java1.12.3实验3（从键盘输入数据）Scanner工具类

import java.util.Scanner;
public class Test {
public static void main(String[] args){
int amount;
float price , sum;
Scanner input=new Scanner(System.in);
System.out.print("please input the amount:");
amount=input.nextInt();
System.out.print("please input the price:");
price=input.nextFloat();
sum=price*amount;
System.out.printf("amount:%d,   price:%5.2f,   sum:%5.2f",amount,price,sum);

}

}