Big Java, Binder Ready Version: Early Objects
Big Java, Binder Ready Version: Early Objects
6th Edition
ISBN: 9781119056447
Author: Cay S. Horstmann
Publisher: WILEY
Question
Book Icon
Chapter 12, Problem 3PP
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”.
    • Define the class members.
    • Define a abstract method “read()”.
    • Define a method “check()”.
      • Return the value.
    • Define a method “getText()”.
      • Return the “text”.
    • Define a method “getAnswer()”.
      • Return the “answer”
    • Define a method “setText()”.
      • Set the value of “text”.
    • Define a method “setAnswer()”.
      • Set the value of “answer”.

Filename: “NumberQuestion.java”

This program file is used to define a class “NumberQuestion”. In the code,

  • Import the required packages.
  • Define a class “NumberQuestion” as extending from “Question”.
    • Define the class member “EPSILON”.
    • Define the method “read()”.
      • Get the value of “text”.
      • Get the value of “answer”.
      • Call the method “setText()” to set the value of “text”.
      • Call the method “setAnswer()” to set the value of “answer”.
    • Define the method “check()”.
      • Define a “try” block.
        • Set the answer to “a”.
        • Set the response to “r”.
        • Check whether “Math.abs(a-r)” is less than “EPSILON” and return the Boolean result.
          • Define the “catch” block to catch the exception.
            • Return Boolean value “false”.

Filename: “TextQuestion.java”

This program file is used to define a class “TextQuestion”. In the code,

  • Import the required packages.
  • Define a class “TextQuestion” as extending from “Question”.
    • Define the method “read()”.
      • Get the value of “text”.
      • Get the value of “answer”.
      • Call the method “setText()” to set the value of “text”.
      • Call the method “setAnswer()” to set the value of “answer”.

Filename: “QuestionTester.java”

This program file is used to define a class “QuestionTester”. In the code,

  • Import the required packages.
  • Define a class “QuestionTester”.
    • Define the method “main()”.
      • Define the “try”.
        • Iterate a “while” loop,
          • If the “type” is equal to “T”,
            • Define the object of “Question”.
            • Using the object read the file for input.
            • Call the method “getText()” and print the value.
            • Print the expected question.
            • Call the method “getAnswer()” and print the value.
            • Print the expected answer.
            • Call the method “check()”.
            • Print the expected value.
          • Else if the “type” is equal to “N”.
            • Define the object of “Question”.
            • Using the object read the file for input.
            • Call the method “getText()” and print the value.
            • Print the expected question.
            • Call the method “getAnswer()” and print the value.
            • Print the expected answer.
            • Call the method “check()”.
            • Print the expected value.
          • Else,
            • Print the statement.
      • Define “catch” block.
        • Print the message to user.

Blurred answer
Students have asked these similar questions
Complete the JavaScript function addPixels () to calculate the sum of pixelAmount and the given element's cssProperty value, and return the new "px" value. Ex: If helloElem's width is 150px, then calling addPixels (hello Elem, "width", 50) should return 150px + 50px = "200px". SHOW EXPECTED HTML JavaScript 1 function addPixels (element, cssProperty, pixelAmount) { 2 3 /* Your solution goes here *1 4 } 5 6 const helloElem = document.querySelector("# helloMessage"); 7 const newVal = addPixels (helloElem, "width", 50); 8 helloElem.style.setProperty("width", newVal); [
Solve in MATLAB
Hello please look at the attached picture. I need an detailed explanation of the architecture
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education