要使用Java編寫超市購物程序,您需要使用Java數(shù)據庫編程技術來連接到您的數(shù)據庫并執(zhí)行相關的數(shù)據庫操作。在Java中,您可以使用JDBC(Java數(shù)據庫連接)API來連接到數(shù)據庫并執(zhí)行SQL語句。例如,您可以使用JDBC API來執(zhí)行以下操作:
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創(chuàng)建數(shù)據庫連接
執(zhí)行增刪改查(CRUD)操作
提交或回滾事務
執(zhí)行存儲過程和函數(shù)
查詢數(shù)據庫元數(shù)據
此外,您還可以使用Java的面向對象編程技術來封裝數(shù)據庫操作,以便更方便地在您的程序中使用。例如,您可以創(chuàng)建一個類來表示超市商品,并定義一些方法來執(zhí)行商品的增刪改查操作。這樣,您就可以在程序中通過調用這些方法來簡單地完成對數(shù)據庫的操作,而不需要編寫復雜的SQL語句。
package cn.job01;
import java.util.Scanner;
public class Lx07 {
public static void choice() {
System.out.println("登陸菜單 ");
System.out.println("1登陸系統(tǒng)");
System.out.println("2退出");
}
static void choice1() {
System.out.println("購物管理系統(tǒng)客戶信息");
System.out.println("1顯示所有客戶信息");
System.out.println("2添加客戶信息");
System.out.println("3修改客戶信息");
System.out.println("4查詢客戶信息");
}
static void choice2() {
System.out.println("購物管理系統(tǒng)真情回饋");
System.out.println("1幸運大放送");
System.out.println("2幸運抽獎");
System.out.println("3生日問候");
}
public static void main(String[] args) {
choice();
Scanner input = new Scanner(System.in);
System.out.println("請輸入1or2");
int num = input.nextInt();
switch (num) {
case 1:
System.out.println("主菜單");
System.out.println("1客戶信息管理");
System.out.println("2購物結算");
System.out.println("3真情回饋");
System.out.println("4注銷");
break;
}
System.out.println("選擇輸入數(shù)字");
int num1 = input.nextInt();
switch (num1) {
case 1:
choice1();
break;
case 2:
System.out.println("購物結算");
break;
case 3:
choice2();
break;
case 4:
choice();
break;
}
}
}
去修改下
JAVA WEB項目的網絡購物網站源代碼的話,很復雜的話,肯定是沒有的,你可以去eoe或者安卓巴士網站看看有沒有源碼
算是最簡單的吧
package cn.job01;
import java.util.Scanner;
public class Lx07 {
public static void choice() {
System.out.println("登陸菜單 ");
System.out.println("1登陸系統(tǒng)");
System.out.println("2退出");
}
static void choice1() {
System.out.println("購物管理系統(tǒng)客戶信息");
System.out.println("1顯示所有客戶信息");
System.out.println("2添加客戶信息");
System.out.println("3修改客戶信息");
System.out.println("4查詢客戶信息");
}
static void choice2() {
System.out.println("購物管理系統(tǒng)真情回饋");
System.out.println("1幸運大放送");
System.out.println("2幸運抽獎");
System.out.println("3生日問候");
}
public static void main(String[] args) {
choice();
Scanner input = new Scanner(System.in);
System.out.println("請輸入1or2");
int num = input.nextInt();
switch (num) {
case 1:
System.out.println("主菜單");
System.out.println("1客戶信息管理");
System.out.println("2購物結算");
System.out.println("3真情回饋");
System.out.println("4注銷");
break;
}
System.out.println("選擇輸入數(shù)字");
int num1 = input.nextInt();
switch (num1) {
case 1:
choice1();
break;
case 2:
System.out.println("購物結算");
break;
case 3:
choice2();
break;
case 4:
choice();
break;
}
}
}
/**
*?@description:?
*?@author?chenshiqiang?E-mail:csqwyyx@163.com
*?@date?2014年9月7日?下午2:51:50???
*?@version?1.0???
