question.java

来自「A Java application to manage multiple cl」· Java 代码 · 共 78 行

package quiz;

import java.util.Collection;
import java.util.LinkedList;

public class Question implements Comparable {

	private String titel;
    private String text;
    private int order;
    private int altCounter=1;
    private Collection alternative=new LinkedList();
    private boolean oneCorrectAlternative=false;
    private int correctAlternative=-1;

    public Question(String titel, String text, int order){
    	this.titel = titel;
    	this.text = text;
    	this.order = order;
    }
    /**
     * @return
     */
    public String getTitel() {
    	return titel;
    }

    /**
     * @return
     */
    public String getText() {
        return text;
    }

    /**
     * @return
     */
    public int getOrder() {
        return order;
    }

    /**
     * @param text
     * @param correct
     * @return
     */
    public Alternative addAlternative(String text, boolean correct) throws MultipleCorrectAlternatives {
        if(correct){
            if(oneCorrectAlternative){
                throw new MultipleCorrectAlternatives();
            }else{
                oneCorrectAlternative = true;
            }
            correctAlternative = altCounter;
        }
        Alternative alt = new Alternative(text,correct,altCounter++);
        alternative.add(alt);
        return alt;
    }

    /**
     * @return
     */
    public Collection getAlternative() {
        return alternative;
    }

    int indexCorrectAlternative(){
        return correctAlternative;
    }

	public int compareTo(Object arg0) {
        Question other = (Question)arg0;
        return this.order - other.order;
	}

}