Write the return data type of the following functions: (i) startsWith() (ii) random()

(i) boolean (ii) double

(i) startsWith() answers whether a string begins with the given text — a yes-or-no question, so boolean. The same holds for endsWith(), equals() and the Character is... methods. (ii) Math.random() returns a double in the range 0.0 up to (but not including) 1.0. To obtain a whole number in a range you scale and cast, as in (int)(Math.random() * 100) for 0 to 99. Return types are asked every year — group the methods by what they answer rather than memorising a list.