用java编写购买地铁车票的规定如下:乘1-4站，3元/位；乘5-9站，4元/位；乘9站以上，5元/位,编写一个程序:(1) 输入人数、站数，输出应付款；

import java.util.Scanner;
public class W{
	public static void main(String args[]){
	int station=0;
	int people =0;
	
	while(true){
	Scanner sc=new Scanner(System.in);
	System.out.printf("nn请输入人数");
	people=sc.nextInt();
	System.out.println("请输入站数");
	station=sc.nextInt();
	if(people>0 && station>0){
	if (station>9)
	System.out.printf("票价是%d",5*people);
	switch(station){
	case 1:
	case 2:
	case 3:
	case 4: System.out.printf("票价是%d",3*people);
		  break;
	case 5:
	case 6:
	case 7:
	case 8:
	case 9: System.out.printf("票价是%d",4*people);
		  break;
	}
	}
	else System.out.println("输入错误，请再次输入");
	}
	}
}