Convert between arraylist,string[],string

1, arrarlist conversion to string[]:

ArrayList list = new ArrayList ();

List. ADD ("AAA");

List. ADD ("BBB");

String[] arrstring = (string[]) list. ToArray (typeof (String));

converting ArrayList to a string array, we can use the

[Java]View Plaincopy

1. string[] Array = (string[]) Heightarraylist.toarray ();

Run the datagram type conversion error.

How to resolve:

[Java]View Plaincopy

1. String[] Heightarray = (string[]) Heightarraylist.toarray (new string[0]);

2, string[] convert to Arrarlist:

ArrayList list = new ArrayList (new string[] {"AAA", "BBB"});

3. Convert ArrayList to string:

ArrayList list = new ArrayList ();

List. ADD ("AAA");

List. ADD ("BBB");

String str= string. Join (",", (string[]) list. ToArray (typeof (String)));

4. Convert String to ArrayList:

String str= "1,2,3,4,5";

ArrayList B = new ArrayList (str. Split (', '));

Convert between arraylist,string[],string