There is a much easier way to enter braces. Remember you are doing programming, not writing a letter, so you don't do things the way you would in a
word processor.
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stage 4
If you put both braces in first, then fill in what comes between them afterwards, it is a lot easier to get them paired off. Also use a text editor designed for programming, eg Notepad++ Notepad2 or jEdit. When you tell them you are writing
Java (by using "save as" with a .java extension) they implement bracket highlighting. If you put the mouse on any one of ()[]{} its opposite number changes colour.
Both these tricks make it easier to count brackets and braces, and make that sort of error easier to find.