learn core java online

There are several core objects in NiO that need to be mastered: buffer, channel, selector (Selector).Buffer buffersBuffer is actually a container object, more directly, is actually an array, in the NIO library, all the data are processed in buffer. When the data is read, it is read directly into the buffer, and it is written to the buffer when the data is written, and any time the data in the NIO is accessed, it is placed in the buffer. In a stream-or

Recently in the study of the online mall, access to a message to send the function. have been using the mailbox to send mail, but the specific how the operation is not know what is going on. So what exactly is the message sent? Mail Send process: Process Description: first of all, the sender sends the message through the client software to a specific server and then transmits it via the email Simple Transfer Protocol (SMTP), where the recipient ac

Questions about how to put the Java Web online and deploy it to a public network so that people all over the world can access it. Small series will be made serialization, complete process introduction. 1. In myeclipse to develop a good project, packaged into the war format, the students will not refer to the following Http://zhidao.baidu.com/link?url=Gb0OV9pHiDtJr8nyjPrnSA65g49I4TEAn2N3pwXsxzVsCaX0gJ8RQZHQ2

. By the way, this example will definitely not be small, it'll only make you feel big, and he's still a real commercial framework.6. Learn to modify classic examplesBy combining the design patterns you learned earlier, you'll be able to understand these classic examples very well. And you can use him to implement some simple system. If he can be further modified to find out where you feel you can improve performance, plus your own design, it will be a

ideas, will not conform to the same.On the Micro:1. You need to be proficient in object-oriented analysis and Design (ooa/ood), involving patterns (GOF,J2EEDP), and integrated patterns. You should have a great understanding of UML, especially Class,object,interaction and Statediagrams. 2. You need to learn the basics of the Java language and its core class libra

Use the Java language to write a simulation of the online supermarket shopping settlement function of the program, requires the program to run a graphical user interface, for users to enter the purchase of various goods related information, and finally give the user's shopping list and the total price. Requirements Analysis: 1. Administrator to add goods and their price 2. User Purchase goods print order

This article outlines the 13 Reasons Why Java programmers shocould learn flex and blazeds. it talks about why flex with blazeds is one of the best choices for developing rich Internet applications (RIAs)-from highly interactive websites to enterprise applications with Java back ends. most importantly, it shows the high return on investment (ROI) that this combina

Question one, prepare the article 1 What is the Java EE? What is the difference between it and normal Java? A: Java EE is all called Java2 Platform, Enterprise Edition. "The Java-EE platform is essentially a distributed server application design environment--a java-based en

Java source code is a *.java plain text file that can be written using any text editor, but this source is not executable. This task, which executes the source code, requires JDK and JRE. The JDK is a Java language development package that compiles the *.java end of a file into a

The day before yesterday to introduce you to the Java beginners should learn which foundation, is also the United States Network small series from the Java three general direction: J2SE, J2ME, and we do the Outlook analysis, these two days also received a lot of feedback from everyone, Many small partners looked at their own