programming代写、Java程序设计调试、代做algorithms、代写Java

日期：2020-09-26 09:06

VHS AP? Computer Science A Summer Assignment

The AP? Computer Science A course focuses on fundamental programming algorithms using the

Java language. This summer assignment has you practicing pre-requisite skills and introduces

new content to help you transition more smoothly during the first week of the course.

Assignment:

Address each of the following, clearly labeling your responses for each portion of every question.

It’s important to express your thoughts in your own words; do not just copy/paste off a website.

In each case, provide an explanation with your work. This assignment is worth 50 points (10

points each).

(1) Explore programming languages:

1. Visit the TIOBE Index (https://www.tiobe.com/tiobe-index/). As of the current date,

what percentage is Java in popularity?

2. Explain how the TIOBE index determines programming language popularity.

3. Which language seems to be increasing in popularity at a fast rate? Explain.

4. Which programming language seems to be dying? Explain.

5. The AP? CS A exam used to be taught in C++ and Pascal. Explain why you think Java

is used as a teaching language as opposed to C++. Support your explanation with

evidence and cite the sources that you used.

(2) Compare programming languages:

1. Do some research to write code that will display “Hello World” to the screen in Java

and two other programming languages.

2. Provide your code and identify the programming language for each; cite your

sources for each example of code.

3. Highlight at least three similarities and three differences that you see between the

three versions of code.

(3) Introduction to programming: algorithms and pseudocode

1. Complete the following TedED lesson: What’s an Algorithm? . Watch the video and

complete the “Think” portion of the lesson.

2. Think of something you do every day. Develop an algorithm to describe that process

step-by-step to someone who would completely unfamiliar with the process. You

must include at least 4 actions, 1 decision, and 1 repeatable action. Make sure to

italicize your actions, bold your decisions, and underline your repeatable actions.

3. Convert your algorithm to pseudocode. Visit the BBC Bitesize: Designing an

Algorithm website to learn more about pseudocode.

(4) Programming: Scratch

1. Visit the MIT Scratch programming site (https://scratch.mit.edu/)

2. Create a program in Scratch that calculates the hypotenuse of a right triangle given two

legs.

3. Capture screenshots of your final code and paste into the word document.

4. Summarize the process that you used to create this program. What were the most

intuitive steps? What were the most difficult challenging aspects? What did you learn

in the process?

(5) Programming: Introduction to Java

1. Go to the CodingBat (https://codingbat.com/java) Java programming site

2. Choose three problems from Warmup-1 (https://codingbat.com/java/Warmup-1) and

solve them. It’s ok to use the solution button!

3. With each solution, you need to comment on each line of the code. Comments are

short notes throughout the code that summarize or explain the intent of the code. For

each line of code, explain what the code is doing.

4. There’s likely a lot of code you don’t understand or may not be able to interpret right

away. Research the keywords such as public, Boolean, int, &&, ||, and !, <=, >=, String

to be able explain what each means in your comments.

5. Cite all sources you used to help you find answers.

How to submit your work:

Create a new document and complete each of the assignments one through five above. Make

sure you complete each portion of every number and clearly label your responses.

Include your name at the top of your document and convert it to a pdf. On the first week of

class, you will be directed to upload this document to the dropbox in your course.