Provide answers to the following Questions: a) What can you do to change the content of a String? b) What is the difference between StringBuilder and String? c) Which of the following classes are Immutable: Integer, Short, Byte, String, Boolean, Float, Character, BigInteger, StringBuilder, StringBuffer? d) Can you sort an array of Strings, Dates, and Integers using the same method? If so, provide an example. (Hint: java.util.Arrays.sort() method)

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Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.