#include <iostream>
using namespace std;
/* run this program using the console pauser or add your own getch, system("pause") or input loop */
//class
class fruit
{
public:
	string name;
	int price;
	int num;
	fruit(string n1,int p1,int k1)
	{
		name = n1;
		price = p1;
		num = k1;
	}	
};
int main(int argc, char** argv) {
	//1.variable
	fruit a1[] = {
		fruit("apple",30, 100),
		fruit("bala",15, 50),
		fruit("grape",50, 25)
	};
	//陣列結尾要加上;
	int s1;
	while(s1 != 4)
	{
		cout<<"\ninput the name of fruit: 1."<<a1[0].name<<", 2."<<a1[1].name<<", 3."<<a1[2].name<<", or 4.exit (1~4)";
		cin>>s1;
		switch(s1)
		{
			case 1:
				cout<<a1[0].name<<", price = "<<a1[0].price<<", num = "<<a1[0].num<<endl; 
				break;
			case 2:
				cout <<a1[1].name<<", price = "<<a1[1].price<<", num = "<<a1[1].num<<endl;
				break;
			case 3:
				cout <<a1[2].name<<", price = "<<a1[2].price<<", num = "<<a1[2].num<<endl;
				break;
		}
	 } 
	
	return 0;
}