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setVisibleRowCount doesn't want to

 
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Hi ... when i try to compile the following code snippet

it comes up with the following errors

and i have no idea why cos i reckon i am calling the method properly. any suggestions (eg, i am not calling the method properly ?)
 
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Move this line inside some method
optionHolder.setVisibleRowCount(4);
init() or the constructor of ur class.
Dont use it where u define/initalize variables
 
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