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rss2.xml
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<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0"
xmlns:atom="http://www.w3.org/2005/Atom"
xmlns:content="http://purl.org/rss/1.0/modules/content/">
<channel>
<title>seventeams</title>
<link>http://blog.seventeams.cn/</link>
<atom:link href="/rss2.xml" rel="self" type="application/rss+xml"/>
<description>个人博客,记录自己</description>
<pubDate>Tue, 05 Sep 2017 12:45:42 GMT</pubDate>
<generator>http://hexo.io/</generator>
<item>
<title>Java编程思想之java多线程基础</title>
<link>http://blog.seventeams.cn/2017/09/05/Java%E7%BC%96%E7%A8%8B%E6%80%9D%E6%83%B3%E4%B9%8Bjava%E5%A4%9A%E7%BA%BF%E7%A8%8B%E5%9F%BA%E7%A1%80/</link>
<guid>http://blog.seventeams.cn/2017/09/05/Java%E7%BC%96%E7%A8%8B%E6%80%9D%E6%83%B3%E4%B9%8Bjava%E5%A4%9A%E7%BA%BF%E7%A8%8B%E5%9F%BA%E7%A1%80/</guid>
<pubDate>Tue, 05 Sep 2017 12:31:33 GMT</pubDate>
<description>
<blockquote>
<p>并发“具有可论证的确定性，但是实际上具有不可确定性”</p>
</blockquote>
<h2 id="实现与创建线程"><a href="#实现与创建线程" class="headerlink" title="实现与创建线程"></a>实现与创建线程</h2><h3 id="实现"><a href="#实现" class="headerlink" title="实现"></a>实现</h3><h4 id="1-实现Runnable接口"><a href="#1-实现Runnable接口" class="headerlink" title="1. 实现Runnable接口"></a>1. 实现Runnable接口</h4><figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div></pre></td><td class="code"><pre><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">LiftOff</span> <span class="keyword">implements</span> <span class="title">Runnable</span> </span>&#123;</div><div class="line"> <span class="keyword">protected</span> <span class="keyword">int</span> countDown = <span class="number">10</span>;</div><div class="line"> <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">int</span> taskCount = <span class="number">0</span>;</div><div class="line"> <span class="keyword">private</span> <span class="keyword">final</span> <span class="keyword">int</span> id = taskCount++;</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="title">LiftOff</span><span class="params">()</span> </span>&#123;</div><div class="line"> &#125;</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="title">LiftOff</span><span class="params">(<span class="keyword">int</span> countDown)</span> </span>&#123;</div><div class="line"> <span class="keyword">this</span>.countDown = countDown;</div><div class="line"> &#125;</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> String <span class="title">status</span><span class="params">()</span> </span>&#123;</div><div class="line"> <span class="keyword">return</span> <span class="string">"#"</span> + id + <span class="string">"("</span> + (countDown &gt; <span class="number">0</span> ? countDown : <span class="string">"LiftOff!"</span>) + <span class="string">"),"</span>;</div><div class="line"></div><div class="line"> &#125;</div><div class="line"></div><div class="line"> <span class="meta">@Override</span></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">run</span><span class="params">()</span> </span>&#123;</div><div class="line"><span class="comment">// System.out.println(Thread.currentThread().getName());</span></div><div class="line"> <span class="keyword">while</span> (countDown-- &gt;<span class="number">0</span>)&#123;</div><div class="line"> System.out.print(status());</div><div class="line"> Thread.yield();</div><div class="line"> &#125;</div><div class="line"> System.out.println();</div><div class="line"> &#125;</div><div class="line">&#125;</div></pre></td></tr></table></figure>
</description>
<comments>http://blog.seventeams.cn/2017/09/05/Java%E7%BC%96%E7%A8%8B%E6%80%9D%E6%83%B3%E4%B9%8Bjava%E5%A4%9A%E7%BA%BF%E7%A8%8B%E5%9F%BA%E7%A1%80/#disqus_thread</comments>
</item>
<item>
<title>合并排序 Java实现</title>
<link>http://blog.seventeams.cn/2017/08/13/MergeSort-in-algs4/</link>
<guid>http://blog.seventeams.cn/2017/08/13/MergeSort-in-algs4/</guid>
<pubDate>Sun, 13 Aug 2017 14:33:25 GMT</pubDate>
