比较好的Java 网站

java在线观看(jav在线网站) java在线网站给大家展示6个java在线网站)。后面还有java在线API,各种java在线在线api地址。 java在线观看1、LintCode Java学习爱好者的福音,和LeetCode类似,也是一个刷题的OJ网站,提供闯关式的阶梯训练以及国内外知名大厂的笔试面试真题。它不仅有算法题、数据库题、Java题目可以刷,还有Java和Sql的教程的手把手教程,一遍做题一边学习加深印象,非常地贴心,不过网站内容更适合Java学习爱好者。 阅读详情
1. The Source for Java Technology Collaboration(JAVA开发的官方网站)
http://www.java.net/ - 外文
2. jGuru: FAQ Home Page 推荐
http://www.jguru.com/faq/ - 外文
3. Developer.com: An EarthWeb site
http://www.developer.com/ - 外文
4. the java.blogs community
互联网上最活跃的一个Java Blog网站
http://www.javablogs.com/ - 外文
5. The #1 Java Review Service
提供Java评论服务. 包括各种framework和应用程序
http://www.jars.com/ - 外文
6. programming resources in various categories
http://www.programmingsite.co.uk/ - 外文
7. 非常不错的java开发社区,大量的相关资源,强烈推荐!
http://www.javaresearch.org/ - 中文
8. 中文JAVA技术网 -- 为Java爱好者服务 推荐
http://www.cn-java.com/ - 中文
9. 中国JAVA俱乐部
http://www.cnjavaclub.com/ - 中文
10. Computer Technical Tutorials and Information: Free Technical Tutorials
收集了大量的开发资源,特别是一些指南.点击左边的导航进入,值得好好研究.
http://www.techtutorials.info/ - 外文
11. Tutorials From FunctionX .酷
http://www.functionx.com/ - 外文
12. ACCU 推荐
The ACCU is a non-profit organisation devoted to professionalism in programming at all levels. Although primarily focussed on C and C++, we also have interests in Java, C# and Python. 有非常好的资料,就看你能不能找到.
http://www.accu.org/ - 外文
13. JAVA中文站
一个老牌的站点提供大量的JAVA资料,是目前国内较好的java专业技术网站之一,在J友中已经具有相当的名气。
http://www.java-cn.com/index.html - 中文
14. SUN 中国技术社区 中文官方网站
http://gceclub.sun.com.cn/ - 中文
15. Planet Source Code
一个优秀的代码收集站点,分类清晰,强烈推荐.
http://www.planetsourcecode.com/ - 外文
16. Java频道---中国IT认证实验室
大量的开发文档,分类清晰。
http://java.chinaitlab.com/ - 中文
17. IBM developerworks 中国: Java
http://www-128.ibm.com/developerworks/cn/java/index.html - 中文
18. O'Reilly CodeZoo
http://www.codezoo.com/ - 外文
19. Home of free V GUI C++ library and VIDE C++/Java IDE for Windows and Linux
V Gui C++类库用来开发界面,这样就不需要什么MFC来支持,而且可以很好的移植到LINUX平台。VIDE是一个图形开发平台(象VC,BCB),而且它支持JAVA.可以用来研究。
http://www.objectcentral.com/ - 外文
20. Kaffe.org
Kaffe is a clean room implementation of the Java virtual machine, plus the associated class libraries needed to provide a Java runtime environment. The Kaffe virtual machine is free software, licensed under the terms of the GNU General Public License.
http://www.kaffe.org/ - 外文
21. JAVA学习:www.studyjava.com 推荐
http://www.studyjava.com/ - 中文
22. Java Skyline: Java Servlet/Server Headline News
http://www.javaskyline.com/learning.html - 外文
23. Open Source Software in Java(tm)
http://java-source.net/ - 外文
24. 计算机开发文档英雄贴
大量的编程开发 文档.
http://www.chinadir.net/ - 中文
25. The Java Developers Almanac 1.4
Java开发者年鉴一书的在线版本. 要想快速查到某种Java技巧的用法及示例代码, 这是一个不错的去处. This website supplements the book The Java Developers Almanac 1.4. All the code examples from the book are made available here for you to copy and paste into your programs.

