Android Open Source - android-quiz-php Question

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License

The source code is released under:

Copyright (c) 2014, Fabricio Bedeschi All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are me...

Java Source Code

package com.quiz.php.core;
/*w w w .  j a  v  a  2  s .  co  m*/
import android.util.Log;

import java.util.ArrayList;

/**
 * Created by fabricio on 1/29/14.
 */
public class Question {

    private int id;

    /**
     * Type of question
     * 1 - single-choice
     * 2 - text
     * 3 - multi-choices
     */
    private int type;

    private String question;
    private String answer;
    private String inputAnswer;

    private Category category;
    private ArrayList<Alternative> alternatives;
    private boolean isAnswered;

    @Override
    public String toString() {

        return String.format("\n Question: %s \n Is correct: %s \n Type: %s \n isAnswered: %s" ,
                getId(), isCorrect(), type, isAnswered);
    }

    public boolean isAnswered() {
        return isAnswered;
    }
    public void setAnswered(boolean isAnswered) {
        this.isAnswered = isAnswered;
    }

    public void setQuestion(String question) {
        this.question = question;
    }

    public String getQuestion() {
        return question;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public ArrayList<Alternative> getAlternatives() {
        return alternatives;
    }

    public void setAlternatives(ArrayList<Alternative> alternatives) {
        this.alternatives = alternatives;
    }
    public Category getCategory() {
        return category;
    }

    public void setCategory(Category category) {
        this.category = category;
    }

    private String filterAnswer(String answer){

        String s = "";
        if (answer != null) {
            if (answer.startsWith("_")) {
                return answer;
            }
            s =  answer.substring(0, answer.indexOf("(") + 1).toLowerCase();
        }

        return s;
    }

    public boolean isCorrect() {
        switch (type) {

            case 1: //single choice
                for (Alternative a : alternatives) {
                    if (a.isSelected() && a.isCorrect() ) {
                        return  true;
                    }
                }
                break;

            case 2: //text
                String input = filterAnswer(getInputAnswer());

                Log.d("answer", String.format("Answer %s - %s", input, filterAnswer(getAnswer())));
                if (!input.isEmpty()  && filterAnswer(getAnswer()).equals(input)){
                    return true;
                }
                break;

            case 3: //multi
                int corrects = 0;
                for (Alternative a : alternatives) {
                    if (a.isSelected() && a.isCorrect()) {
                        corrects += 1;
                    }
                }
                return corrects == getNumOfCorrectOptions();
        }
        return false;
    }

    /**
     * Return number of correct options, for multi choice questions
     * @return int
     */
    public int getNumOfCorrectOptions() {
        int corrects = 0;
        for (Alternative a : alternatives) {
            if (a.isCorrect() ) {
                corrects += 1;
            }
        }
        return corrects;
    }

    /**
     * Return number of selected questions
     * @return int
     */
    public int getNumOfChecked() {
        int answered = 0;
        for (Alternative a : alternatives){
            if (a.isSelected()) {
                answered += 1;
            }
        }
        return  answered;
    }

    public int getRemaining(){
        int remaining = getNumOfCorrectOptions() - getNumOfChecked();

        return remaining > 0 ? remaining : 0;
    }

    public String getAnswer() {
        return answer;
    }

    public void setAnswer(String answer) {
        this.answer = answer;
    }

    public int getType() {
        return type;
    }

    public void setType(int type) {
        this.type = type;
    }

    public String getInputAnswer() {
        return inputAnswer;
    }

    public void setInputAnswer(String inputAnswer) {
        this.inputAnswer = inputAnswer;

        isAnswered = inputAnswer != null && !inputAnswer.isEmpty();
    }


}

Java Source Code List

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