Since text2 is not sorted in numeric order, we could sort it and then join would join the two lines that have a matching join field (the field with value 3 in this case).
由于text2并不是按数值排序的，因此可以对它进行排序并使用join命令将具有匹配的join字段(在本例中指值为3的字段)的两行连接起来。
Depending on the sort order that you need, the code that you write for this bean specifies whether that column should be sorted in ascending or descending order or not sorted.
对于您所需要的排序顺序，您为这个bean所编写的代码要么可以以升序或降序的方式排序，要么不能排序。
If it is not sorted, the results are undefined.
如果没有排序，结果是不确定的。
If it is not sorted, the results are undefined.
如果没有排序，结果是不确定的。
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