public static void displayChoices(List prods) {
Product p;
for(int i=0;i<prods.size();i++){
p=prods.get(i);
System.out.print((i+1)+ " "+p.getName());
for(int j=1;j<36-p.getName().length();j++)
System.out.print(" ");
double price=(p.getPrice()/100);
double price2 = price/100;
System.out.printf("%5\n",price2);
}
System.out.printf("%20f\n",price2); //确保%后面的数字比price2的输出内容长度更长