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水果商城java源代码 水果商城java源代码怎么写
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求一套完整的JAVA WEB项目的网络购物网站源代码
/**
* @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; // 下载或下载中城市
private ListOfflineMapItem itemsAll; // 所有城市水果商城java源代码，与热门城市及下载管理对象相同
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)
// {
// 初始化离线地图管理
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
* 事件类型: MKOfflineMap.TYPE_NEW_OFFLINE, MKOfflineMap.TYPE_DOWNLOAD_UPDATE, MKOfflineMap.TYPE_VER_UPDATE.
* @param state
* 事件状态: 当type为TYPE_NEW_OFFLINE时，表示新安装水果商城java源代码的离线地图数目. 当type为TYPE_DOWNLOAD_UPDATE时，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:
// 有新离线地图安装
Log.d("OfflineDemo", String.format("add offlinemap num:%d", state));
break;
case MKOfflineMap.TYPE_VER_UPDATE:
// 版本更新提示
break;
}
}
/**
* 百度下载状态改变（暂停--》恢复）居然不回调，所以改变状态时自己得增加接口监听状态改变刷新界面
*
* @author chenshiqiang E-mail:csqwyyx@163.com
* @param item
* 有状态改变的item
* @param removed
* item是否被删除
*/
@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("下载管理");
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);
}
/**
* 刷新下载列表, 根据搜索关键字及itemsDown 下载管理数量变动时调用
*/
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);
}
}
/**
* 刷新所有城市搜索结果
*/
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
// 导入离线地图包
// 将从官网下载的离线包解压，把vmp文件夹拷入SD卡根目录下的BaiduMapSdk文件夹内。
// 把网站上下载的文件解压，将\BaiduMap\vmp\l里面的.dat_svc文件，拷贝到手机BaiduMapSDK/vmp/h目录下
int num = mOffline.importOfflineData();
if (num 0)
{
ToastUtil.showToastInfo(BaiduOfflineMapActivity.this, "成功导入" + num + "个离线包", false);
}
ListMKOLSearchRecord all = null;
try
{
all = mOffline.getOfflineCityList();
}
catch (Exception e)
{
e.printStackTrace();
}
if (all == null || all.isEmpty())
{
ToastUtil.showToastInfo(BaiduOfflineMapActivity.this, "未获取到离线地图城市数据，可能有其他应用正在使用百度离线地图功能！", 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:全国；1：省份；2：城市,如果是省份，可以通过childCities得到子城市列表
// 全国概略图、直辖市、港澳 子城市列表
ArrayListMKOLSearchRecord childMunicipalities = new ArrayListMKOLSearchRecord();
proHot.cityName = "热门城市";
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();
}
java问题 显示水果的价格
1、price=0；
switch(choice){
case 1:price=3f;break;
case 2:price=2.5f;break;
case 3:price=4.1f;break;
case 4:price=10.2f;break;
}
2、price=1；
for(int i=1;i=choice;i++){
price*=i;
}
java程序
/**
* 1.定义一个水果类Fruit,符合如下要求：
(a) 类Fruit的成员变量；
weight表示水果的质量，数据类型为float
color表示水果的颜色，数据类型为string.
(b)类Fruit的成员方法：
getWeight()获得水果的质量
getColor()获得水果的颜色
2、按照第1题中的水果类Fruit的定义，创建该类的对象f1和f2,其中f1的weight值为0.86, color值为yellow;
f2的weight值为0.73, color值为red; 存储并输出f1和f2的值，计算f1和f2的平均值。
* @author Administrator
*
*/
public class Fruit {
private float weight;
private String color;
//构造函数：用于存储对象的2个值
public Fruit(float weight, String color){
this.weight = weight;
this.color = color;
}
public float getWeight() {
return this.weight;
}
public String getColor() {
return this.color;
}
//求重量的平均值
public static float avg(float w1, float w2){
return w1*w2/2;
}
public static void main(String[] args){
Fruit f1 = new Fruit((float) 0.86, "yellow");
Fruit f2 = new Fruit((float) 0.73, "red");
System.out.println("f1:" + "\n" + " weitht:" + f1.getWeight() + "\n" + " color:" + f1.getColor());
System.out.println("f2:" + "\n" + " weitht:" + f2.getWeight() + "\n" + " color:" + f2.getColor());
System.out.println("平均值:" + Fruit.avg(f1.getWeight(), f2.getWeight()));
}
}
用java编写一个水果商店涉及到封装继承多态就可以？
class Fruit{
private String fruitName;
private float price;
public Fruit(String fruitName, float price) {
super();
this.fruitName = fruitName;
this.price = price;
}
public String getFruitName() {
return fruitName;
}
public void setFruitName(String fruitName) {
this.fruitName = fruitName;
}
public float getPrice() {
return price;
}
public void setPrice(float privce) {
this.price = privce;
}
@Override
public String toString() {
return "水果名称：" + getFruitName() + " " + "价格：" + getPrice();
}
}
class Apple extends Fruit{
public Apple(String fruitName, float price) {
super(fruitName, price);
}
}
class Banana extends Fruit{
public Banana(String fruitName, float price) {
super(fruitName, price);
}
}
public class FruitShop {
ListFruit list;
public FruitShop(){
list = new ArrayListFruit();
list.add(new Apple("苹果",3));
list.add(new Banana("香蕉",2));
}
public void show(){
for (Fruit f : list) {
System.out.println(f);
}
}
public static void main(String[] args) {
new FruitShop().show();
}
}
java程序编写，显示水果的订购详情，定义一个带有参数的构造方法，这些参数用于存放产品，数量和价格
public class ShuiGuo{
private String chanpin;
private int number;
private float price;
public ShuiGuo(String chanpin,int number,float price){
this.chanpin = chanpin;
this.number = number ;
this.price = price;
}
//省略get.set方法
}
最后的需求没看懂。是说自己输入水果之后，在来取3种不同的吗
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