Java课程“新”得（六）改进版期中作业

import java.util.ArrayList;
import java.util.Collections;
import java.util.Random;

public class Game {
ArrayList choujiang;
public static void main(String[] args) {
// TODO Auto-generated method stub
Game g = new Game();
g.deal();
System.out.println("一等奖获得者：");
g.sj(1);
System.out.println("电冰箱一台 ");
System.out.println("二等奖获得者：");
g.sj(2);
System.out.println("炒锅一个 ");
System.out.println("三等奖获得者：");
g.sj(10);
System.out.println("200元购物卡一张");
System.out.println("恭喜以上获奖者");

}
public void deal(){
	if(choujiang == null){
		choujiang = new ArrayList<Integer>();
		for(int i=1;i<=2000;i++){
			choujiang.add(i);
		}
	}
	Collections.shuffle(choujiang);
}
public void sj(int n){
	Random ran1 = new Random(2000);
    
    for (int i = 0; i < n; i++) {
    	int index = ran1.nextInt(choujiang.size());
        System.out.print(choujiang.get(index)+"	");
        choujiang.remove(index);
       
    }

}

}