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<meta name="description" content="选择排序大概的思想就是，每一次循环找出需要排序的部分中最小的那个数，找出只有再将最小的那个数移动到它应该放置的那个位置。因为虽然他的遍历次数也是1+2+3+…+n-1,不过它每次循环只交换一次，总的来说效率还是比直接插入排序好一些。更详细的解释参考百度百科和维基百科。 下面上代码吧： 123456789101112131415161718192021222324252627282930313233">
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<meta property="og:description" content="选择排序大概的思想就是，每一次循环找出需要排序的部分中最小的那个数，找出只有再将最小的那个数移动到它应该放置的那个位置。因为虽然他的遍历次数也是1+2+3+…+n-1,不过它每次循环只交换一次，总的来说效率还是比直接插入排序好一些。更详细的解释参考百度百科和维基百科。 下面上代码吧： 123456789101112131415161718192021222324252627282930313233">
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java实现选择排序
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<div class="post-body" itemprop="articleBody"><p>选择排序大概的思想就是，每一次循环找出需要排序的部分中最小的那个数，找出只有再将最小的那个数移动到它应该放置的那个位置。因为虽然他的遍历次数也是1+2+3+…+n-1,不过它每次循环只交换一次，总的来说效率还是比直接插入排序好一些。更详细的解释参考<a target="_blank" rel="noopener" href="http://baike.baidu.com/view/547263.htm">百度百科</a>和<a target="_blank" rel="noopener" href="http://zh.wikipedia.org/zh/%E9%80%89%E6%8B%A9%E6%8E%92%E5%BA%8F">维基百科</a>。</p>
<p>下面上代码吧：</p>
<figure class="highlight java"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">package</span> com.toozhao.sort;</span><br><span class="line"></span><br><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> *</span></span><br><span class="line"><span class="comment"> * <span class="doctag">@author</span> Junv</span></span><br><span class="line"><span class="comment"> *</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> <span class="title class_">SelectSort</span> &#123;</span><br><span class="line"> <span class="comment">// 定义需要排序的数</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">static</span> <span class="type">int</span>[] array = &#123; <span class="number">10</span>, <span class="number">50</span>, <span class="number">8</span>, <span class="number">29</span>, <span class="number">30</span>, <span class="number">17</span>, <span class="number">12</span>, <span class="number">40</span>, <span class="number">32</span>, <span class="number">7</span>, <span class="number">4</span>, <span class="number">22</span> &#125;;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title function_">main</span><span class="params">(String args[])</span> &#123;</span><br><span class="line"> sort(array);</span><br><span class="line"> <span class="keyword">for</span> (<span class="type">int</span> flag : array) &#123;</span><br><span class="line"> System.out.print(flag + <span class="string">&quot; &quot;</span>);</span><br><span class="line"> &#125;</span><br><span class="line"> &#125;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title function_">sort</span><span class="params">(<span class="type">int</span>[] data)</span> &#123;</span><br><span class="line"> <span class="comment">// 外层循环一次，找到i to (data.length-1)这个数组中最小的一个数。</span></span><br><span class="line"> <span class="keyword">for</span> (<span class="type">int</span> <span class="variable">i</span> <span class="operator">=</span> <span class="number">0</span>; i &lt; (data.length - <span class="number">1</span>); i++) &#123;</span><br><span class="line"> <span class="comment">// temp用来标注值最小的那个数。</span></span><br><span class="line"> <span class="type">int</span> <span class="variable">temp</span> <span class="operator">=</span> i;</span><br><span class="line"> <span class="keyword">for</span> (<span class="type">int</span> <span class="variable">j</span> <span class="operator">=</span> i + <span class="number">1</span>; j &lt; data.length; j++) &#123;</span><br><span class="line"> <span class="comment">// 将temp 始终标记为最小那个数。</span></span><br><span class="line"> <span class="keyword">if</span> (data[j] &lt; data[temp]) &#123;</span><br><span class="line"> temp = j;</span><br><span class="line"> &#125;</span><br><span class="line"> &#125;</span><br><span class="line"> <span class="comment">// 如果i != temp 说明，最小那个数为data[temp],则交换。</span></span><br><span class="line"> <span class="keyword">if</span> (i != temp) &#123;</span><br><span class="line"> <span class="type">int</span> <span class="variable">t</span> <span class="operator">=</span> data[i];</span><br><span class="line"> data[i] = data[temp];</span><br><span class="line"> data[temp] = t;</span><br><span class="line"> &#125;</span><br><span class="line"> &#125;</span><br><span class="line"> &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<p>如需下载完整代码，以及其他排序代码，请到：</p>
<blockquote>
</blockquote>
<figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line"></span><br></pre></td></tr></table></figure>
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