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List = criteria.list() How to add 2 lists together?

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janiceileen

Post subject: List = criteria.list() How to add 2 lists together?

Posted: Tue Mar 24, 2009 3:13 am

Newbie

Joined: Tue Mar 10, 2009 10:48 pm
Posts: 18

Hi, I have the following lists.

List result1 = criteria1.list();
List result2 = criteria2.list();

List totalResult = result1.add(result2);

Error:
Type mismatch: cannot convert from boolean to List

How could I add two lists together??

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nordborg

Post subject:

Posted: Tue Mar 24, 2009 4:32 am

Expert

Joined: Wed Mar 03, 2004 6:35 am
Posts: 1240
Location: Lund, Sweden

Code:

result1.addAll(result2);

Now, result1 contains the original result1 plus all entries in result2.

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janiceileen

Post subject:

Posted: Tue Mar 24, 2009 10:15 pm

Newbie

Joined: Tue Mar 10, 2009 10:48 pm
Posts: 18

Thank you for your kind reply.

Even I have changed to
List totalResult = result1.addAll(result2);

It is still giving me the error:
Type mismatch: Cannot convert from boolean to list.

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SIau_Tie

Post subject:

Posted: Wed Mar 25, 2009 1:11 am

Senior

Joined: Wed Sep 19, 2007 9:31 pm
Posts: 191
Location: Khuntien (Indonesia)

janiceileen wrote:

Thank you for your kind reply.

Even I have changed to
List totalResult = result1.addAll(result2);

It is still giving me the error:
Type mismatch: Cannot convert from boolean to list.

Hi,

the return of List.addAll() is boolean.

just result1.addAll(result2).

The result1 will contain all of the results

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