问ArrayList访问器方法不返回值

EN

import java.util.*;
public class Election {

    public ArrayList<Candidate> candidates = new ArrayList<Candidate>();

    Election(int numVotes) {
        String name;
        ArrayList<Candidate> candidates = new ArrayList<Candidate>();
        Scanner keyboard = new Scanner(System.in);
        System.out.println("Enter the candidates you want in the election.");
        System.out.println("Enter -1 once you have listed all the candidates.");
        System.out.print("Start entering candidates: ");
        name = keyboard.nextLine();
        while (!name.equals("-1")) {
            candidates.add(new Candidate(name));
            System.out.print("Ok, enter a new candidate or -1: ");
            name = keyboard.nextLine();

        }

        //Works fine here
    }

    public ArrayList<Candidate> getCandidateList() {   
        //Keeps returning empty list
        //System.out.println(candidates);
        return this.candidates;    
    }
}