Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 9.2PE
(The Stock class) Following the example of the Circle class in Section 9.2, design a class named Stock that contains:
- A string data field named symbol for the stock’s symbol.
- A string data field named name for the stock’s name.
- A double data field named previousClosingPrice that stores the stock price for the previous day.
- A double data field named currentPrice that stores the stock price for the current time.
- A constructor that creates a stock with the specified symbol and name.
- A method named getChangePercent () that returns the percentage changed from previousClosingPrice to currentPrice.
Draw the UML diagram for the class then implement the class. Write a test
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A private float data field named currentPrice that stores the stock price for the current time.
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Complete the FoodItem class by adding a constructor to initialize a food item. The constructor should initialize the name (a string) to "None" and all other instance attributes to 0.0 by default. If the constructor is called with a food name, grams of fat, grams of carbohydrates, and grams of protein, the constructor should assign each instance attribute with the appropriate parameter value.
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Chapter 9 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 9.3 - Prob. 9.3.1CPCh. 9.3 - How do you define a class?Ch. 9.3 - How do you declare an objects reference variable?Ch. 9.3 - How do you create an object?Ch. 9.4 - Prob. 9.4.5CPCh. 9.4 - When will a class have a default constructor?Ch. 9.5 - Which operator is used to access a data field or...Ch. 9.5 - What is an anonymous object?Ch. 9.5 - Prob. 9.5.3CPCh. 9.5 - Is an array an object or a primitive-type value?...
Ch. 9.5 - Prob. 9.5.5CPCh. 9.5 - What is wrong in the following code? 1. class Test...Ch. 9.5 - Prob. 9.5.7CPCh. 9.6 - Prob. 9.6.1CPCh. 9.6 - Prob. 9.6.2CPCh. 9.6 - Which packages contain the classes Date, Random,...Ch. 9.7 - Suppose the class F is defined in (a). Let f be an...Ch. 9.7 - Prob. 9.7.2CPCh. 9.7 - Can you invoke an instance method or reference an...Ch. 9.9 - Prob. 9.9.1CPCh. 9.9 - Prob. 9.9.2CPCh. 9.9 - In the following code, radius is private in the...Ch. 9.10 - Prob. 9.10.1CPCh. 9.10 - Show the output of the following program: public...Ch. 9.10 - Show the output of the following code:Ch. 9.10 - Prob. 9.10.4CPCh. 9.11 - What is wrong in the following code? 1public class...Ch. 9.12 - If a class contains only private data fields and...Ch. 9.12 - If all the data fields in a class are private and...Ch. 9.12 - Is the following class immutable? public class A {...Ch. 9.13 - What is the output of the following program?...Ch. 9.14 - Prob. 9.14.2CPCh. 9.14 - Prob. 9.14.3CPCh. 9 - (The Rectangle class) Following the example of the...Ch. 9 - (The Stock class) Following the example of the...Ch. 9 - (Use the Date class) Write a program that creates...Ch. 9 - Prob. 9.4PECh. 9 - (Use the GregorianCa1endar class) Java API has the...Ch. 9 - (Stopwatch) Design a class named StopWatch. The...Ch. 9 - (The Account class) Design a class named Account...Ch. 9 - (The Fan class) Design a class named Fan to...Ch. 9 - (Geometry: n-sided regular polygon) In an n-sided...Ch. 9 - Prob. 9.10PECh. 9 - (Algebra: 2 2linear equations) Design a class...Ch. 9 - (Geometry: intersecting point) Suppose two line...Ch. 9 - (The Location class) Design a class named Location...
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