MyLab Programming with Pearson eText -- Access Card -- for Introduction to Java Programming and Data Structures, Comprehensive Version
11th Edition
ISBN: 9780134672816
Author: Liang
Publisher: PEARSON
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Chapter 9, Problem 9.10PE
Program Plan Intro
QuadraticEquation
Program plan:
- Import required packages.
- Define a class “Exercise09_10”
- Declare the main class named “Main”.
- Give the main method “public static void main ()”.
- Prompt the user to get the inputs for the data members.
- Create an object “equation”.
- Print the statement “equation has no roots” if discriminant value is less than 0.
- Print the result if value of discriminant is equal to 0 by calling the method “getRoot1()”.
- Print the results if value of discriminant is greater than or equal to 0 by calling the methods “getRoot1()” and “getRoot2()”.
- Give the main method “public static void main ()”.
- Define a class “QuadraticEquation”
- Declare the data members and parameterized constructor.
- Define a method to get the value of “a”.
- Define a method to get the value of “b”.
- Define a method to get the value of “c”
- Define a method to get the value of discriminant.
- Define methods to get the roots.
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Chapter 9 Solutions
MyLab Programming with Pearson eText -- Access Card -- for Introduction to Java Programming and Data Structures, Comprehensive Version
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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