some of the problems in C that are solved in Java, such as "eat a carriage return" problem, in C language we have to usefflush(stdin);Clears the buffer. In Java, useScanner reader=new Scanner(System.in);String str=reader.nextLine();ReplaceScanner reader=new Scanner(System.in);String str=reader.next();The former receives a carriage return when the string is received, similar to the C language

Java 9 Programming by Example.pdf Https://www.packtpub.com/application-development/java-9-programming-example Book Description This book gets your started with essential software development easily and quickly, guiding you through Java ' s different FA Cets. By adoptin

Java programming 68 -- abstract classes and interfaces (1) Chen yuefeng From:Http://blog.csdn.net/mailbomb 8.9 abstract classes and interfaces In actual projects, the code of the entire project can generally be divided into Structure Code and logic code. Just like when building a house, you need to first build the structure of the whole House, and then refine

XML, as a common structured language in the world, is becoming more and more popular, with various development platforms (such as Microsoft studio series, Oracle series, and inprise Borland series) XML development is also supported as one of the product features. Because XML was introduced earlier in e-government development, I have tasted a lot of sweetness and used XML data to exchange information in many projects, saving a lot of trouble, without t