ublic</span> <span class="kd">static</span> <span class="kt">void</span> <span class="nf">main</span><span class="o">(</span><span class="nc">String</span><span class="o">[]</span> <span class="n">args</span><span class="o">)</span> <span class="o">{</span>

        <span class="nc">StringBuffer</span> <span class="n">buf</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">StringBuffer</span><span class="o">();</span>

        <span class="c1">// package and import</span>
        <sp