Reference no: EM1317340
2. Before we developed a StringLog ADT. It represents a "log" that holds objects of class String. Suppose that instead of restricting ourselves to strings, we decided to create a "log" that holds objects of type Object. Describe the changes you would have to make to each of the following classes to implement such a change.
a. Change StringLogInterface to ObjectLogInterface
b. Change ArrayStringLog to ArrayObjectLog
c. Change ITDArrayStringLog to ITDArrayObjectLog
d. Change LLStringNode to LLObjectNode
e. Change LinkedStringLog to LinkedObjectLog
2. Write a class Array that encapsulates an array and provides bounds-checked access. The private instance variables should be int index and inarray[10]. The public members should be a default constructor and methods (signatures shown below) to provide read and write access to the array.
void insert(int location, int value);
void retrieve(int location);
If the location is within the correct range for the array, the insert method should set that location of the array to the value. Likewise, if the location is within the correct range for the array, the retrieve method should return the value at that location--the approach taken by the library before Java 5.0. In either case, if location is not within the correct range, the method should throw an exception of class ArrayOutOfBoundsException. Write an application that helps you test your implementation. Your application should assign values to the array by using the insert method, then use the retrieve method to read these values back from the array. It should also try calling both methods with illegal location values. Catch any exceptions thrown by placing the "illegal" calls in a try block with an appropriate catch. Share your code with classmates and compare and discuss the various implementations.
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