http://www.javaalmanac.com/ - 外文
26. Focus on Java
来自About.com的Java新闻和技术文章网站.
http://java.about.com/ - 外文
27. JavaPro在线杂志网站
http://www.fawcette.com/javapro/ - 外文
28. Java Developers Journal的在线杂志网站.
http://java.sys-con.com/ - 外文
29. 位于Java.net的一个Java桌面技术社区网站.
javaDesktop, a gathering place for members of the Java™ platform's graphical user interface (GUI) community. Here you'll find news, discussions, technical articles, and open source projects that use the Java 2 Platform, Standard Edition (J2SE™) APIs to produce applications with rich client interfaces. (If you're looking for information on the Sun Java Desktop System, you can find it at sun.com.)
http://community.java.net/javadesktop/ - 外文
30. Java Technology
Java technology is a portfolio of products that are based on the power of networks and the idea that the same software should run on many different kinds of systems and devices
http://java.sun.com/ - 外文
31. O'Reilly的Java网站. 每周都有新文章
http://www.onjava.com/ - 外文
32. Gamelan.com -
A Developer.com Site for Java Articles, Tutorials, News, Discussions, and More
http://www.developer.com/java/ - 外文
33. javaworld
http://www.javaworld.com/ - 外文
34. Cnet的Builder.com网站
Cnet的Builder.com网站 - 所有的技术文章, 以Java为主.
http://builder.com.com/ - 外文
35. DevX: Java Zone
http://www.devx.com/java - 外文
36. developerWorks : Java technology of IBM
http://www-130.ibm.com/developerworks/java/ - 外文
37. DevCentral
Check out the best 100% free tutorials and articles on the web for the software development community. It doesn't matter if you are a student or a professional software engineer, DevCentral has content to match everything from learning C to Java Class Loaders. DevCentral provides all these self paced tutorials, technology articles, and downloads for everyone to enjoy for free.
http://devcentral.iticentral.com/default.php - 外文
38. J道:Java和J2EE解决之道
http://www.jdon.com/index.html - 中文
39. 中国Java实验室
http://download.chinaitlab.com/special/javaebook.htm JAVA资料下载
http://www.chinajavalab.com/ - 中文
40. Javalobby -
Sun Java, JSP and J2EE technology programming forums, software downloads, jobs and tutorials
http://www.javalobby.org/ - 外文
41. Central Java Investment Board
http://www.central-java.com/ - 外文
42. RFC-Editor Webpage
进行网络开发的必备资料.
http://www.rfc-editor.org/ - 外文
43. Java开源大全
提供关于开源JAVA项目的相关信息,分类很清晰
http://www.open-open.com/ - 中文
44. Java家
http://www.javajia.com/ - 中文
45. 赛迪网(ccidnet.com)的java文档区
http://tech.ccidnet.com/pub/column/c2369.html - 中文
46. Matrix - 与 Java 共舞
一个计算机开源技术组织,原创内容多,主要涉及java基础、编程、工具与应用服务、j2ee,j2me技术、设计模式等,旨在让更多的人得到进步,他们的口号:Matrix is all!
http://www.matrix.org.cn/ - 中文
47. J2SE - 技术天地 - 赛迪网
http://tech.ccidnet.com/pub/column/c1078.html - 中文
48. Javalobby
Sun Java, JSP and J2EE technology programming forums, software downloads, jobs and tutorials:
http://www.javalobby.com/ - 外文
49. Java爱好者 提供 免费Java教程下载,Java电子书籍,Java技术文章
http://www.javafan.net/ - 中文
50. www.javaside.com
http://www.javaside.com/ - 外文
51. 中国DotNet俱乐部
.Net社区—包括 C#,VB,ASP,Delphi,VC,MS SQL Server,C++,JAVA,JSP
http://www.chinaaspx.com/ - 中文
52. The Java Community Process(SM) Program
http://www.jcp.org/ - 外文
53. 太阳花下载站
大量的java资料下载,有一个搜索引擎。推荐看看
http://www.javadown.com.cn/ - 中文
54. Java examples (example source code) Orgainzed in Topic into Categories
很多文档、范例的Java网站,特别是有200多个SWT/JFace的范例
http://www.java2s.com/ - 外文
55. Java中文博览
收集了很多的java文档,并进行了分类。
http://www.javarss.com.cn/ - 中文
56. www.sa-se.com 系统分析&软件工程
http://www.sa-se.com/ - 中文
57. Java Code and Examples of nokia
http://www.forum.nokia.com/ - 外文
58. java, javscript,Free source code for the taking. Over five million lines of program
http://www.1javastreet.com/ - 外文
59. the one stop programmers resource
Welcome to programmershelp, on this site you will find various resources for programming languages such as c, c++, visual basic, java, php, perl, asp and javascript to name but a few. Source code, forums, tutorials, scripts articles, downloads, book links we have it.
