StringSet

Write a class StringSet. A StringSet object is given a series of up to 10 String objects. It stores these Strings (or a reference to them, to be precise) and can perform limited calculations on the entire series.

The StringSet class has the following specification:

// an instance variable of type String[] // an int instance variable that indicates the number of String objects that the StringSet currently contains // a single no-argument constructor // a mutator that adds a String newStr to the StringSet object void add(String newStr) 

// an accessor that returns the number of String objects that have been added to this StringSet object int size() // an accessor that returns the total number of characters in all of the Strings that have been added to this StringSet object int numChars() // an accessor that returns the number of Strings in the StringSet object that have exactly len characters int countStrings(int len) Write a class StringSetTester that has a main method. It should ask the user for the number of Strings to add to a StringSet object. Afterward, use StringSet's size and numChars methods to print information about the collection of Strings entered. Also print the number of Strings that are exactly 5 and 7 characters long. Hint: because Scanner's nextInt and nextLine process whitespace differently, you may want to use code similar to the following Scanner kybd = new Scanner(System.in); System.out.print("How many strings will you enter? "); int numStr = kybd.nextInt(); // stops after the number, leaves end of line or other whitespace kybd.nextLine(); // "eats" everything up to and including the next newline // the next kybd.nextLine() will read user input