4) - Protected View Saved to this PC Search ences Mailings Review View Help n contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing 7. What is the result of evaluating the following postfix expression? 3 4 + 2 * 7 1 [1] [2] 2 [3] 14 [4] too few operands [5] None of these is correct. 8. Consider a class that uses the following variables to implement an array-based stack: String [ ] 9 = new String[100]; int top = 0; code syntax/logic for adding an item x to the stack can be written as [1] if (top == s.length) throw new RuntimeException ("Overflow"); else { top ++; s [top] = x; 1 [2] if (top