*/
package?com.example.baidumap;
import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.HashSet;
import?java.util.List;
import?android.app.Activity;
import?android.os.Bundle;
import?android.support.v4.view.PagerAdapter;
import?android.support.v4.view.PagerTabStrip;
import?android.support.v4.view.ViewPager;
import?android.text.Editable;
import?android.util.Log;
import?android.view.LayoutInflater;
import?android.view.View;
import?android.view.ViewGroup;
import?android.widget.ExpandableListView;
import?android.widget.ListView;
import?com.baidu.mapapi.map.offline.MKOLSearchRecord;
import?com.baidu.mapapi.map.offline.MKOLUpdateElement;
import?com.baidu.mapapi.map.offline.MKOfflineMap;
import?com.baidu.mapapi.map.offline.MKOfflineMapListener;
import?com.example.baidumap.adapters.OfflineExpandableListAdapter;
import?com.example.baidumap.adapters.OfflineMapAdapter;
import?com.example.baidumap.adapters.OfflineMapManagerAdapter;
import?com.example.baidumap.interfaces.OnOfflineItemStatusChangeListener;
import?com.example.baidumap.models.OfflineMapItem;
import?com.example.baidumap.utils.CsqBackgroundTask;
import?com.example.baidumap.utils.ToastUtil;
import?com.example.system.R;
public?class?BaiduOfflineMapActivity?extends?Activity?implements?MKOfflineMapListener,?OnOfflineItemStatusChangeListener
{
//?------------------------?Constants?------------------------
//?-------------------------?Fields?--------------------------
private?ViewPager?viewpager;
private?PagerTabStrip?pagertab;
private?MySearchView?svDown;
private?ListView?lvDown;
private?MySearchView?svAll;
private?ExpandableListView?lvWholeCountry;
private?ListView?lvSearchResult;
private?ListView?views?=?new?ArrayListView(2);
private?ListString?titles?=?new?ArrayListString(2);
private?MKOfflineMap?mOffline?=?null;
private?OfflineMapManagerAdapter?downAdapter;
private?OfflineMapAdapter?allSearchAdapter;
private?OfflineExpandableListAdapter?allCountryAdapter;
private?ListOfflineMapItem?itemsDown;?//?下載或下載中城市
private?ListOfflineMapItem?itemsAll;?//?所有城市,與熱門城市及下載管理對象相同
private?ListOfflineMapItem?itemsProvince;
private?ListListOfflineMapItem?itemsProvinceCity;
//?-----------------------?Constructors?----------------------
//?--------?Methods?for/from?SuperClass/Interfaces?-----------
@Override
protected?void?onCreate(Bundle?savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_offline_map);
// final?String?packname?=?this.getPackageName();
// PackageInfo?packageInfo;
// try
// {
// packageInfo?=?this.getPackageManager().getPackageInfo(packname,?PackageManager.GET_SIGNATURES);
//
//
// if?(code?==?-00)
// {
//?初始化離線地圖管理
mOffline?=?new?MKOfflineMap();
mOffline.init(this);
initViews();
viewpager.setCurrentItem(1);
// }
// }
// catch?(NameNotFoundException?e)
// {
// e.printStackTrace();
// }
}
private?boolean?isResumed?=?false;
@Override
protected?void?onResume()
{
super.onResume();
if?(!isResumed)
{
isResumed?=?true;
loadData();
}
}
@Override
protected?void?onDestroy()
{
super.onDestroy();
mOffline.destroy();
}
/**
?*?
?*?@author?chenshiqiang?E-mail:csqwyyx@163.com
?*?@param?type
?*????????????事件類型:?MKOfflineMap.TYPE_NEW_OFFLINE,?MKOfflineMap.TYPE_DOWNLOAD_UPDATE,?MKOfflineMap.TYPE_VER_UPDATE.
?*?@param?state
?*????????????事件狀態(tài):?當type為TYPE_NEW_OFFLINE時,表示新安裝的離線地圖數(shù)目.?當type為TYPE_DOWNLOAD_UPDATE時,表示更新的城市ID.
?*/
@Override
public?void?onGetOfflineMapState(int?type,?int?state)
{
switch?(type)
{
case?MKOfflineMap.TYPE_DOWNLOAD_UPDATE:
MKOLUpdateElement?update?=?mOffline.getUpdateInfo(state);
if?(setElement(update,?true)?!=?null)
{
if?(itemsDown?!=?null??itemsDown.size()??1)
{
Collections.sort(itemsDown);
}
refreshDownList();
}
else
{
downAdapter.notifyDataSetChanged();
}
allSearchAdapter.notifyDataSetChanged();
allCountryAdapter.notifyDataSetChanged();
break;
case?MKOfflineMap.TYPE_NEW_OFFLINE:
//?有新離線地圖安裝
Log.d("OfflineDemo",?String.format("add?offlinemap?num:%d",?state));
break;
case?MKOfflineMap.TYPE_VER_UPDATE:
//?版本更新提示
break;
}
}
/**
?*?百度下載狀態(tài)改變(暫停--》恢復)居然不回調,所以改變狀態(tài)時自己得增加接口監(jiān)聽狀態(tài)改變刷新界面
?*?
