package cn.idcast2;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Random;
/*分析：
 * A、把文本文件中的数据存储到集合中
 * B、随机产生一个索引
 * C、根据该索引获取一个值
 * 
 */
public class Day26 {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new FileReader("a.txt"));
		ArrayList<String> array = new ArrayList<String>();
		String line = null;
		while ((line = br.readLine()) != null) {
			array.add(line);
		}
		br.close();
		//随机产生一个索引
		Random r = new Random();
		int index = r.nextInt(array.size());
		//根据该索引获取一个值
		String name = array.get(index);
		System.out.println("幸运者是:" + name);
	}
}