<description>
<h1 id="合并排序-MergeSort"><a href="#合并排序-MergeSort" class="headerlink" title="合并排序 MergeSort"></a>合并排序 MergeSort</h1><h2 id="算法步骤-分治法"><a href="#算法步骤-分治法" class="headerlink" title="算法步骤(分治法)"></a>算法步骤(分治法)</h2><ul>
<li>将数组分成两半</li>
<li>递归排序每一部分</li>
<li>合并两部分<br><img src="/2017/08/13/MergeSort-in-algs4/59918d4fab644147bd001fcd.png" alt="basic plan of merge sort "></li>
</ul>
</description>
<comments>http://blog.seventeams.cn/2017/08/13/MergeSort-in-algs4/#disqus_thread</comments>
</item>
<item>
<title>学习Retrofit 使用和理解</title>
<link>http://blog.seventeams.cn/2017/08/08/retrofit-%E5%AD%A6%E4%B9%A0/</link>
<guid>http://blog.seventeams.cn/2017/08/08/retrofit-%E5%AD%A6%E4%B9%A0/</guid>
<pubDate>Tue, 08 Aug 2017 12:39:28 GMT</pubDate>
<description>
<p>基本用法</p>
<ol>
<li><h2 id="添加依赖"><a href="#添加依赖" class="headerlink" title="添加依赖"></a>添加依赖</h2><figure class="highlight groovy"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div></pre></td><td class="code"><pre><div class="line">compile <span class="string">'com.squareup.retrofit2:retrofit:2.3.0'</span></div><div class="line">compile <span class="string">'com.squareup.retrofit2:converter-gson:2.3.0'</span></div></pre></td></tr></table></figure>
<p>在build.gradle添加retrofit2的最新版本就行了</p>
</li>
<li><h2 id="构建retrofit"><a href="#构建retrofit" class="headerlink" title="构建retrofit"></a>构建retrofit</h2><p>构建retrofit实例,使用retrofit来处理HTTP请求</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div></pre></td><td class="code"><pre><div class="line">Retrofit retrofit = <span class="keyword">new</span> Retrofit.Builder()</div><div class="line"> .baseUrl(<span class="string">"https://api.github.com/"</span>)</div><div class="line"> .addConverterFactory(GsonConverterFactory.create())</div><div class="line"> .build();</div></pre></td></tr></table></figure>
</li>
<li><h2 id="构建请求接口"><a href="#构建请求接口" class="headerlink" title="构建请求接口"></a>构建请求接口</h2><p>定义Http请求接口:请求链接，参数，返回接口等(要提前定义好数据类bean，即json格式解析的数)</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div></pre></td><td class="code"><pre><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">interface</span> <span class="title">GithubService</span> </span>&#123;</div><div class="line"> <span class="meta">@GET</span>(<span class="string">"users/&#123;user&#125;/repos"</span>)</div><div class="line"> Call&lt;List&lt;GithubRepo&gt;&gt; listRepos(<span class="meta">@Path</span>(<span class="string">"user"</span>) String user);</div><div class="line">&#125;</div></pre></td></tr></table></figure>
<p>使用retrofit创建http请求服务</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div></pre></td><td class="code"><pre><div class="line">GithubService githubService = retrofit.create(GithubService.class);</div></pre></td></tr></table></figure>
</li>
<li><h2 id="执行请求-使用默认CallAdapter"><a href="#执行请求-使用默认CallAdapter" class="headerlink" title="执行请求(使用默认CallAdapter,)"></a>执行请求(使用默认CallAdapter,)</h2><p>执行http请求</p>
<h4 id="异步"><a href="#异步" class="headerlink" title="异步"></a>异步</h4><figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div></pre></td><td class="code"><pre><div class="line">Call&lt;List&lt;GithubRepo&gt;&gt; call = githubService.listRepos(<span class="string">"zsyzzx"</span>);</div><div class="line">call.enqueue(<span class="keyword">new</span> Callback&lt;List&lt;GithubRepo&gt;&gt;() &#123;</div><div class="line"> <span class="meta">@Override</span></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onResponse</span><span class="params">(Call&lt;List&lt;GithubRepo&gt;&gt; call, Response&lt;List&lt;GithubRepo&gt;&gt; response)</span> </span>&#123;</div><div class="line"> <span class="comment">//请求成功，respond.body()是数据，在此加上自己需要的操作</span></div><div class="line"> List&lt;GithubRepo&gt; repos = response.body();</div><div class="line"> Log.e(<span class="string">"success"</span>,repos.toString());</div><div class="line"> listview.setAdapter(<span class="keyword">new</span> GithubRepoAdapter(MainActivity.