http://www.programmershelp.co.uk/ - 外文
60. Jpowered
http://www.jpowered.com/ - 外文
61. software Java applet application
http://www.thejmaker.com/ - 外文
62. TheServerSide.com
http://www.theserverside.com/ - 外文
63. J道:Java和J2EE解决之道
http://www.jdon.com/ - 中文
64. ::JavaTEA:: 中国软件协会JAVA技术分会
http://www.javatea.org/ - 中文
65. DingL.com
http://www.dingl.com/ - 中文
66. JAVA资源网
http://www.javazy.com/ - 中文
67. J2ME开发网
http://www.j2medev.com/ - 中文
68. 锋网ijsp.net
http://ijsp.net/ - 中文
69. BJUG - Beijing Java User Group
http://www.bjug.org/ - 中文
70. javaidea
http://www.javaidea.net/ - 外文
71. Cookie Nest
Java programming, applets, scripts, downloads, tutorials
http://www.cookienest.com/ - 外文
72. Crack J2EE
http://www.crackj2ee.com - 中文
73. BlogJava - 专注于Java技术
http://www.blogjava.net/ - 中文
74. LaLiLuna
- Tutorials for Struts, JavaServer Faces, JSF, EJB, Hibernate, Eclipse, JBoss, Tomcat
http://www.laliluna.de/ - 外文
75. Java自由人
http://www.javayou.com - 中文
76. JAVA学习室
http://www.java3z.com - 中文
 
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深度学习工具包Deprecation notice.-----This toolbox is outdated and no longer maintained.There are much better tools available for deep learning than this toolbox, e.g. [Theano](http://deeplearning.net/software/theano/), [torch](http://torch.ch/) or [tensorflow](http://www.tensorflow.org/)I would suggest you use one of the tools mentioned above rather than use this toolbox.Best, Rasmus.DeepLearnToolbox================A Matlab toolbox for Deep Learning.Deep Learning is a new subfield of machine learning that focuses on learning deep hierarchical models of data.It is inspired by the human brain's apparent deep (layered, hierarchical) architecture.A good overview of the theory of Deep Learning theory is[Learning Deep Architectures for AI](http://www.iro.umontreal.ca/~bengioy/papers/ftml_book.pdf)For a more informal introduction, see the following videos by Geoffrey Hinton and Andrew Ng.* [The Next Generation of Neural Networks](http://www.youtube.com/watch?v=AyzOUbkUf3M) (Hinton, 2007)* [Recent Developments in Deep Learning](http://www.youtube.com/watch?v=VdIURAu1-aU) (Hinton, 2010)* [Unsupervised Feature Learning and Deep Learning](http://www.youtube.com/watch?v=ZmNOAtZIgIk) (Ng, 2011)If you use this toolbox in your research please cite [Prediction as a candidate for learning deep hierarchical models of data](http://www2.imm.dtu.dk/pubdb/views/publication_details.php?id=6284)```@MASTERSTHESIS\{IMM2012-06284, author = "R. B. Palm", title = "Prediction as a candidate for learning deep hierarchical models of data", year = "2012",}```Contact: rasmusbergpalm at gmail dot comDirectories included in the toolbox-----------------------------------`NN/` - A library for Feedforward Backpropagation Neural Networks`CNN/` - A library for Convolutional Neural Networks`DBN/` - A library for Deep Belief Networks`SAE/` - A library for Stacked Auto-Encoders`CAE/` - A library for Convolutional Auto-Encoders`util/` - Utility functions used by the libraries`data/` - Data used by the examples`tests/` - unit tests to verify toolbox is workingFor references on each library check REFS.mdSetup-----1. Download.2. addpath(genpath('DeepLearnToolbox'));Example: Deep Belief Network---------------------```matlabfunction test_example_DBNload mnist_uint8;train_x = double(train_x) / 255;test_x = double(test_x) / 255;train_y = double(train_y);test_y = double(test_y);%% ex1 train a 100 hidden unit RBM and visualize its weightsrand('state',0)dbn.sizes = [100];opts.numepochs = 1;opts.batchsize = 100;opts.momentum = 0;opts.alpha = 1;dbn = dbnsetup(dbn, train_x, opts);dbn = dbntrain(dbn, train_x, opts);figure; visualize(dbn.rbm{1}.W'); % Visualize the RBM weights%% ex2 train a 100-100 hidden unit DBN and use its weights to initialize a NNrand('state',0)%train dbndbn.sizes = [100 100];opts.numepochs = 1;opts.batchsize = 100;opts.momentum = 0;opts.alpha = 1;dbn = dbnsetup(dbn, train_x, opts);dbn = dbntrain(dbn, train_x, opts);%unfold dbn to nnnn = dbnunfoldtonn(dbn, 10);nn.activation_function = 'sigm';%train nnopts.numepochs = 1;opts.batchsize = 100;nn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.10, 'Too big error');```Example: Stacked Auto-Encoders---------------------```matlabfunction test_example_SAEload