Illegal Start of Expression

I am having problems with this part of the code and I was wondering if any one knew what the problem was

public void MouseExited( MouseEvent event );

The error message that i am getting is Illegal Start of Expression

That's a method. You don't need the semicolon at the end. Plus mouse should be lower case:

Code:

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public void mouseExited( MouseEvent event )
{
}

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