Description

This lab will give you practice writing loops.

Part 1

On the course webpage, you will find BasketballScores.java. Copy and paste the program into a new Java file in jGRASP, and edit the Program Header to reflect your name and assignment information. You must add to the program the capability to read in a list of UNC basketball scores (non-negative integers!) one at a time from the user and output the following statistics:

• 1. Total number of games
• 2. Total number of games scoring at least 90 points
• 3. Percentage of games scoring at least 90 points
• 4. Average game score
• 5. Range of scores: lowest and highest

The end of the input is indicated by the user entering a negative sentinel value. Note that the sentinel value is NOT used in computing any of the statistics. Output messages have been provided for you in the program as given.

Suggestions for starting the assignment:

• Write pseudocode for how you would solve each statistic
• Example: total number of games
• for each input score, increment games by one
• Determine the variables you will need as well as the type of each variable
• Define and initialize each variable
• Determine what type of loop you are going to write
• Start with statistic number one (total number of games) and get your loop to compute the total number of games. When you end your loop output the total number of games. Make sure this works and then move on to the rest of the statistics one at a time, testing that each one of them works properly.
• You only need to write ONE loop

Part 2

On the course webpage, you will find Triangle.java. Copy and paste the program into a new Java file in jGRASP, and edit the Program Header to reflect your name and assignment information. The program as given asks the user to enter the size of a triangle as an integer from 1-10. You must add to the program where indicated by the comment //YOUR CODE HERE the ability to display a triangle of the size indicated by the user. The directions for displaying the triangle follow.

From your text, Savitch & Carrano, "Java: An Introduction to Problem Solving and Programming", 5th edition.

"Display the triangle by writing lines of asterisks. The first line will have one asterisk, the next two, and so on, with each line having one more asterisk than the previous up to the number entered by the user. On the next line write one fewer asterisk and continue by decreasing the number of asterisks by 1 for each successive line until only asterisk is displayed. For example, if the user enters 3, the output would be"

*
**
***
**
*

HINT: Use nested for loops, where the outer loop controls the number of asterisks to draw on the current line and the inner loop draws the asterisks.

Submission

For this assignment you will need to create a Jar file that contains the source code for BasketballScores.java AND Triangle.java that you edited as part of this assignment. Follow these instructions for creating a Jar file.
The Jar file you submit must be named yourlastname_lab4.jar, where yourlastname is your last name

Submit yourlastname_lab4.jar via the UNC Blackboard System under "Assignments → Lab 4" before the deadline.

Grading

• 12 points Part 1
• 8 points Part 2
• 3 points Jar file submitted and named correctly
• 2 points Program Headers edited correctly