BytesWritable的儲存問題

    public static void main(String args[]){          BytesWritable cv = new BytesWritable();          String str1 = "1234567";          String str2 = "123450";          cv.set(str1.getBytes(), 0, str1.getBytes().length);          System.out.println(new String(cv.getBytes()));                        cv.set(str2.getBytes(), 0, str2.getBytes().length);          System.out.println(new String(cv.getBytes()));      }<pre code_snippet_id="340846" snippet_file_name="blog_20140512_1_50663" name="code" class="java">output:  12345671234507</pre><pre code_snippet_id="340846" snippet_file_name="blog_20140512_2_6223415" name="code" class="java">    public static void main(String args[]){          BytesWritable cv = new BytesWritable();          String str1 = "1234567";          String str2 = "123450";          cv.set(str1.getBytes(), 0, str1.getBytes().length);          System.out.println(new String(cv.getBytes()));                        cv.setCapacity(0);                        cv.set(str2.getBytes(), 0, str2.getBytes().length);          System.out.println(new String(cv.getBytes()));      }  output:  1234567123450</pre><br>  <br>  <pre></pre>  <br>

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