Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Chapter 13.4, Problem 13.19CP
How do you set the size of a ListView?
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Consider the following database for some store:
Customers (cid, cname, city, discount)Agents (aid, aname, city, percent)Products (pid, pname, city, quantity, price)Orders (ordno, mon, cid, aid, pid, qty, dollars)
The relation Customers records the ID (cid), name (cname), location (city) of each customer and a discount percentage (discount) for this customer.
The relation Agents records the ID (aid), name (aname), location (city) of each agent and a transaction fee (percent) charged by this agent.
The relation Products lists the ID (pid), name (pname), location (city), quantity and price of available products.
And finally, the relation Orders contains a unique order number (ordno), the month (mon), customer (cid), agent (aid), product (pid), quantity (qty) of each order as well as the total value (dollars) of the transaction.
1. Express the following query in SQL
(a) List customers (names) who do not have discounts but purchased at least one product of price greater than $50.
(b) Find…
Consider the following relational schema and briefly answer the questions that follow:
Emp(eid: integer, ename: string, age: integer, salary: real)
Works(eid: integer, did: integer, pct_time: integer)
Dept(did: integer, budget: real, managerid: integer)
a. Define a table constraint on Dept that will ensure that all managers have age > 30.
b. Write SQL statements to delete all information about employees whose salaries exceed that of the manager of one or more departments that they work in. Be sure to ensure that all the relevant integrity constraints are satisfied after your updates.
Consider the following relations:
Student(snum: integer, sname: string, rmajor: string,
level: string, age: integer)
Class(cname: string, meets_at: time, room: string, fid: integer)
Enrolled(snum: integer, cname: string)
Faculty(fid: integer, fname: string, deptid: integer)
The meaning of these relations is straightforward; for example, Enrolled has one record per student-class pair such that the student is enrolled in the class.
2. Express each of the following integrity constraints in SQL unless it is implied by the primary and foreign key constraint; if so, explain how it is implied. If the constraint cannot be expressed in SQL, say so. For each constraint, state what operations (inserts, deletes, and updates on specific relations) must be monitored to enforce the constraint.
(a) Every faculty member must teach at least two courses.
(b) Every student must be enrolled in the course called 'Math101'.
(c) A student cannot add more than two courses at a time…
Chapter 13 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 13.1 - What is the type selector name that corresponds to...Ch. 13.1 - Prob. 13.2CPCh. 13.1 - Prob. 13.3CPCh. 13.1 - Prob. 13.4CPCh. 13.1 - Prob. 13.5CPCh. 13.1 - Prob. 13.6CPCh. 13.1 - Prob. 13.7CPCh. 13.1 - Prob. 13.8CPCh. 13.1 - Prob. 13.9CPCh. 13.1 - Prob. 13.10CP
Ch. 13.1 - Prob. 13.11CPCh. 13.2 - Prob. 13.12CPCh. 13.2 - Prob. 13.13CPCh. 13.2 - Prob. 13.14CPCh. 13.2 - Prob. 13.15CPCh. 13.3 - How do you determine in code whether a CheckBox is...Ch. 13.3 - In code, how do you make a CheckBox appear...Ch. 13.3 - What type of event do CheckBox controls generate...Ch. 13.4 - How do you set the size of a ListView?Ch. 13.4 - Prob. 13.20CPCh. 13.4 - Prob. 13.21CPCh. 13.4 - Prob. 13.22CPCh. 13.4 - How do you set the orientation of a ListView...Ch. 13.5 - Prob. 13.24CPCh. 13.5 - Prob. 13.25CPCh. 13.5 - Prob. 13.26CPCh. 13.5 - Prob. 13.27CPCh. 13.6 - Prob. 13.28CPCh. 13.6 - Prob. 13.29CPCh. 13.6 - Prob. 13.30CPCh. 13.7 - What is the difference between a TextArea and a...Ch. 13.7 - Prob. 13.32CPCh. 13.7 - Prob. 13.33CPCh. 13.7 - Prob. 13.34CPCh. 13.7 - Prob. 13.35CPCh. 13.8 - Briefly describe each of the following menu system...Ch. 13.8 - What class do you use to create a menu bar?Ch. 13.8 - What class do you use to create a menu?Ch. 13.8 - What class do you use to create a menu item?Ch. 13.8 - What class do you use to create a radio menu item?...Ch. 13.8 - How do you create a relationship between radio...Ch. 13.8 - What class do you use to create a check menu item?...Ch. 13.8 - What type of event do menu