<span class="keyword">this</span>,repos));</div><div class="line"> &#125;</div><div class="line"> <span class="meta">@Override</span></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">onFailure</span><span class="params">(Call&lt;List&lt;GithubRepo&gt;&gt; call, Throwable t)</span> </span>&#123;</div><div class="line"> <span class="comment">//网络请求失败，失败处理</span></div><div class="line"> Toast.makeText(MainActivity.<span class="keyword">this</span>, <span class="string">"Error: "</span>+t.toString() , Toast.LENGTH_SHORT).show();</div><div class="line"> &#125;</div><div class="line">&#125;);</div></pre></td></tr></table></figure>
<h4 id="同步"><a href="#同步" class="headerlink" title="同步"></a>同步</h4><p>在Android主线程运行时，要新开一个线程，否则会报错</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div></pre></td><td class="code"><pre><div class="line">Call&lt;List&lt;GithubRepo&gt;&gt; call = githubService.listRepos(<span class="string">"zsyzzx"</span>);</div><div class="line">Response&lt;List&lt;GithubRepo&gt;&gt; lists = call.execute();</div></pre></td></tr></table></figure>
</li>
<li><h2 id="处理返回体"><a href="#处理返回体" class="headerlink" title="处理返回体"></a>处理返回体</h2><p>不论是同步请求，还是异步请求，其原生的返回数据体是<code>Response&lt;T&gt;</code> 如果要操作网络请求返回结果的话, 就是操作<code>Response&lt;T&gt;</code>,可以使用debug功能看Response里的参数,每个参数的意义，可以使用chrome的控制台来了解</p>
<p><img src="/2017/08/08/retrofit-学习/1_retrofit.png" alt="1_retrofit"></p></li></ol>
</description>
<comments>http://blog.seventeams.cn/2017/08/08/retrofit-%E5%AD%A6%E4%B9%A0/#disqus_thread</comments>
</item>
<item>
<title>学习Dagger2 第一天</title>
<link>http://blog.seventeams.cn/2017/08/02/%E5%AD%A6%E4%B9%A0dagger2-%E7%AC%AC%E4%B8%80%E5%A4%A9/</link>
<guid>http://blog.seventeams.cn/2017/08/02/%E5%AD%A6%E4%B9%A0dagger2-%E7%AC%AC%E4%B8%80%E5%A4%A9/</guid>
<pubDate>Wed, 02 Aug 2017 13:29:01 GMT</pubDate>
<description>
<h1 id="Dagger2-学习"><a href="#Dagger2-学习" class="headerlink" title="Dagger2 学习"></a>Dagger2 学习</h1><h2 id="使用方法-Demo代码"><a href="#使用方法-Demo代码" class="headerlink" title="使用方法(Demo代码)"></a>使用方法(Demo代码)</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div><div class="line">29</div><div class="line">30</div><div class="line">31</div><div class="line">32</div><div class="line">33</div><div class="line">34</div><div class="line">35</div><div class="line">36</div><div class="line">37</div><div class="line">38</div><div class="line">39</div><div class="line">40</div><div class="line">41</div><div class="line">42</div><div class="line">43</div><div class="line">44</div><div class="line">45</div><div class="line">46</div><div class="line">47</div><div class="line">48</div><div class="line">49</div><div class="line">50</div><div class="line">51</div><div class="line">52</div><div class="line">53</div><div class="line">54</div><div class="line">55</div><div class="line">56</div><div class="line">57</div></pre></td><td class="code"><pre><div class="line"><span class="comment">//Component</span></div><div class="line"><span class="comment">/*</span></div><div class="line">* 中间人，注入器</div><div class="line">* 处理依赖提供（目标类依赖实力）和依赖需求者（目标类）</div><div class="line">* 可以是抽象类或者是个接口</div><div class="line">*/</div><div class="line"><span class="meta">@Component</span>(modules = CarMoudle.class)</div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">interface</span> <span class="title">CarComponent</span> </span>&#123;</div><div class="line"> <span class="function"><span class="keyword">void</span> <span class="title">inject</span><span class="params">(Car car)</span></span>;</div><div class="line"></div><div class="line">&#125;</div><div class="line"></div><div class="line"><span class="comment">// Module</span></div><div class="line"><span class="comment">/*</span></div><div class="line">* 依赖提供者，</div><div class="line">* 管理依赖，</div><div class="line">* 如果以后构造函数或依赖变化，就只需改动这里就行</div><div class="line">* 类似工厂方法，创建依赖类实例</div><div