GCJ 2014 - Magic Trick Problem

MagicTrick.java

package com.bchetty.gcj2014;

import java.util.ArrayList;
import java.util.List;

/**
 * GCJ 2014 - Magic Trick Problem
 *
 * @author Babji, Chetty
 */
public class MagicTrick {    
    /**
     * 
     * @param firstRow
     * @param rowList1
     * @param secondRow
     * @param rowList2
     * @return 
     */
    public String findTrickResult(List<Integer> rowList1, List<Integer> rowList2) {
        int count = 0;
        int res = 0;
        String result = null;

        for(int i=0;i<rowList1.size();i++) {
            int temp = rowList1.get(i);
            if(rowList2.contains(temp)) {
                count++;
                res = temp;
            }
        }
        
        switch(count) {
            case 0:
                result = "Volunteer cheated!";
                break;
            case 1:
                result = "" + res;
                break;
            default:
                result = "Bad magician!";
                break;
        }
        
        return result;
    }
}