Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Task Class Requirements
- The task object shall have a required unique task ID String that cannot be longer than 10 characters. The task ID shall not be null and shall not be updatable.
- The task object shall have a required name String field that cannot be longer than 20 characters. The name field shall not be null.
- The task object shall have a required description String field that cannot be longer than 50 characters. The description field shall not be null.
Task Class with JUnit test case with it!
Please do not copy and paste from others with TaskService. It's not helpful and does not relate to what I am doing. Thank you.
Java language
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- A design class must be fully specified: Which is correct? A. all attributes must be complete B. all operations must be complete C. all attributes and operations (including return types and parameter lists) D. must be complete D. None of thesearrow_forwardPortfolio Instructions: You are working for a financial advisor who creates portfolios of financial securities for his clients. A portfolio is a conglomeration of various financial assets, such as stocks and bonds, that together create a balanced collection of investments. When the financial advisor makes a purchase of securities on behalf of a client, a single transaction can include multiple shares of stock or multiple bonds. It is your job to create an object-oriented application that will allow the financial advisor to maintain the portfolios for his/her clients. You will need to create several classes to maintain this information: Security, Stock, Bond, Portfolio, and Date. The characteristics of stocks and bonds in a portfolio are shown below: Stocks: Bonds: Purchase date (Date) Purchase date (Date) Purchase price (double)…arrow_forwardPlease written by computer source Unit 4 - Lab – Individual Retirement Account Calculation Assignment An Individual Retirement Account (IRA) is a special bank / brokerage account that a person can use to save money for retirement. An individual can put up to $5,500 per year tax free and the money grows tax free until the person is ready to retire. The tax rules related to IRA’s are complex, but for this assignment, we’ll assume that the person puts in the same amount of money every year (up to $5,500) and the money grows at a constant interest rate. Write a Flowgorithm program that asks the user to input an annual IRA contribution (in dollars), and interest rate (percent), and a time period (years). Calculate the value of the IRA every year for the duration of the time period provided by the user. Be sure and provide user friendly prompts. Include a comment at the beginning of the program with your name, date, and a short description of the program.arrow_forward
- Task Class Requirements The task object shall have a required unique task ID String that cannot be longer than 10 characters. The task ID shall not be null and shall not be updatable. The task object shall have a required name String field that cannot be longer than 20 characters. The name field shall not be null. The task object shall have a required description String field that cannot be longer than 50 characters. The description field shall not be null. Verify with Juint testing as wellarrow_forwardDouble Bubble For this exercise you need to create a Bubble class and construct two instances of the Bubble object. You will then take the two Bubble objects and combine them to create a new, larger combined Bubble object. This will be done using functions that take in these Bubble objects as parameters. The Bubble class contains one data member, radius_, and the corresponding accessor and mutator methods for radius_, GetRadius and SetRadius. Create a member function called CalculateVolume that computes for the volume of a bubble (sphere). Use the value 3.1415 for PI. Your main function has some skeleton code that asks the user for the radius of two bubbles. You will use this to create the two Bubble objects. You will create a CombineBubbles function that receives two references (two Bubble objects) and returns a Bubble object. Combining bubbles simply means creating a new Bubble object whose radius is the sum of the two Bubble objects' radii. Take note that the CombineBubbles function…arrow_forwardData may be stored in the attributes field of objects. The class's characteristics are the class's own.?arrow_forward
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