class="line">* 可以使用其他第三方库作为依赖提供</div><div class="line">* */</div><div class="line"><span class="meta">@Module</span></div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">CarMoudle</span> </span>&#123;</div><div class="line"> <span class="meta">@Provides</span></div><div class="line"> <span class="function"><span class="keyword">public</span> Engine <span class="title">provideEngine</span><span class="params">()</span></span>&#123;</div><div class="line"> <span class="keyword">return</span> <span class="keyword">new</span> Engine();</div><div class="line"> &#125;</div><div class="line"> <span class="meta">@Provides</span></div><div class="line"> <span class="function"><span class="keyword">public</span> Seat <span class="title">provideSeat</span><span class="params">()</span></span>&#123;</div><div class="line"> <span class="keyword">return</span> <span class="keyword">new</span> Seat();</div><div class="line"> &#125;</div><div class="line"> <span class="meta">@Provides</span></div><div class="line"> <span class="function"><span class="keyword">public</span> Wheel <span class="title">provideWheel</span><span class="params">()</span></span>&#123;</div><div class="line"> <span class="keyword">return</span> <span class="keyword">new</span> Wheel();</div><div class="line"> &#125;</div><div class="line"></div><div class="line">&#125;</div><div class="line"><span class="comment">// 使用 （@Inject）</span></div><div class="line"><span class="comment">/*</span></div><div class="line"> * 利用Dagger2生成的类来传入依赖对象</div><div class="line"> **/</div><div class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">Car</span> </span>&#123;</div><div class="line"></div><div class="line"> <span class="meta">@Inject</span></div><div class="line"> Engine engine;</div><div class="line"> <span class="meta">@Inject</span></div><div class="line"> Wheel wheel;</div><div class="line"> <span class="meta">@Inject</span></div><div class="line"> Seat seat;</div><div class="line"></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="title">Car</span><span class="params">()</span> </span>&#123;</div><div class="line"> DaggerCarComponent</div><div class="line"> .builder()</div><div class="line"> .carMoudle(<span class="keyword">new</span> CarMoudle()) <span class="comment">//初始化carmoudle</span></div><div class="line"> .build()</div><div class="line"> .inject(<span class="keyword">this</span>);</div><div class="line"> Log.d(Config.TAG, <span class="string">"new Car() Dagger"</span>);</div><div class="line"> &#125;</div></pre></td></tr></table></figure>
</description>
<comments>http://blog.seventeams.cn/2017/08/02/%E5%AD%A6%E4%B9%A0dagger2-%E7%AC%AC%E4%B8%80%E5%A4%A9/#disqus_thread</comments>
</item>
<item>
<title>QuickSort学习之快排算法的若干实现方法</title>
<link>http://blog.seventeams.cn/2017/08/01/QuickSort-in-algs4/</link>
<guid>http://blog.seventeams.cn/2017/08/01/QuickSort-in-algs4/</guid>
<pubDate>Tue, 01 Aug 2017 13:18:09 GMT</pubDate>
<description>
<h1 id="快速排序"><a href="#快速排序" class="headerlink" title="快速排序"></a>快速排序</h1><h2 id="介绍：分治排序算法，以一个特定元素为分界，划分成两个子数组，两个子数组有序时整个数组就有序"><a href="#介绍：分治排序算法，以一个特定元素为分界，划分成两个子数组，两个子数组有序时整个数组就有序" class="headerlink" title="介绍：分治排序算法，以一个特定元素为分界，划分成两个子数组，两个子数组有序时整个数组就有序"></a>介绍：分治排序算法，以一个特定元素为分界，划分成两个子数组，两个子数组有序时整个数组就有序</h2><p><img src="/2017/08/01/QuickSort-in-algs4/59531b5bab64412994000806.png" alt="quicksort"></p>
<h2 id="普通写法-递归调用"><a href="#普通写法-递归调用" class="headerlink" title="普通写法(递归调用)"></a>普通写法(递归调用)</h2><p>快排分为两部分:</p>
<ul>
<li>分片(划分)<br>找到一个值，根据这个值将数组分为两个子数组<br>最初默认使用数组最左边元素为分界值</li>
<li>排序<br>逐渐是子数组排序，从而整个数组是有序的</li>
