刚刚开始学java，我的第一个比较好一点的Java程序。ps：只要努力，就会有收获

package shopping;

import java.util.Scanner;

public class Shopping {

//实现购物结算功能

public static void main(String []args){

Scanner sc=new Scanner(System.in);

int buyOrNot = 0;//选择买还是取消

do{

System.out.println("====请选择要购买的商品====");

System.out.println("====1.T恤 ====");

System.out.println("====2.手机 ====");

System.out.println("====3.电脑 ====");

System.out.println("请选择输入的编号 ：");

int choose1=sc.nextInt();

switch(choose1){

case 1:

System.out.println("====请选择品牌 ====");

System.out.println("====1.阿迪 ====");

System.out.println("====2.耐克 ====");

System.out.println("====3.李宁 ====");

//选择购买的是什么品牌

int choose2=sc.nextInt();

switch(choose2){

case 1:

System.out.println("====请确认价格 ====");

System.out.println("====您购买的阿迪牌T恤价格为"+Math.round(300*0.95)+" ====");

System.out.println("====1.购买 ====");

System.out.println("====0.取消 ====");

buyOrNot=sc.nextInt();

if(buyOrNot==1){

System.out.println("恭喜你购买成功");

System.out.println("拜拜");break;

}else{

System.out.println("请重新选择：");

}

break;

case 2:

System.out.println("====请确认价格 ====");

System.out.println("====您购买的耐克牌T恤价格为"+Math.round(250*0.85)+" ====");

System.out.println("====1.购买 ====");

System.out.println("====0.取消 ====");

buyOrNot=sc.nextInt();

if(buyOrNot==1){

System.out.println("恭喜你购买成功");

System.out.println("拜拜");break;

}else{

System.out.println("请重新选择：");

}

break;

case 3:

System.out.println("====请确认价格 ====");

System.out.println("====您购买的李宁牌T恤价格为"+Math.round(125*0.72)+" ====");

System.out.println("====1.购买 ====");

System.out.println("====0.取消 ====");

buyOrNot=sc.nextInt();

if(buyOrNot==1){

System.out.println("恭喜你购买成功");

System.out.println("拜拜");break;

}else{

System.out.println("请重新选择：");

}

break;

9610
}

break;

case 2:

System.out.println("====请选择品牌 ====");

System.out.println("====1.苹果 ====");

System.out.println("====2.小米 ====");

System.out.println("====3.华为 ====");

int choose3=sc.nextInt();

switch(choose3){

case 1:

System.out.println("====请确认价格 ====");

System.out.println("====您购买的苹果手机价格为"+Math.round(6100*0.87)+" ====");

System.out.println("====1.购买 ====");

System.out.println("====0.取消 ====");

buyOrNot=sc.nextInt();

if(buyOrNot==1){

System.out.println("恭喜你购买成功");

System.out.println("拜拜");break;

}else{

System.out.println("请重新选择：");

}

break;

case 2:

System.out.println("====请确认价格 ====");

System.out.println("====您购买的小米手机价格为"+Math.round(899*0.92)+" ====");

System.out.println("====1.购买 ====");

System.out.println("====0.取消 ====");

buyOrNot=sc.nextInt();

if(buyOrNot==1){

System.out.println("恭喜你购买成功");

System.out.println("拜拜");break;

}else{

System.out.println("请重新选择：");

}

break;

case 3:

System.out.println("====请确认价格 ====");

System.out.println("====您购买的华为手机价格为"+Math.round(1999*0.92)+" ====");

System.out.println("====1.购买 ====");

System.out.println("====0.取消 ====");

buyOrNot=sc.nextInt();

if(buyOrNot==1){

System.out.println("恭喜你购买成功");

System.out.println("拜拜");break;

}else{

System.out.println("请重新选择：");

}

break;

}

break;

case 3:

System.out.println("====请选择品牌 ====");

System.out.println("====1.惠普 ====");

System.out.println("====2.联想 ====");

System.out.println("====3.华硕 ====");

int choose4=sc.nextInt();

switch(choose4){

case 1:

System.out.println("====请确认价格 ====");

System.out.println("====您购买的惠普电脑价格为"+Math.round(8900*0.95)+" ====");

System.out.println("====1.购买 ====");

System.out.println("====0.取消 ====");

buyOrNot=sc.nextInt();

if(buyOrNot==1){

System.out.println("恭喜你购买成功");

System.out.println("拜拜");break;

}else{

System.out.println("请重新选择：");

}

break;

case 2:

System.out.println("====请确认价格 ====");

System.out.println("====您购买的联想电脑价格为"+Math.round(4998*0.9)+" ====");

System.out.println("====1.购买 ====");

System.out.println("====0.取消 ====");

buyOrNot=sc.nextInt();

if(buyOrNot==1){

System.out.println("恭喜你购买成功");

System.out.println("拜拜");break;

}else{

System.out.println("请重新选择：");

}

break;

case 3:

System.out.println("====请确认价格 ====");

System.out.println("====您购买的华硕电脑价格为"+Math.round(300*0.8)+" ====");

System.out.println("====1.购买 ====");

System.out.println("====0.取消 ====");

buyOrNot=sc.nextInt();

if(buyOrNot==1){

System.out.println("恭喜你购买成功");

System.out.println("拜拜");break;

}else{

System.out.println("请重新选择：");

}

break;

}

break;

}

}while(buyOrNot!=1);

}

}