小编tty*_*yip的帖子

无法使用x86仿真器,AVD管理器显示警告"找不到/ dev/kvm"并告诉我编辑BIOS安全设置以启用VT-x.

package com.supermarket.project;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        float amountF;
        Scanner amount = new Scanner(System.in);
        System.out.printf("Please enter the amount of purchase: ");
        amountF = amount.nextFloat();
        if (amountF >= 300) {
            System.out.printf("You amount of purchase is: %1.1f.%n"
                    + "You have a discount of: %1.1f * 90% = %1.1f.%n"
                    + "You can enjoy free delivery service.", amountF, amountF,
                    amountF * 0.9);
        } else {
            System.out.printf("Your amount of purchase is: %1.1f.%n"
                    + "Delivery service is available for …