This assignment demonstrates your understanding of the String, StringBuffer

Homework 4

This assignment demonstrates your understanding of the String, StringBuffer, StringBuilder classes, along with classes in the java.time package and the use of command line arguments. This homework consists of 2 programming assignments worth 25 points each.

Before attempting this project, be sure you have completed all of the reading assignments, hands-on labs, discussions, and assignments to date.  

1. (25 points) Write a Java program the displays the State bird and flower. The program should

prompt the user to enter a State and print both the State bird and flower. The user should be

able to enter a State without worrying about case. (e.g. Users could enter Maryland, maryland,

MARYLAND or any other possible combination of lower and upper case characters. States may

also contain leading and trailing white spaces.  Hint: Store the State information in a multidimensional array.

The program should continue to prompt the user to enter a state until “None” is entered.

You will need to do some research to find the State birds and flowers.

Here is a sample run:

Enter a State or None to exit:

Maryland

Bird: Baltimore Oriole

Flower: Black-eyed Susan

Enter a State or None to exit:

Delaware

Bird: Blue Hen Chicken

Flower: Peach Blossom

Enter a State or None to exit:

None

2. (25 points) Design a class named Clock. The class contains private data fields for startTime and stopTime, a no argument constructor that initializes the startTime to the current time, a method named start() that resets the startTime to the given time, a stop() method that sets the endTime to the given time and a getElapsedTime() method that returns the elapsed time in seconds.

Create a TestClock class to construct a Clock instance and return the elapsed time. Command

line arguments should be used to send the start and end times. You should use the java.time

classes. Here is sample run:

java TestClock 11:45:12 11:48:13

Elapsed time in seconds is: 181