mnist_uint8;train_x = double(train_x)/255;test_x = double(test_x)/255;train_y = double(train_y);test_y = double(test_y);%% ex1 train a 100 hidden unit SDAE and use it to initialize a FFNN% Setup and train a stacked denoising autoencoder (SDAE)rand('state',0)sae = saesetup([784 100]);sae.ae{1}.activation_function = 'sigm';sae.ae{1}.learningRate = 1;sae.ae{1}.inputZeroMaskedFraction = 0.5;opts.numepochs = 1;opts.batchsize = 100;sae = saetrain(sae, train_x, opts);visualize(sae.ae{1}.W{1}(:,2:end)')% Use the SDAE to initialize a FFNNnn = nnsetup([784 100 10]);nn.activation_function = 'sigm';nn.learningRate = 1;nn.W{1} = sae.ae{1}.W{1};% Train the FFNNopts.numepochs = 1;opts.batchsize = 100;nn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.16, 'Too big error');```Example: Convolutional Neural Nets---------------------```matlabfunction test_example_CNNload mnist_uint8;train_x = double(reshape(train_x',28,28,60000))/255;test_x = double(reshape(test_x',28,28,10000))/255;train_y = double(train_y');test_y = double(test_y');%% ex1 Train a 6c-2s-12c-2s Convolutional neural network %will run 1 epoch in about 200 second and get around 11% error. %With 100 epochs you'll get around 1.2% errorrand('state',0)cnn.layers = { struct('type', 'i') %input layer struct('type', 'c', 'outputmaps', 6, 'kernelsize', 5) %convolution layer struct('type', 's', 'scale', 2) %sub sampling layer struct('type', 'c', 'outputmaps', 12, 'kernelsize', 5) %convolution layer struct('type', 's', 'scale', 2) %subsampling layer};cnn = cnnsetup(cnn, train_x, train_y);opts.alpha = 1;opts.batchsize = 50;opts.numepochs = 1;cnn = cnntrain(cnn, train_x, train_y, opts);[er, bad] = cnntest(cnn, test_x, test_y);%plot mean squared errorfigure; plot(cnn.rL);assert(er<0.12, 'Too big error');```Example: Neural Networks---------------------```matlabfunction test_example_NNload mnist_uint8;train_x = double(train_x) / 255;test_x = double(test_x) / 255;train_y = double(train_y);test_y = double(test_y);% normalize[train_x, mu, sigma] = zscore(train_x);test_x = normalize(test_x, mu, sigma);%% ex1 vanilla neural netrand('state',0)nn = nnsetup([784 100 10]);opts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samples[nn, L] = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.08, 'Too big error');%% ex2 neural net with L2 weight decayrand('state',0)nn = nnsetup([784 100 10]);nn.weightPenaltyL2 = 1e-4; % L2 weight decayopts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samplesnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex3 neural net with dropoutrand('state',0)nn = nnsetup([784 100 10]);nn.dropoutFraction = 0.5; % Dropout fraction opts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samplesnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex4 neural net with sigmoid activation functionrand('state',0)nn = nnsetup([784 100 10]);nn.activation_function = 'sigm'; % Sigmoid activation functionnn.learningRate = 1; % Sigm require a lower learning rateopts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samplesnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex5 plotting functionalityrand('state',0)nn = nnsetup([784 20 10]);opts.numepochs = 5; % Number of full sweeps through datann.output = 'softmax'; % use softmax outputopts.batchsize = 1000; % Take a mean gradient step over this many samplesopts.plot = 1; % enable plottingnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex6 neural net with sigmoid activation and plotting of validation and training error% split training data into training and validation datavx = train_x(1:10000,:);tx = train_x(10001:end,:);vy = train_y(1:10000,:);ty = train_y(10001:end,:);rand('state',0)nn = nnsetup([784 20 10]); nn.output = 'softmax'; % use softmax outputopts.numepochs = 5; % Number of full sweeps through dataopts.batchsize = 1000; % Take a mean gradient step over this many samplesopts.plot = 1; % enable plottingnn = nntrain(nn, tx, ty, opts, vx, vy); % nntrain takes validation set as last two arguments (optionally)[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');```[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/rasmusbergpalm/deeplearntoolbox/trend.png)](https://bitdeli.com/free "Bitdeli Badge")

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