candidatelist.java

一个用JAVA 写的程序

import java.io.*;
import java.lang.*;

public class CandidateList
{
	private int MAXNUM = 30;
	private int number;
	Candidate[] candidates;
	Candidate   winner;
	
	public CandidateList()
	{
		candidates 	= new Candidate[MAXNUM];
		number 		= 0;
	}

	public  void add(Candidate aCandidate)
	{
		candidates[number] = aCandidate;
		number ++ ;
	}
	
	 public Candidate find(String CandidateId)
    {
        boolean found = false;
        int i = 0;
        while (!found && i < number)
        {
            if (candidates[i].getId().equals(CandidateId))
            {                
                found = true;
            }
            else 
                i ++;                
        }
        if (found == false)
            return null;
        else
            return candidates[i];
    }
    
	 public int getNumberOfCandidates()
    {
        return number;
    }
    
    public Candidate getCandidate(int index)
    {
    		return candidates[index];
    }
    public  void setCandidate(Candidate candidate,int index)
    {
    		candidates[index] = candidate;
    }
    public void setWinner(Candidate w)
    {
    		winner = w ;
    }
    public Candidate getWinner()
    {
    		int index = -1;
		   int i;
		   
    		for (i = 0 ; i < number ; i++)
		    {
		    		if (candidates[i].isElected() == false) 
				   {
				   	 candidates[i].setEliminated();
					}
					else
					{
						index = i;
					}
			 }
			 if (i > 0)
			 {
			 	return candidates[index];
			 }
			 else
			 {
			 	return null;
			 }
	 }
    
    
}