?*?@author?chenshiqiang?E-mail:csqwyyx@163.com
?*?@param?item
?*????????????有狀態(tài)改變的item
?*?@param?removed
?*????????????item是否被刪除
?*/
@Override
public?void?statusChanged(OfflineMapItem?item,?boolean?removed)
{
if?(removed)
{
for?(int?i?=?itemsDown.size()?-?1;?i?=?0;?i--)
{
OfflineMapItem?temp?=?itemsDown.get(i);
if?(temp.getCityId()?==?item.getCityId())
{
itemsDown.remove(i);
}
}
refreshDownList();
}
else
{
loadData();
downAdapter.notifyDataSetChanged();
}
allSearchAdapter.notifyDataSetChanged();
allCountryAdapter.notifyDataSetChanged();
}
//?---------------------?Methods?public?----------------------
public?void?toDownloadPage()
{
viewpager.setCurrentItem(0);
}
//?---------------------?Methods?private?---------------------
private?void?initViews()
{
//?TODO
viewpager?=?(ViewPager)?findViewById(R.id.viewpager);
pagertab?=?(PagerTabStrip)?findViewById(R.id.pagertab);
LayoutInflater?inf?=?LayoutInflater.from(this);
View?v1?=?inf.inflate(R.layout.view_offline_download,?null,?false);
svDown?=?(MySearchView)?v1.findViewById(R.id.svDown);
lvDown?=?(ListView)?v1.findViewById(R.id.lvDown);
views.add(v1);
View?v2?=?inf.inflate(R.layout.view_offline_countrys,?null,?false);
svAll?=?(MySearchView)?v2.findViewById(R.id.svAll);
lvWholeCountry?=?(ExpandableListView)?v2.findViewById(R.id.lvWholeCountry);
lvSearchResult?=?(ListView)?v2.findViewById(R.id.lvSearchResult);
views.add(v2);
titles.add("下載管理");
titles.add("城市列表");
pagertab.setTabIndicatorColor(0xff00cccc);
pagertab.setDrawFullUnderline(false);
pagertab.setBackgroundColor(0xFF38B0DE);
pagertab.setTextSpacing(50);
viewpager.setOffscreenPageLimit(2);
viewpager.setAdapter(new?MyPagerAdapter());
svDown.setSearchListener(new?MySearchView.SearchListener()
{
@Override
public?void?afterTextChanged(Editable?text)
{
refreshDownList();
}
@Override
public?void?search(String?text)
{
}
});
svAll.setSearchListener(new?MySearchView.SearchListener()
{
@Override
public?void?afterTextChanged(Editable?text)
{
refreshAllSearchList();
}
@Override
public?void?search(String?text)
{
}
});
downAdapter?=?new?OfflineMapManagerAdapter(this,?mOffline,?this);
lvDown.setAdapter(downAdapter);
allSearchAdapter?=?new?OfflineMapAdapter(this,?mOffline,?this);
lvSearchResult.setAdapter(allSearchAdapter);
allCountryAdapter?=?new?OfflineExpandableListAdapter(this,?mOffline,?this);
lvWholeCountry.setAdapter(allCountryAdapter);
lvWholeCountry.setGroupIndicator(null);
}
/**
?*?刷新下載列表,?根據搜索關鍵字及itemsDown?下載管理數(shù)量變動時調用
?*/
private?void?refreshDownList()
{
String?key?=?svDown.getInputText();
if?(key?==?null?||?key.length()??1)
{
downAdapter.setDatas(itemsDown);
}
else
{
ListOfflineMapItem?filterList?=?new?ArrayListOfflineMapItem();
if?(itemsDown?!=?null??!itemsDown.isEmpty())
{
for?(OfflineMapItem?i?:?itemsDown)
{
if?(i.getCityName().contains(key))
{
filterList.add(i);
}
}
}
downAdapter.setDatas(filterList);
}
}
/**
?*?刷新所有城市搜索結果
?*/
private?void?refreshAllSearchList()
{
String?key?=?svAll.getInputText();
if?(key?==?null?||?key.length()??1)
{
lvSearchResult.setVisibility(View.GONE);