</ul>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div><div class="line">28</div></pre></td><td class="code"><pre><div class="line"><span class="comment">// 分片, 分为两片&lt;v 与&gt;v </span></div><div class="line"><span class="function"><span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">int</span> <span class="title">partition</span><span class="params">(Comparable[] a, <span class="keyword">int</span> lo, <span class="keyword">int</span> hi)</span> </span>&#123;</div><div class="line"> <span class="keyword">int</span> i = lo, j = hi + <span class="number">1</span>;</div><div class="line"> Comparable v = a[lo];</div><div class="line"> <span class="keyword">while</span> (<span class="keyword">true</span>) &#123;</div><div class="line"> <span class="keyword">while</span> (less(a[++i], v)) <span class="keyword">if</span> (i == hi) <span class="keyword">break</span>;</div><div class="line"> <span class="keyword">while</span> (less(v,a[--j])) <span class="keyword">if</span>(j == lo) <span class="keyword">break</span>;</div><div class="line"> <span class="keyword">if</span> (i&gt;=j) <span class="keyword">break</span>;</div><div class="line"> exchange(a,i,j);</div><div class="line"> &#125;</div><div class="line"> exchange(a,j,lo); </div><div class="line"> <span class="keyword">return</span> j;</div><div class="line"> &#125;</div><div class="line"></div><div class="line"></div><div class="line"><span class="comment">// 排序</span></div><div class="line"><span class="function"><span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">sort</span><span class="params">(Comparable[] a ,<span class="keyword">int</span> lo, <span class="keyword">int</span> hi)</span></span>&#123;</div><div class="line"> <span class="keyword">if</span> (hi &lt;= lo) <span class="keyword">return</span>;</div><div class="line"> <span class="keyword">int</span> j = partition(a,lo,hi);</div><div class="line"> sort(a,lo,j-<span class="number">1</span>);</div><div class="line"> sort(a,j+<span class="number">1</span>,hi);</div><div class="line"> &#125;</div><div class="line"> </div><div class="line"><span class="comment">// 对外使用接口</span></div><div class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">sort</span><span class="params">(Comparable[] a)</span></span>&#123;</div><div class="line"> StdRandom.shuffle(a); <span class="comment">// 使数组乱序,快排更高效</span></div><div class="line"> sort(a,<span class="number">0</span>,a.length-<span class="number">1</span>);</div><div class="line"> &#125;</div></pre></td></tr></table></figure>
</description>
<comments>http://blog.seventeams.cn/2017/08/01/QuickSort-in-algs4/#disqus_thread</comments>
</item>
<item>
<title>Algs4中基础排序的java代码实现</title>
<link>http://blog.seventeams.cn/2017/06/07/notes-of-elementary-sorts-in-algs4/</link>
<guid>http://blog.seventeams.cn/2017/06/07/notes-of-elementary-sorts-in-algs4/</guid>
<pubDate>Wed, 07 Jun 2017 10:11:43 GMT</pubDate>
<description>
<h1 id="冒泡排序"><a href="#冒泡排序" class="headerlink" title="冒泡排序"></a>冒泡排序</h1><h2 id="特性："><a href="#特性：" class="headerlink" title="特性："></a>特性：</h2><ul>
<li>每两个元素进行比较，大的逐渐往一边移动</li>
<li>最小(最大)的元素总是第一个被排好序，并集中在数组的末端(或者开始)<h2 id="基本写法"><a href="#基本写法" class="headerlink" title="基本写法:"></a>基本写法:</h2><figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div></pre></td><td class="code"><pre><div class="line"><span class="comment">// 需要自己实现比较和交换函数</span></div><div class="line"><span class="function"><span class="keyword">public</span> <span class="keyword">void</span> <span class="title">bubblesort</span><span class="params">(Comparable[]a)</span></span>&#123;</div><div class="line"><span class="keyword">int</span> n = a.length;</div><div class="line"><span class="keyword">for</span>(<span class="keyword">int</span> i=<span class="number">0</span>;i&lt;n-<span class="number">1</span>;i++)&#123;<span class="comment">//记录已经排序的元素的数量</span></div><div class="line"> <span class="keyword">for</span>(<span class="keyword">int</span> j=<span class="number">0</span>;j&lt;n-i-<span class="number">1</span>;j++)&#123;<span class="comment">//开始排序，除去了已经排序了的</span></div><div class="line"> <span class="keyword">if</span>(a[j]&lt;a[j+<span class="number">1</span>])&#123; <span class="comment">//降序排列</span></div><div class="line"> swap(a,j,j+<span class="number">1</span>);</div><div class="line"> &#125;</div><div class="line"> &#125;</div><div class="line"> &#125;</div><div class="line">&#125;</div></pre></td></tr></table></figure>
