logo
down
shadow

I can't figure out why this code in my APCS multiple choice book returns 19


I can't figure out why this code in my APCS multiple choice book returns 19

Content Index :

I can't figure out why this code in my APCS multiple choice book returns 19
Tag : java , By : rhinojosa
Date : November 28 2020, 04:01 AM

I think the issue was by ths following , So here is the method and the question:
Math.sqrt(double a);
(Any Double) / (Any Integer)
(Any Double) / (Any Double)
Math.sqrt(21) == 4.58257569496;
21 / 4 == 5;
Math.sqrt(21) < 21 / 4;

//(Then it returns Mystery(n-1))
Math.sqrt(20) == 4.472135955;
20 / 4 == 5;
Math.sqrt(20) < 20 / 4;

//Then it returns Mystery(n-1)
Math.sqrt(19) == 4.35889894354;
19 / 4 == 4;
Math.sqrt(19) > 19 / 4;

returns 19;
Math.sqrt(19) == 4.35889894354.
19 / 4 == 4 
//It would be 4.75, **but** java rounds down to the nearest Integer, but it ALWAYS rounds down.
//To stop this, the condition Math.sqrt(n) > n/4;
//Would become                Math.sqrt(n) > n/4.0;

Comments
No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

Write a query to display the book code, book title ,supplier name and price of the book which takes maximum price based


Tag : mysql , By : Sinisa Ruzin
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Write a query to display the book code, book title ,supplier name and price of the book which takes maximum price based on each supplier. , The first step is to get the maximum price per supplier:
SELECT  supplier_id, MAX(Price) AS Price
FROM    lms_book_details
GROUP BY supplier_id
SELECT  bd.book_code,
        bd.book_title,
        sd.supplier_name,
        bd.price
FROM    lms_book_details AS bd
        JOIN lms_suppliers_details AS sd 
            ON sd.supplier_id = bd.supplier_id;
SELECT  bd.book_code,
        bd.book_title,
        sd.supplier_name,
        bd.price
FROM    lms_book_details AS bd
        JOIN lms_suppliers_details AS sd 
            ON sd.supplier_id = bd.supplier_id
        JOIN
        (   SELECT  supplier_id, MAX(Price) AS Price
            FROM    lms_book_details
            GROUP BY supplier_id
        ) AS MaxPrice
            ON MaxPrice.supplier_id = bd.supplier_id
            AND MaxPrice.Price = bd.Price;
BOOK_CODE   BOOK_TITLE                  SUPPLIER_NAME       PRICE
BL0000002   Java The compete reference  ROSE BOOK STORE     750
BL0000006   Java The compete reference  ROSE BOOK STORE     750
BL0000004   Java The compete reference  SINGAPORE SHOPPEE   750
BL0000009   Fire                        KAVARI STORE        999

I need to find the book code and book title for each book found in branch number 2 and written by author 20


Tag : mysql , By : Eric
Date : March 29 2020, 07:55 AM
this one helps. want to find the book code and book title for each book found in branch number 2 and written by author 20. , You can use simple join between the tables.
SELECT B.BOOK_CODE, B.TITLE
FROM BOOK B
JOIN WROTE W
ON W.BOOK_CODE = B.BOOK_CODE
AND W.AUTHOR_NUM ='20'
JOIN INVENTORY I
on I.BOOK_CODE = B.BOOK_CODE
AND I.BRANCH_NUM ='2'

I'm making a multiple choice quiz and can't figure out how to use loop to get Murillo answers from user before program e


Tag : python , By : Amit Battan
Date : March 29 2020, 07:55 AM
With these it helps More detail: program gives 3 answers and user has to pick one answer either you get it right and move on or wrong and you have to choose again. That's what I'm looking for after guessing/choosing wrong I wanna be able to choose again without program ending or giving me an error? , This might help you
while(True):
    print "Enter Choice"
    print "1).Correct"
    print "2).Incorrect"
    print "3).Incorrect"
    choice = raw_input()
    if(choice == '1'):
        print "That's Correct"
        break
    else:
        print "Please Try Again"

Cant figure how to assign proper values of answers from a List<String> at a multiple choice quiz at flutter,


Tag : dart , By : user143038
Date : March 29 2020, 07:55 AM
around this issue At listAnswers[1] i did try to assign the string 'white' at the text view but it crashes my program, anyone have any idea why, here is the Class questions which contains a string question, list with answers and a string with correct answer to evaluate, and a quiz class to build the quiz. , Try this.
import 'package:flutter/material.dart';

void main() => runApp(new MaterialApp(
      home: new MainPage(),
      debugShowCheckedModeBanner: false,
    ));

class MainPage extends StatefulWidget {
  @override
  _MainPageState createState() => new _MainPageState();
}

class _MainPageState extends State<MainPage> {
  Questions currentQuestion;

  Quiz quiz = new Quiz([
    new Questions(
        "Color of the snow is ", ["yellow", "white", "grey"], "white"),
  ]);
  String questionText;
  int questionNumber;
  String isCorrect;
  List<String> listAnswers;

  @override
  void initState() {
    super.initState();
    currentQuestion = quiz.nextQuestion;
    questionText = currentQuestion.question;
    questionNumber = quiz.questionNumber;
    listAnswers = quiz.answers;
    isCorrect = quiz.correctAnswer;
  }

  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      appBar: new AppBar(
        title: new Text('Quiz'),
      ),
      body: new InkWell(
        child: Center(
          child: new Column(
            children: <Widget>[
              Padding(
                padding: const EdgeInsets.all(8.0),
                child: new Text(
                  questionText,
                  maxLines: questionNumber,
                  style: new TextStyle(fontSize: 20.0),
                ),
              ),
              Padding(
                padding: const EdgeInsets.all(8.0),
                child: buildAnswerButtons(0),
              ),
              Padding(
                padding: const EdgeInsets.all(8.0),
                child: new Text(
                  quiz._questions[0].correctAnswer,
                  style: new TextStyle(fontSize: 20.0),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }

