Java Programming Lab 5 and Assignment 03 Instructions Attached For Expert's Reference
CSE110 Principles of Programming Assignment 03::100 pts P.Miller 1 Assignment 03 – Automatic Stock Trader You must work in alone on this assignment. Do not use any Java language features we have not cover so far in this course. Assignment Objectives After completing this assignment the student should be able to: ● Write programs that make decisions ● Demonstrate the use of if statements in Java ● Use relational and logical operators to compute desired values Assignment Requirements For this assignment you are given the following files: Assignment03.java (you must complete this file) Problem Description and Given Info Within the main method in the Assignment03.java file, you must design and write a program to determine whether to buy, sell, or hold shares in a stock market. Your program must prompt the user to enter the 4 input values described below. It must collect the user’s input and store these values in 4 different variables. It must collect the inputs in the order shown below. Your program must determine whether the user should buy, sell, or hold their shares based on the input data. It must print out an appropriate message to the user. The output must be formatted exactly like the Expected output examples shown below. Inputs 1. Current Shares - This is the number of shares of this stock currently held in the account 2. Purchase Price - (per share) paid for current stock in the account 3. Market Price - (per share) of this stock. This is the current market price for buying or selling this stock 4. Available Funds - the amount the client is willing to spend on a transaction Outputs 1. Text containing the message to either buy, sell, or hold (see examples below) Other Details Any transaction (buy or sell) costs $10. Be sure to account for this transaction fee in your profitability calculations. We cannot buy or sell if we cannot pay this $10 fee. Note that this fee can be taken out of the profit from a sell (see below). Each time we sell, it will cost us the $10 transaction fee. Each time we buy, it will cost us the $10 transaction fee, plus the cost of the shares we are buying: ???????????? = 10 + ??????????? ∙ ?????????ℎ????????? The number of shares we can afford to buy would be: ?????????ℎ????????? = ?????( ??????????????−?????????????? ??????????? ) In order for a purchase (buy) to be considered profitable, the current market price (per share) must be lower than the purchase price (per share) paid for current stock in the account. Additionally, the amount the client is willing to spend on a purchase must allow us to buy enough shares so that the difference in value will cover the $10 transaction fee. In other words, if the current market price (per share) is lower than the purchase price (per share) paid for current stock CSE110 Principles of Programming Assignment 03::100 pts P.Miller 2 in the account, then there is a potential per share value that is equal to the price difference: ????ℎ??????????? = ????ℎ???????? − ??????????? Assuming that we have the available funds to buy enough shares (and pay the $10 transaction fee), we should buy if the total value of the shares is greater than the $10 transaction fee. The total value of the shares is the per-share value times the number of shares we can afford to buy: ????????????? = ????ℎ??????????? ∙ ?????????ℎ????????? In order for a sale (sell) to be considered profitable, the current market price (per share) must be higher than the purchase price (per share) paid for current stock in the account. Additionally, the value gained by selling the shares must also cover the $10 transaction fee. In other words, if the current market price (per share) is higher than the purchase price (per share) paid for current stock in the account, then there is a potential per share value that is equal to the price difference: ????ℎ???????????? = ??????????? − ????ℎ???????? In this case, we should see if we have enough shares of this stock so that the total value of the shares is greater than the $10 transaction fee. The total value of the shares is the per-share value times the number of shares we currently have: ?????????????? = ????ℎ???????????? ∙ ????????ℎ???? If neither a buy nor a sell would be profitable, then we should simply hold the existing shares. Test Data Test #1 Given Inputs Current Shares : 10 Purchase Price : 100 Market Price : 1 Available Funds : 10 Expected Output Hold shares Rationale: Even though the current market price is very low (compared to the purchase price), after paying the $10 transaction fee, we would not have any funds left to buy shares; so we can only hold. Test #2 Given Inputs Current Shares : 20 Purchase Price : 2 Market Price : 1 Available Funds : 21 Expected Output Buy 11 shares Rationale: After paying the $10 transaction fee, there are enough funds remaining to buy 11 shares. At a purchase price vs. market price difference of $1 per share, our 11 shares represent a value gain of $11 dollars, which is $1 more than the $10 transaction fee - so we come out $1 ahead. CSE110 Principles of Programming Assignment 03::100 pts P.Miller 3 Test #3 Given Inputs Current Shares : 15 Purchase Price : 12 Market Price : 1 Available Funds : 12 Expected Output Buy 2 shares Rationale: After paying the $10 transaction fee, there are enough funds remaining to buy 2 shares. At a purchase price vs. market price difference of $11 per share, our 2 shares represent a value gain of $22 dollars, which is $12 more than the $10 transaction fee - so we come out $12 ahead. Test #4 Given Inputs Current Shares : 1 Purchase Price : 1 Market Price : 11 Available Funds : 0 Expected Output Hold shares Rationale: Selling our 1 share for $11 will leave us with just $1 after we pay the $10 transaction fee. That is the same as what we paid for it, and we won't make any profit - so we should hold. Test #5 Given Inputs Current Shares : 10 Purchase Price : 1 Market Price : 3 Available Funds : 30 Expected Output Sell 10 shares Rationale: With a market price vs. purchase price vs. difference of $2 per share, we stand to make $20 from the sale of our 10 shares. This is $10 more than the price of the transaction fee, so we will come out $10 ahead - therefore we should sell all 10 shares. Test #6 Given Inputs Current Shares : 1 Purchase Price : 1 Market Price : 12 Available Funds : 0 Expected Output Sell 1 shares Rationale: Our 1 share is worth $11 more than we paid for it at the current market price. The $11 dollars obtained by selling that share now will still leave us with a profit of $1 after paying the $10 transaction fee. Profit is profit, so we should sell. CSE110 Principles of Programming Assignment 03::100 pts P.Miller 4 What to turn in For this assignment you must upload the following files by the due date. Assignment03.java Any assignment submitted less than 24 hours after the posted due date will have 10 points deducted. Any assignment submitted more than 24 hour after the posted due date will receive a zero in the grade book. Grading Rubric Criteria Points All required files are submitted 10 Each file includes a comment header with the following information: CSE 110 :
/ Assignment : Author : & Description : Partial credit can be awarded Code is neat and well organized 10 Good naming conventions for all identifiers Good use of whitespace Descriptive comments Partial credit can be awarded Code compiles with no syntax errors 20 No Partial credit can be awarded No credit will be awarded for structure or logic if your code does not compile Code passes structure tests 30 Code collects 4 inputs Code uses at least 2 if statements Code outputs a results Partial credit can be awarded (10) (10) (10) Code passes logic tests 30 Partial credit is awarded based on number of tests passed No credit will be awarded for logic if your code does not pass all structure tests See test examples (#1 - #6) above in these instructions TOTAL 100 Lab 5 - Functions (Part I) CSE 110 Principles of Programming with Java Spring 2021 Due March 8th 2021, 11:59PM Arizona Time 1 Lab Objectives The following objectives will be met at the end of this lab - • Declare and define variables to store input given by the user • Accept user input using the Scanner class • Use for, while to iterate over source code • Define and use a function to perform a repeated task 1.1 Functions For this lab we will be using a simple function, which is defined by us and then called within the program to carry out its task. A function in JAVA is defined as a block of statements which must be defined and called separately. Please refer to the lecture video and PDF for a more in-depth look at functions. In this lab we will require a boolean function which will compute and indicate if an integer value, passed to it as a parameter, is an odd prime number or not. The function that you will write will return true if the value passed as a parameter to the