</li>
</ul>
<figure class="highlight java"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div></pre></td><td class="code"><pre><div class="line"><span class="comment">//比较函数参考</span></div><div class="line"><span class="function"><span class="keyword">static</span> <span class="keyword">boolean</span> <span class="title">less</span><span class="params">(Comparable v, Comparable w)</span> </span>&#123;</div><div class="line"> <span class="keyword">return</span> v.compareTo(w) &lt; <span class="number">0</span>;</div><div class="line"> &#125;</div><div class="line"><span class="comment">//交换函数</span></div><div class="line"><span class="function"><span class="keyword">static</span> <span class="keyword">void</span> <span class="title">exchange</span><span class="params">(Object[] a, <span class="keyword">int</span> i, <span class="keyword">int</span> j)</span> </span>&#123;</div><div class="line"> Object swap = a[i];</div><div class="line"> a[i] = a[j];</div><div class="line"> a[j] = swap;</div><div class="line"> &#125;</div></pre></td></tr></table></figure>
<p>上面的写法是最开始能够想到的,但如果把排序过程打印出来的话，也可以用这个算法派有序的输入，就会发现重复排序的情况，就是说这个程序会一直执行下去，不管输入是否已经有序<br><img src="/2017/06/07/notes-of-elementary-sorts-in-algs4/592e7984ab6441510f0011b6.png" alt="bubble sort"></p>
</description>
<comments>http://blog.seventeams.cn/2017/06/07/notes-of-elementary-sorts-in-algs4/#disqus_thread</comments>
</item>
<item>
<title>参与京东共读的一些感受</title>
<link>http://blog.seventeams.cn/2017/05/07/Something-About-Reading-Together-in-Jd/</link>
<guid>http://blog.seventeams.cn/2017/05/07/Something-About-Reading-Together-in-Jd/</guid>
<pubDate>Sun, 07 May 2017 08:02:13 GMT</pubDate>
<description>
<h1 id="1-活动介绍"><a href="#1-活动介绍" class="headerlink" title="1. 活动介绍"></a>1. 活动介绍</h1><p>京东阅读在微信平台发起的读书活动，微信服务号每天有两篇书的精华内容(早晚各一篇),参与人员必须早晚各签一次到，主要在周内参与，一周一本书,其目的主要是培养读书习惯以及为京东阅读引流</p>
<ul>
<li>参与模式: 赏金模式和普通模式<ul>
<li>普通模式: 邀请三名用户一起参加活动即报名成功</li>
<li>赏金模式: 参与人员叫30元押金，如能坚持一整期，则剩余坚持人员平分所有金额</li>
</ul>
</li>
<li>时间周期<br>一个月为一期,每个月分四周，一周一本书，周一到周五每天2篇书的内容，周六日休息</li>
<li>奖励<ul>
<li>赏金模式：金钱及读书</li>
<li>普通模式：读书</li>
</ul>
</li>
<li>书的选择<br>偏人文,社科类书，而且有大部分成功学书，我的经验是2本热门书(经典书)+2本冷门书(划水的)</li>
<li>关注<strong>京东阅读</strong>即可获取到相关信息，目前已进行到第四期</li></ul>
</description>
<comments>http://blog.seventeams.cn/2017/05/07/Something-About-Reading-Together-in-Jd/#disqus_thread</comments>
</item>
<item>
<title>四月十三日腾讯产品群面暨南京小游</title>
<link>http://blog.seventeams.cn/2017/04/13/gossip-at-Nanjing/</link>
<guid>http://blog.seventeams.cn/2017/04/13/gossip-at-Nanjing/</guid>
<pubDate>Thu, 13 Apr 2017 10:31:55 GMT</pubDate>
<description>
<h1 id="1-腾讯产品群面"><a href="#1-腾讯产品群面" class="headerlink" title="1. 腾讯产品群面"></a>1. 腾讯产品群面</h1><ul>
<li>流水账：4.12收到面试短信，当天下午21点左右高铁到南京，22点左右到旅馆并洗漱完毕，匆匆忙忙修改简历并且大概看了下面试经验和面试题，顺便复习了一下以前看过的书籍和知识，12点左右睡觉。第二天6:30起床，再次看自己之前整理的东西，8点左右退了房，走路去找打印店，顺便吃了个早餐。然后9点到面试现场，并认识了同组的人，聊了一下。10点面试准时开始。</li>
<li>面试过程:签到接待人员是漂亮的姐姐，面试的人是帅哥/手动无耻脸。自我介绍后开始，面试题是一个视频内容相关，最后的讨论结果出来后，我还是云里雾里的，总感觉没有得到一个结果，但对于个人来说还是没有坚持住自己的观点，或者说表达方式不当，除此之外我对题目的理解程度也不深，曾经看过但没有仔细想过这些事情。面试时，有点激进了，随意发表不适合的观点。<blockquote>
<p>面试经验不足，也不知道写什么，面试结束后和研二的学长学姐聊了几句，也学了很多。差距有点大。。。/手动羞愧脸。<br>面试的事情过去了，说说南京经历</p></blockquote></li></ul>
</description>
<comments>http://blog.seventeams.cn/2017/04/13/gossip-at-Nanjing/#disqus_thread</comments>
</item>
<item>
<title>Reading Notes of Are Your Lights On?</title>
<link>http://blog.seventeams.cn/2017/03/31/reading-notes-of-Are-Your-Lights-On/</link>
<guid>http://blog.seventeams.cn/2017/03/31/reading-notes-of-Are-Your-Lights-On/</guid>
<pubDate>Fri, 31 Mar 2017 10:43:55 GMT</pubDate>
<description>
<h1 id="读书感悟"><a href="#读书感悟" class="headerlink" title="读书感悟"></a>读书感悟</h1><h2 id="书的架构及内容"><a href="#书的架构及内容" class="headerlink" title="书的架构及内容"></a>书的架构及内容</h2><ol>