items generate when...Ch. 13.9 - In what package is the FileChooser class?Ch. 13.9 - Prob. 13.45CPCh. 13.9 - Prob. 13.46CPCh. 13.9 - How do you determine the file that the user...Ch. 13 - When a selector name starts with a period in a...Ch. 13 - Prob. 2MCCh. 13 - Prob. 3MCCh. 13 - Prob. 4MCCh. 13 - Prob. 5MCCh. 13 - In the hexadecimal color value #05AAFF, the AA...Ch. 13 - Prob. 7MCCh. 13 - Prob. 8MCCh. 13 - Prob. 9MCCh. 13 - Prob. 10MCCh. 13 - The __________control presents its items in a...Ch. 13 - Prob. 12MCCh. 13 - A __________ is like a TextField that can accept...Ch. 13 - You use this class to create a menu bar. a....Ch. 13 - Prob. 15MCCh. 13 - True or False: If you make any changes to an...Ch. 13 - Prob. 17TFCh. 13 - Prob. 18TFCh. 13 - Prob. 19TFCh. 13 - Prob. 20TFCh. 13 - Prob. 21TFCh. 13 - Prob. 22TFCh. 13 - True or False: A MenuBar object acts as a...Ch. 13 - True or False: A Menu object cannot contain other...Ch. 13 - Prob. 1FTECh. 13 - .label { -font-size: 14pt; }Ch. 13 - Prob. 3FTECh. 13 - Prob. 4FTECh. 13 - Prob. 1AWCh. 13 - Suppose we have a stylesheet named styles.css, and...Ch. 13 - Prob. 3AWCh. 13 - Prob. 4AWCh. 13 - Prob. 5AWCh. 13 - Prob. 6AWCh. 13 - Prob. 7AWCh. 13 - Prob. 8AWCh. 13 - Prob. 9AWCh. 13 - Assume a JavaFX application has a RadioButton...Ch. 13 - Write code that creates a ListView control named...Ch. 13 - Prob. 12AWCh. 13 - Prob. 13AWCh. 13 - Write the code that creates a menu bar with one...Ch. 13 - Prob. 1SACh. 13 - Prob. 2SACh. 13 - Prob. 3SACh. 13 - Prob. 4SACh. 13 - Prob. 5SACh. 13 - Prob. 6SACh. 13 - Prob. 7SACh. 13 - Prob. 8SACh. 13 - Prob. 9SACh. 13 - Dorm and Meal Plan Calculator A university has the...Ch. 13 - Skateboard Designer The Skate Shop sells the...Ch. 13 - Prob. 3PCCh. 13 - Smartphone Packages Cell Solutions, a cell phone...Ch. 13 - Shopping Cart System Create an application that...
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- Consider the following relational schema. An employee can work in more than one department; the pct_time field of the Works relation shows the percentage of time that a given employee works in a given department. Emp(eid: integer, ename: string, age: integer, salary: real) Works(eid: integer, did: integer, pct_time: integer) Dept(did: integer, budget: real, managerid: integer) Write the following queries in SQL: a. Print the name of each employee whose salary exceeds the budget of all of the departments that he or she works in. b. Find the enames of managers who manage only departments with budgets larger than $1 million, but at least one department with budget less than $5 million.arrow_forwardConsider the following schema: Suppliers(sid: integer, sname: string, address: string) Parts(pid: integer, pname: string, color: string) Catalog(sid: integer, pid: integer, cost: real) The Catalog relation lists the prices charged for parts by suppliers. Write the following queries in SQL: a. Find the sids of suppliers who charge more for some part than the average cost of that part (averaged over all the suppliers who supply that part). b. Find the sids of suppliers who supply a red part or a green part. c. For every supplier that supplies a green part and a red part, print the name and price of the most expensive part that she supplies.arrow_forwardThe following relations keep track of airline flight information: Flights(flno: integer, from: string, to: string, distance: integer, departs: time, arrives: time, price: integer) Aircraft(aid: integer, aname: string, cruisingrange: integer) Certified(eid: integer, aid: integer) Employees(eid: integer, ename: string, salary: integer) Note that the Employees relation describes pilots and other kinds of employees as well; every pilot is certified for some aircraft, and only pilots are certified to fly. Write each of the following queries in SQL.(Additional queries using the same schema are listed in the exercises for Chapter 4) a. Identify the routes that can be piloted by every pilot who makes more than $100,000. b. Print the name and salary of every nonpilot whose salary is more than the average salary for pilots. c. Print the names of employees who are certified only on aircrafts with cruising range longer than 1000 miles and who are certified on some Boeing…arrow_forward
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