return ApexPages.getMessages().size() -1;

Iam Using aboveLine in Visualforce Page controller. Please explain About this line

2 Answers 2


ApexPages.getMessages() returns a list of messages associated with the current context. If we specify ApexPages.getMessages().size()-1 it will return the latest entry or the last entry in the list of messages. Thanks.


This will return the count (size) of the messages list and reduced by 1.

(i.e) ApexPages.getMessages() has 2 messages, then

ApexPages.getMessages().size() will return 2 and

this one - ApexPages.getMessages().size() -1; will return 1.

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