Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Question
Chapter 9, Problem 1PE
Program Plan Intro
Quiz
Program plan:
Filename: “Question.java”
This program file is used to define a class “Question”. In the code,
- Define a class “Question”.
- Declare class variables “text” and “answer”.
- Define a constructor “Question()”.
- Initialize the “text” and “answer”.
- Define a method “setAnswer()”.
- Initialize the value of “answer”.
- Define a method “checkAnswer()”.
- Return the value.
- Define a method “display()”.
- Print the value of “text”.
Filename: “NumericQuestion.java”
This program file is used to define a class “NumericQuestion” as extending from “Question”. In the code,
- Define a class “NumericQuestion”.
- Declare the members of the class.
- Define a constructor “NumericQuestion()”.
- Call the method “super()”.
- Define a method “setAnswer()”.
- Set the value of “answer”.
- Define a method “checkAnswer()”.
- Set the value of “numericResponse”.
- Return the value.
Filename: “QuestionDemo.java”
This program file is used to define a class “QuestionDemo” to test the class “NumericQuestion”. In the code,
- Define a class “QuestionDemo”.
- Define a method “main()”.
- Declare an array of objects.
- Set a question to “quiz[0]”.
- Set the answer to “quiz[0]”.
- Set numeric question to “question”.
- Set the answer for numeric question.
- Set “question” to “quiz[1]”.
- Create an object of “Scanner” class.
- Iterate a “for” loop.
- Call the method “display”.
- Prompt the user to enter the answer.
- Scan for the value.
- Call the method “checkAnswer()” and print the result.
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Chapter 9 Solutions
Big Java Late Objects
Ch. 9.1 - Prob. 1SCCh. 9.1 - Prob. 2SCCh. 9.1 - Prob. 3SCCh. 9.1 - Prob. 4SCCh. 9.1 - Prob. 5SCCh. 9.2 - Prob. 6SCCh. 9.2 - Prob. 7SCCh. 9.2 - Prob. 8SCCh. 9.2 - Prob. 9SCCh. 9.2 - Prob. 10SC
Ch. 9.3 - Prob. 11SCCh. 9.3 - Prob. 12SCCh. 9.3 - Prob. 13SCCh. 9.3 - Prob. 14SCCh. 9.3 - Prob. 15SCCh. 9.4 - Prob. 16SCCh. 9.4 - Prob. 17SCCh. 9.4 - Prob. 18SCCh. 9.4 - Prob. 19SCCh. 9.4 - Prob. 20SCCh. 9.5 - Prob. 21SCCh. 9.5 - Prob. 22SCCh. 9.5 - Prob. 23SCCh. 9.5 - Prob. 24SCCh. 9.5 - Prob. 25SCCh. 9.6 - Prob. 26SCCh. 9.6 - Prob. 27SCCh. 9.6 - Prob. 28SCCh. 9.6 - Prob. 29SCCh. 9.6 - Prob. 30SCCh. 9.6 - Prob. 31SCCh. 9 - Prob. 1RECh. 9 - Prob. 2RECh. 9 - Prob. 3RECh. 9 - Prob. 4RECh. 9 - Prob. 5RECh. 9 - Prob. 6RECh. 9 - Prob. 7RECh. 9 - Prob. 8RECh. 9 - Prob. 9RECh. 9 - Prob. 10RECh. 9 - Prob. 11RECh. 9 - Prob. 12RECh. 9 - Prob. 13RECh. 9 - Prob. 14RECh. 9 - Prob. 15RECh. 9 - Prob. 16RECh. 9 - Prob. 1PECh. 9 - Prob. 2PECh. 9 - Prob. 3PECh. 9 - Prob. 4PECh. 9 - Prob. 7PECh. 9 - Prob. 8PECh. 9 - Prob. 9PECh. 9 - Prob. 10PECh. 9 - Prob. 11PECh. 9 - Prob. 12PECh. 9 - Prob. 13PECh. 9 - Prob. 14PECh. 9 - Prob. 15PECh. 9 - Prob. 16PECh. 9 - Prob. 18PECh. 9 - Prob. 19PECh. 9 - Prob. 20PECh. 9 - Prob. 21PECh. 9 - Prob. 22PECh. 9 - Prob. 23PECh. 9 - Prob. 1PPCh. 9 - Prob. 2PPCh. 9 - Prob. 3PPCh. 9 - Prob. 4PPCh. 9 - Prob. 5PPCh. 9 - Prob. 6PPCh. 9 - Prob. 7PPCh. 9 - Prob. 8PPCh. 9 - Prob. 9PPCh. 9 - Prob. 10PPCh. 9 - Prob. 11PPCh. 9 - Prob. 12PPCh. 9 - Prob. 13PPCh. 9 - Prob. 14PPCh. 9 - Prob. 15PPCh. 9 - Prob. 16PPCh. 9 - Prob. 17PPCh. 9 - Prob. 18PPCh. 9 - Prob. 19PPCh. 9 - Prob. 20PPCh. 9 - Prob. 21PPCh. 9 - Prob. 22PPCh. 9 - Prob. 23PP
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