lvWholeCountry.setVisibility(View.VISIBLE);
allSearchAdapter.setDatas(null);
}
else
{
lvSearchResult.setVisibility(View.VISIBLE);
lvWholeCountry.setVisibility(View.GONE);
ListOfflineMapItem?filterList?=?new?ArrayListOfflineMapItem();
if?(itemsAll?!=?null??!itemsAll.isEmpty())
{
for?(OfflineMapItem?i?:?itemsAll)
{
if?(i.getCityName().contains(key))
{
filterList.add(i);
}
}
}
allSearchAdapter.setDatas(filterList);
}
}
private?void?loadData()
{
new?CsqBackgroundTaskVoid(this)
{
@Override
protected?Void?onRun()
{
//?TODO?Auto-generated?method?stub
//?導入離線地圖包
//?將從官網下載的離線包解壓,把vmp文件夾拷入SD卡根目錄下的BaiduMapSdk文件夾內。
//?把網站上下載的文件解壓,將\BaiduMap\vmp\l里面的.dat_svc文件,拷貝到手機BaiduMapSDK/vmp/h目錄下
int?num?=?mOffline.importOfflineData();
if?(num??0)
{
ToastUtil.showToastInfo(BaiduOfflineMapActivity.this,?"成功導入"?+?num?+?"個離線包",?false);
}
ListMKOLSearchRecord?all?=?null;
try
{
all?=?mOffline.getOfflineCityList();
}
catch?(Exception?e)
{
e.printStackTrace();
}
if?(all?==?null?||?all.isEmpty())
{
ToastUtil.showToastInfo(BaiduOfflineMapActivity.this,?"未獲取到離線地圖城市數(shù)據,可能有其他應用正在使用百度離線地圖功能!",?false);
return?null;
}
ListMKOLSearchRecord?hotCity?=?mOffline.getHotCityList();
HashSetInteger?hotCityIds?=?new?HashSetInteger();
if?(!hotCity.isEmpty())
{
for?(MKOLSearchRecord?r?:?hotCity)
{
hotCityIds.add(r.cityID);
}
}
itemsAll?=?new?ArrayListOfflineMapItem();
itemsDown?=?new?ArrayListOfflineMapItem();
itemsProvince?=?new?ArrayListOfflineMapItem();
itemsProvinceCity?=?new?ArrayListListOfflineMapItem();
//?cityType?0:全國;1:省份;2:城市,如果是省份,可以通過childCities得到子城市列表
//?全國概略圖、直轄市、港澳?子城市列表
ArrayListMKOLSearchRecord?childMunicipalities?=?new?ArrayListMKOLSearchRecord();
proHot.cityName?=?"熱門城市";
proHot.childCities?=?cs;
ListMKOLUpdateElement?updates?=?mOffline.getAllUpdateInfo();
if?(updates?!=?null??updates.size()??0)
{
}
@Override
protected?void?onResult(Void?result)
{
//?TODO?Auto-generated?method?stub
refreshDownList();
refreshAllSearchList();
allCountryAdapter.setDatas(itemsProvince,?itemsProvinceCity);
}
}.execute();
}
package cn.job01;
import java.util.Scanner;
public class Lx07 {
public static void choice() {
System.out.println("登陸菜單 ");
System.out.println("1登陸系統(tǒng)");
System.out.println("2退出");
}
static void choice1() {
System.out.println("購物管理系統(tǒng)客戶信息");
System.out.println("1顯示所有客戶信息");
System.out.println("2添加客戶信息");
System.out.println("3修改客戶信息");
System.out.println("4查詢客戶信息");
}
static void choice2() {
System.out.println("購物管理系統(tǒng)真情回饋");
System.out.println("1幸運大放送");
System.out.println("2幸運抽獎");
System.out.println("3生日問候");
}
public static void main(String[] args) {
choice();
Scanner input = new Scanner(System.in);
System.out.println("請輸入1or2");
int num = input.nextInt();
switch (num) {
case 1:
System.out.println("主菜單");
System.out.println("1客戶信息管理");
System.out.println("2購物結算");
System.out.println("3真情回饋");
System.out.println("4注銷");
break;
}
System.out.println("選擇輸入數(shù)字");
int num1 = input.nextInt();
switch (num1) {
case 1:
choice1();
break;
case 2:
System.out.println("購物結算");
break;
case 3:
choice2();
break;
case 4:
choice();
break;
}
}
}