The Java list map is converted to a two-dimensional array

/*** * @Title: Listtoarray * @Description: List conversion to a two-dimensional array * @Author: Administrator * @Since: January 7, 2018 Afternoon 2:01:25 *@param: @paramlist *@param: @paramkeylenght number of columns per row, by longest calculation *@param: @return     *@returnobject[][]*/    PrivateObject[][] Listtoarray (list<map<string, object>> List,intkeylenght) {        if(Collectionutils.isempty (list)) {return NewObject[0][]; }        intSize =list.size (); Object[][] Array=NewObject[size][keylenght];  for(inti = 0; i < size; i++) {//Loop through all rowsArray[i] = List.get (i). VALUES (). ToArray ();//number of columns per row        }        returnArray; }

The Java list map is converted to a two-dimensional array