<li>一本小读本：我大概花了2-3天看完。如果集中看的话，3h就可以看完了</li>
<li>书的每个部分采用几个貌似不太相关小故事来说明其观点，有时候会不容易理解。如果为了快速阅读，可以先看下书中的主要观点。遇到看不懂的地方时候，再通过故事来加深理解，辅助自己了解作者的观点。</li>
<li>书有6章节，大概结构:</li>
</ol>
<ul>
<li>问题是什么(找到问题)$=&gt;$谁的问题(谁能解决问题，与谁相关)$=&gt;$解决问题(问题源头，是否真的需要解决问题)。</li>
<li>其中6章节中有3章节说明：“问题是什么”。书中一直强调：<strong>找到问题比解决问题难</strong></li></ul>
</description>
<comments>http://blog.seventeams.cn/2017/03/31/reading-notes-of-Are-Your-Lights-On/#disqus_thread</comments>
</item>
<item>
<title>Flyingstudio之胡言乱语</title>
<link>http://blog.seventeams.cn/2017/03/26/flyingstudio%E4%B9%8B%E8%83%A1%E8%A8%80%E4%B9%B1%E8%AF%AD/</link>
<guid>http://blog.seventeams.cn/2017/03/26/flyingstudio%E4%B9%8B%E8%83%A1%E8%A8%80%E4%B9%B1%E8%AF%AD/</guid>
<pubDate>Sun, 26 Mar 2017 03:01:10 GMT</pubDate>
<description>
<p>seven 写于2017.3.26<br>2016年翔工作室负责人<br>任期的最后一天</p>
<hr>
<h1 id="为什么会选择站长"><a href="#为什么会选择站长" class="headerlink" title="为什么会选择站长"></a>为什么会选择站长</h1><ul>
<li>一个尝试：以前没有做过相关的工作，想挑战下自己。</li>
<li>想以站长的身份来提高影响力来做些事情<blockquote>
<p>最后我想明白，<strong>如果真要做什么事情，不需要任何身份的辅助，主要看你的执行力</strong>。身份应该是你的描述，而不是束缚或限制</p>
</blockquote>
</li>
</ul>
</description>
<comments>http://blog.seventeams.cn/2017/03/26/flyingstudio%E4%B9%8B%E8%83%A1%E8%A8%80%E4%B9%B1%E8%AF%AD/#disqus_thread</comments>
</item>
<item>
<title>2016，2017</title>
<link>http://blog.seventeams.cn/2017/01/03/2017/</link>
<guid>http://blog.seventeams.cn/2017/01/03/2017/</guid>
<pubDate>Tue, 03 Jan 2017 08:13:17 GMT</pubDate>
<description>
<h1 id="2016年总结及2017年展望"><a href="#2016年总结及2017年展望" class="headerlink" title="2016年总结及2017年展望"></a>2016年总结及2017年展望</h1><blockquote>
<p>写份总结反思一年的自己，顺便思考</p>
</blockquote>
<hr>
<table>
<thead>
<tr>
<th>文档建立者</th>
<th>建立时间</th>
<th>最新修改时间</th>
<th>版本号</th>
<th>感觉</th>
</tr>
</thead>
<tbody>
<tr>
<td>Seven</td>
<td>2016.12.21</td>
<td>2016.12.21 13:10</td>
<td>V1.0</td>
<td>Doing</td>
</tr>
<tr>
<td>————</td>
<td>————</td>
<td>2016.12.22 11:05</td>
<td>V1.1</td>
<td>写的是什么</td>
</tr>
<tr>
<td>————</td>
<td>————</td>
<td>2016.12.23 18:33</td>
<td>V1.2</td>
<td>不知道写什么了</td>
</tr>
<tr>
<td>————</td>
<td>————</td>
<td>2016.12.24 9:00</td>
<td>V1.3</td>
<td>接近停滞，</td>
</tr>
<tr>
<td>————</td>
<td>————</td>
<td>2017.1.3 16:20</td>
<td>V2.0</td>
<td>再读感悟</td>
</tr>
</tbody>
</table>
<hr>
<h2 id="个人总结"><a href="#个人总结" class="headerlink" title="个人总结"></a>个人总结</h2><blockquote>
<p>回顾一下自己过去一年做了什么,</p>
</blockquote>
<h3 id="时间轴"><a href="#时间轴" class="headerlink" title="时间轴"></a>时间轴</h3><blockquote>
<p>部分时间已经混乱，但是大致的时间还是没有变的</p>
</blockquote>
</description>
<comments>http://blog.seventeams.cn/2017/01/03/2017/#disqus_thread</comments>
</item>
<item>
<title>Linux下部署开源论坛Nodebb</title>
<link>http://blog.seventeams.cn/2017/01/01/Linux%E4%B8%8B%E9%83%A8%E7%BD%B2%E5%BC%80%E6%BA%90%E8%AE%BA%E5%9D%9BNodebb/</link>
<guid>http://blog.seventeams.cn/2017/01/01/Linux%E4%B8%8B%E9%83%A8%E7%BD%B2%E5%BC%80%E6%BA%90%E8%AE%BA%E5%9D%9BNodebb/</guid>
<pubDate>Sun, 01 Jan 2017 13:57:13 GMT</pubDate>
<description>
<h1 id="工作室内部论坛FlyingForum"><a href="#工作室内部论坛FlyingForum" class="headerlink" title="工作室内部论坛FlyingForum"></a><a href="http://forum.flyingstudio.online/">工作室内部论坛FlyingForum</a></h1><hr>
<h1 id="为什么使用nodebb"><a href="#为什么使用nodebb" class="headerlink" title="为什么使用nodebb"></a>为什么使用nodebb</h1><ol>
<li>工作室需要一个论坛，交流平台作为QQ群的补充，以及需要一个收集反馈的地方等。</li>
<li>之前想使用原来的discuz，通过模板开发之后再重新推广。但开发失败</li>
<li>暑假接触到开源软件的概念，并在自己的服务器上部署了一两个开源服务:Ghost，nodebb等。</li>
<li>nodebb好看以及响应式设计，移动友好性等</li>
</ol>
</description>
<comments>http://blog.seventeams.cn/2017/01/01/Linux%E4%B8%8B%E9%83%A8%E7%BD%B2%E5%BC%80%E6%BA%90%E8%AE%BA%E5%9D%9BNodebb/#disqus_thread</comments>
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<item>
<title>点石成金读书笔记</title>
<link>http://blog.seventeams.cn/2016/12/20/%E7%82%B9%E7%9F%B3%E6%88%90%E9%87%91%E8%AF%BB%E4%B9%A6%E7%AC%94%E8%AE%B0/</link>
<guid>http://blog.seventeams.cn/2016/12/20/%E7%82%B9%E7%9F%B3%E6%88%90%E9%87%91%E8%AF%BB%E4%B9%A6%E7%AC%94%E8%AE%B0/</guid>
