public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("请输入加油量:");
int yl = sc.nextInt();
System.out.print("汽油种类(90号汽油/93号汽油/97号汽油/0号柴油):");
String lx = sc.next();
System.out.print("服务等级(自助加油/协助加油):");
String fw = sc.next();
double s =0;
if(lx.equals("90号汽油"))
s = yl * 6.8;
else if(lx.equals("93号汽油"))
s = yl * 6.42;
else if(lx.equals("97号汽油"))
s = yl * 7.02;
else if(lx.equals("0号柴油"))
s = yl * 5.75;
else{
System.out.println("类型输入错误");
return ;
}
if(fw.equals("自助加油"))
s = s*0.9;
else if(fw.equals("协助加油"))
s = s*0.95;
else{
System.out.println("服务等级输入错误");
return;
}
System.out.println("应付金额="+s);
}