A.P. Computer Science A Summer Packet

Transcription

1 A.P. Computer Science A Summer Packet Name: Advisory Teacher: AP Computer Science A Summer 2017

2 Dear Student, Computer Science is a growing subject of study, and one that leads to many opportunities in the educational and/or business world today. In this course you will continue to learn the fundamentals of computer science with the focus on Object Oriented Programming (OOP) concepts. Major topics to be discussed this year are: classes, interaction of different classes to solve problems, inheritance, arrays, 2D arrays, array lists, polymorphism, sorting and searching algorithms, and more! This course will prepare you for further study of computer science, and is the first step in preparing for a career in software engineering or information management or genetic engineering or any other field of study you want to pursue. Computer Science has a wide range of application in biology, mathematics, physics, finance, history, social science, and can be combined with any field of study. More than anything else, this course will allow you to develop your logical reasoning and problem solving ability. This course is going to be very quick-paced, in the sense that it builds on your ability to understand and apply logical structures learnt in PAP Computer Science I. In addition to lab time in school, you will need to set up a working environment at home also. This is needed as every person learns at different pace and class time might not be enough to develop and implement solution. In this packet, you will find the assignments (programs) that need to be completed and submitted by the first day of class. You will submit these assignments through Edmodo. Please contact Coach Torres by gatorres@lcisd.org in order to obtain the Edmodo Group Code and files needed to set up your coding work Enviroment. Please keep in mind, AP Computer Science A is not an introductory course. At GRHS, we offer PAP Computer Science I which you should have taken last year. If you have not taken PAP Computer Science I at GRHS, then you should still be able to complete the assignments in this packet without confusion if you are deciding to in fact skip PAP Computer Science I. Again, if you have any questions about the assignment, please feel free to contact me by gatorres@lcisd.org. -Mr. Gabriel Torres

3 Setting up your working environment In order to set up your working environment to complete the assignment, please refer to the Installation PowerPoint slides in Edmodo. To Begin the installation process, go to following link to Install the JDK: Download the jdk file, and follow the steps in the Installation PowerPoint (located in Folders of Edmodo page) in Slides #26 - #32. Next, locate the file Jcrea450 Setup2.exe in the Set up folder in Edmodo. Execute the file, and walk through the process of installing JCreator. Last, to ensure everything is set up, locate the Java02012.java file in the Set up folder, and downlaod Java02012.java. Build, run, and execute the file as shown below.

4 Navigate to wherever you downloaded / saved Java02012.java to. Be sure that the class name matches that of the Java file.

5 --If you have any trouble, please do not hesitate to contact me at or post your question on the Emodo group page. Someone may have had the same question, and the answer may already be posted.

6 Assignments / Labs These Assignments MUST be completed by the 1 st day of school and turned in via Edmodo. Please use the Expo Class methods in order to help code the assignments 1. Create a program that computes the distance an object will fall in Earth s gravity a. Create a Java file called GravityCalculator b. Copy and past the Source code below. public class GravityCalculator public static void main(string[] args) double gravity = -9.81; // Earth's gravity in m/s^2 double initialvelocity = 0.0; double fallingtime = 10.0; double initialposition = 0.0; double finalposition = 0.0; System.out.println("The object's position after " + fallingtime + " seconds is " + finalposition+ " m"); c. Build, Run, and execute. What is the output of the unmodified program? Include this as a comment in the source code of your submission. 2. Modify the above program to compute the position of an object after falling for 10 seconds, outputting the position in meters. The formula in Math notation is: x(t) = 0.5at 2 + v i t + x i, where: a = Acceleration = 9.81 t = Time (in seconds) = 0 v i = Initial Velocity = 0 x i = Initial position = 0

7 3. Write and run a program that displays a table of 20 temperature conversions from Fahrenheit to Celsius. The table should start with a Fahrenheit value of 20 degrees and be incremented in values of 3 degrees. Recall that Celsius = 5.0 (Fahrenheit 32) Write and run a program that calculates and displays the amount of money available in a bank account that has $100 deposited in it and that earns 8% interest per year. Your program should display the amount available at the end of each year for a period of 10 years. Use the relationship that the money available at the end of each year equals the amount of money in the account at the start of the year plus 0.08 times the amount available at the start of the year. 5. A child s parents promised to give the child $10 on her twelfth birthday and double the gift on every subsequent birthday until the gift exceeded $1000. Write a Java program to determine how old the girl will be when the last amount is given, and the total amount she received including the last gift. 6. Write a program to reverse the digits of a positive integer number. The user will must be prompted to enter the number themselves. For example, if the number 6573 is entered, the number displayed should be Write a java program to find the sum of the first 100 terms in the series n (n + 1) Verify that the sum equals n. Determine the value that the sum approaches as n gets n+1 infinitely large (i.e. n ). 8. As a full time student, you took 4 courses last term. Write, run and test a Java program that calculates and displays your grade-point average (GPA) for the term. Your program should prompt the user to enter the grade and credit hours for each course. These should then be displayed with the lower grade first. The grade-point average for the term should be calculated and displayed. A warning message should be printed if the GPA is less than 2.0 and a congratulatory message if the GPA is 3.5 or above.

8 9. Write individual for statements for the following cases a. Use a counter named i that has an initial value of 1, a final value of 20, and an increment of 1. b. Use a counter named count that has an initial value of 1, a final value of 20, and an increment of 2. c. Use a counter named j that has an initial value of 1, a final value of 100 and an increment of 5. d. Use a counter named count that has an initial value of 20, a final value of 1, and an increment of -1. e. Use a counter named count that has an initial value of 20, a final value of 1 and an increment of -2. f. Use a counter named xcnt that has an initial value of 20.0, a final value of 9.5 and an increment of Determine the number of times each for loop is executed for the for statements written in question Determine the value in total after each of the following loops is executed: a. int total = 0; for(int i=1; i<=10; i = i+1) total = total+1; b. int total = 1; for(int count =1; count <=10; count = count+1) total = total*2; c. int total =0; for(int i=10; i<=15; i = i+1) total = total+i;

9 d. int total = 50; for(int i=1; i<=10; i = i+1) total = total+i; e. int total = 1; for(int icnt = 1; icnt <=8; ++icnt) total = total*icnt; Resources: 1) Edmodo How to instructions on setting up working Environment and Review text. 2) Edmodo Expo.class and Expo.html help file to use methods of the Expo Class to complete the assignments. 3) Java Tutorials - 4) Java Tutorials by Oracle -