  Widget buildAnswerButtons(int questionPos) {
    List<Widget> buttons = [];
    for (String answer in quiz._questions[questionPos].answers) {
      buttons.add(
        new RaisedButton(
          child: new Text(answer),
          onPressed: () {},
        ),
      );
    }
    return new Row(
      mainAxisSize: MainAxisSize.min,
      children: buttons,
    );
  }
}

class Quiz {
  List<Questions> _questions;
  int _currentQuestionIndex = -1;
  int _point = 0;
  List<String> _answers;
  String _correctAnswer;

  Quiz(this._questions) {
    _questions.shuffle();
  }

  List<Questions> get questions => _questions;

  List get answers => _answers;

  String get correctAnswer => _correctAnswer;

  int get length => _questions.length;

  int get questionNumber => _currentQuestionIndex + 1;

  int get point => _point;

  Questions get nextQuestion {
    _currentQuestionIndex++;
    if (_currentQuestionIndex >= length) return null;
    return _questions[_currentQuestionIndex];
  }
}

class Questions {
  final String question;
  final List<String> answers;
  final String correctAnswer;

  Questions(this.question, this.answers, this.correctAnswer);
}

Trying to figure out code snippet in the book Eloquent JavaScript


Tag : javascript , By : afds
Date : March 29 2020, 07:55 AM
like below fixes the issue In the first line, you're declaring a variable result. However, it's being declared with let, not var. Let is similar to var, except it can't be accessed outside the block it is defined in (including functions, loops and conditional statements). And since it's in a function here, that first line is equivalent to:
var result = 1;
for (let count = 0; count < exponent; count++) {}
result *= base;
result = result * base;
return result;
console.log(power(2, 10));
Related Posts Related QUESTIONS :
  • Escape Unicode Character 'POPCORN' to HTML Entity
  • An empty JSON field which is a boolean/nullable field in Java model, is getting converted as null
  • Mongo java driver cannot find public constructor for interface
  • How to unit test writing a file to AWS Lambda output stream?
  • How to make a GitHub GraphQL API Call from Java
  • What's the difference between @ComponentScan and @Bean in a context configuration?
  • Expected class or package adding a view using a class
  • can be delete of a element in a static array be O(1)?
  • Instance variable heap or stack ? ( with specific example)
  • Assert progress of ProgressBar in Espresso test
  • How to detect if gson.fromjson() has excess elements
  • I cant generate the proper code to select the a specific filter on a BI dashboard I am working on
  • How to Inject Dependencies into a Servlet Filter with Spring Boot Filter Registration Bean?
  • Thrift types as a Generic
  • Effective algorithm to random 4 unique integers less than a big max such as 100_000
  • Combining or and negation in Java regex?
  • Unable to instantiate default tuplizer Exception
  • Multi-tenant migration to work with quarkus
  • Ignite persisting a Set: Cannot find metadata for object with compact footer
  • Maven cannot resolve Jacob dependency using eclipse
  • testcontainers oracle database container starts before database user is created
  • Launching two spring boot apps in integration test
  • Is there a way to add a HashMap's value that is a integer array into a ArrayList?
  • Is there any way that I can get a parameter in paintComponent?
  • Empty stack with one recursive method and one iterative method
  • What's the behavior of onBackpressureBuffer in RxJava2
  • Java regex can only use 1 quantifier in a lookback (need 2)
  • How to fix error in native query : it is showing syntax error near or at
  • How to retrieve nested object from a document and display it in FirestoreRecyclerOptions?
  • Why not use ListIterator for full LinkedList Operation?
  • Android Webview EvaluateJavascript sometimes does not return a response
  • Matcher java doesn't work but regex seems to be good
  • Finding dimensions of a .gif file
  • Java Number format how to change +/- sign to custom text
  • Entity partially saved when using JOINED inheritance strategy and setting spring.jpa.properties.hibernate.jdbc.batch_siz
  • Stored Procedure in Java Spring Boot Project returns null as Output
  • How to solve org.hibernate.MappingException which is causing due to inheriting a class
  • Clean Archtecture. Understanding of scheme
  • Processing 3 triangle not showing in Javafx 8 Window tab
  • How to specify a sequence-based generated value in Hibernate 5 via legacy mapping
  • Spring-boot application not getting auto-deployed on startup
  • How to only pass strings that the user select
  • Is there a way to SELECT using "GREATEST(field1, field2)" where field1 and field2 are aggregate sums in the sa
  • How to handle JSON objects wrapped into one JSON object with retrofit2?
  • Configure Hazelcast CPSubsystem Retries Timeout
  • how to use onBindViewHolder with multiple items in android RecyclerView
  • No ParameterResolver registered for parameter in BeforeAll method
  • Finding the path in a graph with the least casualties according to the lanchester square law
  • MongoWriteException when inserting into Mongodb with composite custom _id
  • Fetch Oracle procedure metadata with Java when multiple procedure signatures
  • Value modification of key-pair in HashMap and impact for a HashCode
  • Migration from solrj to spring-data-solr
  • How to check if you're still connected to the database with jpa
  • Use Date type in the graphql scheme
  • Split and add the string based on length
  • Is "main" method of spring boot application required when deploy as war
  • Getting the average within specific numbers in an array
  • how to use izpack to make my jar application to installer?
  • What is meant by src in Java Eclipse?
  • Create a mirrored linked list in Java
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com