<pubDate>Tue, 20 Dec 2016 12:29:31 GMT</pubDate>
<description>
<blockquote>
<p>背景:</p>
<ol>
<li>工作室买了第三版《点石成金》<a href="https://m.douban.com/book/subject/26313852/">点石成金3e 豆瓣链接</a></li>
<li>花了一周时间看了《点石成金》第二版和第三版，回顾一下学到了什么</li>
<li>以前没写过电子档的读书笔记，这是第一次写，所以尝试一下。</li>
</ol>
</blockquote>
<h1 id="书的内容"><a href="#书的内容" class="headerlink" title="书的内容"></a>书的内容</h1><ol>
<li>主要讲了网站的可用性问题: 什么是可用性，如何增强Web的可用性，设计Web时的一些注意事项和方法论<blockquote>
<p>让一个有着能力和经验的人(甚至低于平均水平)能弄明白如何使用它(这说明它是课学习的)去完成某个任务(有效的)，而且不会遇到不必要的麻烦(高效的)</p>
</blockquote>
</li>
</ol>
</description>
<comments>http://blog.seventeams.cn/2016/12/20/%E7%82%B9%E7%9F%B3%E6%88%90%E9%87%91%E8%AF%BB%E4%B9%A6%E7%AC%94%E8%AE%B0/#disqus_thread</comments>
</item>
<item>
<title>杂记2016-11-24</title>
<link>http://blog.seventeams.cn/2016/11/24/%E6%9D%82%E8%AE%B0/</link>
<guid>http://blog.seventeams.cn/2016/11/24/%E6%9D%82%E8%AE%B0/</guid>
<pubDate>Thu, 24 Nov 2016 14:32:14 GMT</pubDate>
<description>
<h1 id="记录近况"><a href="#记录近况" class="headerlink" title="记录近况"></a>记录近况</h1><ul>
<li>断更了，原本准备一天一篇博客<ul>
<li>这几天忙着考试</li>
<li>没有写博客的习惯</li>
<l
</description>
<comments>http://blog.seventeams.cn/2016/11/24/%E6%9D%82%E8%AE%B0/#disqus_thread</comments>
</item>
<item>
<title>编译笔记</title>
<link>http://blog.seventeams.cn/2016/11/21/%E7%BC%96%E8%AF%91%E7%AC%94%E8%AE%B0/</link>
<guid>http://blog.seventeams.cn/2016/11/21/%E7%BC%96%E8%AF%91%E7%AC%94%E8%AE%B0/</guid>
<pubDate>Mon, 21 Nov 2016 15:20:02 GMT</pubDate>
<description>
<h1 id="编译课笔记，个人总结"><a href="#编译课笔记，个人总结" class="headerlink" title="编译课笔记，个人总结"></a>编译课笔记，个人总结</h1><blockquote>
<p>明天哟啊考试了，今天做个总结笔记</p>
</bl
</description>
<comments>http://blog.seventeams.cn/2016/11/21/%E7%BC%96%E8%AF%91%E7%AC%94%E8%AE%B0/#disqus_thread</comments>
</item>
<item>
<title>复习编译</title>
<link>http://blog.seventeams.cn/2016/11/20/%E5%A4%8D%E4%B9%A0%E7%BC%96%E8%AF%91/</link>
<guid>http://blog.seventeams.cn/2016/11/20/%E5%A4%8D%E4%B9%A0%E7%BC%96%E8%AF%91/</guid>
<pubDate>Sun, 20 Nov 2016 12:55:53 GMT</pubDate>
<description>
<h1 id="开始复习编译了"><a href="#开始复习编译了" class="headerlink" title="开始复习编译了"></a>开始复习编译了</h1><p><del>记流水账了</del></p>
<blockquote>
<p>早上8点醒，玩手机到10点，学了不到1h，中午吃完饭后，学了30m，下午14点醒，玩手机到15点，听大神讲课，随意刷ppt1h左右，认真学了1h，吃完晚饭后，再认真学了1h,接着从20点到现在一直在码字，而且期间还花了时间来闲逛。</p>
</blockquote>
</description>
<comments>http://blog.seventeams.cn/2016/11/20/%E5%A4%8D%E4%B9%A0%E7%BC%96%E8%AF%91/#disqus_thread</comments>
</item>
<item>
<title>First Blog</title>
<link>http://blog.seventeams.cn/2016/11/19/Blog/</link>
<guid>http://blog.seventeams.cn/2016/11/19/Blog/</guid>
<pubDate>Sat, 19 Nov 2016 14:37:21 GMT</pubDate>
<description>
<h1 id="2016-11第一篇博客"><a href="#2016-11第一篇博客" class="headerlink" title="2016-11第一篇博客"></a>2016-11第一篇博客</h1><p>从暑假开始部署博客，从当初<a href="http://www.seventeams.cn/">ghost</a>到现在的<a href="http://blog.seventeams.cn/">Hexo</a>都是玩的性质比较多，但是并没有真正去静下心来去写一篇博客，而且写的内容都是无营养的，没有促进自己的进步，也没有发现自己</p>
<p>从今年6月份开始一直到现在，我都没有<strong>静下心来</strong>去学习，去钻研某个东西，很多都是浅尝而止，其实我十分羡慕、渴望匠心。</p>
</description>
<comments>http://blog.seventeams.cn/2016/11/19/Blog/#disqus_thread</comments>
</item>
<item>
<title>暑假期间</title>
<link>http://blog.seventeams.cn/2016/09/01/%E6%9A%91%E5%81%87%E6%9C%9F%E9%97%B4/</link>
<guid>http://blog.seventeams.cn/2016/09/01/%E6%9A%91%E5%81%87%E6%9C%9F%E9%97%B4/</guid>
<pubDate>Thu, 01 Sep 2016 13:15:33 GMT</pubDate>
<description>
<blockquote>
<p>暑假期间流水账，有价值的东西不多</p>
</blockquote>
<h1 id="7-28-7-29-配置Hadoop"><a href="#7-28-7-29-配置Hadoop" class="headerlink" title="7.28-7.29 配置Hadoop"></a>7.28-7.29 配置Hadoop</h1><h2 id="7-28配置Hadoop"><a href="#7-28配置Hadoop" class="headerlink" title="7.28配置Hadoop"></a>7.28配置Hadoop</h2><p>我先在windows下配置Hadoop，然而cygwin不会玩<br>然后转战VM中ubuntu来配置Hadoop，还没弄好，明天继续弄一下<br>配置Hadoop是为了弄Mahout。任重而道远！！</p>
</description>
<comments>http://blog.seventeams.cn/2016/09/01/%E6%9A%91%E5%81%87%E6%9C%9F%E9%97%B4/#disqus_thread</comments>
</item>
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