import java.sql.Date;
2 import java.text.SimpleDateFormat;
3 import java.util.ArrayList;
4 import java.util.Iterator;
5 import java.util.Scanner;
6 import java.util.Set;
7 import java.util.TreeSet;
8
9 import javax.net.ssl.TrustManagerFactorySpi;
10 import javax.print.DocFlavor.STRING;
11
12
13 //------DVD数据集合
14 class DVDSet{
15
16 //--DVD名称
17 ArrayList<String> nameList = new ArrayList<String>();
18 //--DVD状态
19 ArrayList<Integer> stateList = new ArrayList<Integer>();
20 //--DVD借出日期
21 ArrayList<String> dateList = new ArrayList<String>();
22 //--DVD借出次数
23 ArrayList<Integer> countList = new ArrayList<Integer>();
24
25 }
26
27 class Rank implements Comparable<Rank>{
28
29 String DVDName;
30 Integer DVDState;
31 String DVDDate;
32 Integer DVDCount;
33
34 public Rank(String DVDName,Integer DVDState,String DVDDate,Integer DVDCount){
35
36 this.DVDName = DVDName;
37 this.DVDState = DVDState;
38 this.DVDDate = DVDDate;
39 this.DVDCount = DVDCount;
40 }
41
42 @Override
43 public String toString() {
44 // TODO Auto-generated method stub
45 return "\n[DVD:《" + this.DVDName + "》\t状态：" + this.DVDState + "\t日期：" + this.DVDDate + "\t次数:" + this.DVDCount + "]";
46 }
47 @Override
48 public int compareTo(Rank o) {
49 // TODO Auto-generated method stub
50 if(o.DVDCount == o.DVDCount)
51 return -1;
52 return o.DVDCount - o.DVDCount;
53 }
54 }
55
56 class DVDMagr{
57
58 //------构造DVD集合对象
59 DVDSet DVD = new DVDSet();
60
61 //------DVD数据的初始化
62 public void initial(){
63
64 DVD.nameList.add("罗马假日");
65 DVD.nameList.add("风声鹤唳");
66 DVD.nameList.add("浪漫满屋");
67
68 DVD.stateList.add(0);
69 DVD.stateList.add(1);
70 DVD.stateList.add(1);
71
72 DVD.dateList.add("2016-12-1");
73 DVD.dateList.add("无");
74 DVD.dateList.add("无");
75
76 DVD.countList.add(1);
77 DVD.countList.add(0);
78 DVD.countList.add(0);
79 }
80
81 //------菜单切换方法
82 public void startMenu(){
83
84 System.out.println("1. 新增 DVD");
85 System.out.println("2. 查看 DVD");
86 System.out.println("3. 删除 DVD");
87 System.out.println("4. 借出 DVD");
88 System.out.println("5. 归还 DVD");
89 System.out.println("6. 退 出");
90 System.out.println("7. 借出排行榜");
91 System.out.println("*******************************");
92 System.out.println("请选择你要操作的栏目：");
93 Scanner keyNum = new Scanner(System.in);
94 switch (keyNum.nextInt()) {
95 case 1:
96 System.out.println("----------->新增DVD~~~");
97 System.out.println("*******************************");
98 addDVD();
99 break;
100 case 2:
101 System.out.println("----------->查看DVD~~~");
102 System.out.println("*******************************");
103 searchDVD();
104 break;
105 case 3:
106 System.out.println("----------->删除DVD~~~");
107 System.out.println("*******************************");
108 deleteDVD();
109 break;
110 case 4:
111 System.out.println("----------->借出DVD~~~");
112 System.out.println("*******************************");
113 lendDVD();
114 break;
115 case 5:
116 System.out.println("----------->归还DVD~~~");
117 System.out.println("*******************************");
118 returnDVD();
119 break;
120 case 6:
121 System.out.println("----------->退出DVD~~~");
122 System.out.println("*******************************");
123 returnSystem();
124 break;
125 case 7:
126 System.out.println("----------->DVD借出排行榜~~~");
127 System.out.println("*******************************");
128 listDVD();
129 break;
130 default :
131 System.out.println("操作异常，程序重载中........");
132 break;
133 }
134 }
135
136 //------------新增DVD的方法
137 public void addDVD(){
138
139 Scanner keyInput = new Scanner(System.in);
140 for (int i = 0; i < DVD.nameList.size(); i++) {
141
142 if (DVD.nameList.get(i).equals(DVD.nameList.get(DVD.nameList.size()-1))) {
143
144 System.out.println("请输入你要添加的 DVD名称：");
145 DVD.nameList.add(keyInput.next());
146 DVD.stateList.add(1);
147 DVD.dateList.add("无");
148 DVD.countList.add(0);
149 System.out.println("新的DVD添加成功~~~~~");
150 System.out.println("继续添加请按“1”，返回请按“0”：");
151 Scanner keyNum = new Scanner(System.in);
152 int num = keyNum.nextInt();
153 if (num == 1) {
154
155 addDVD();
156 }else if (num == 0) {
157
158 startMenu();
159 }
160 }
161 }
162 }
163
164 //------------查看DVD的方法
165 public void searchDVD(){
166
167 System.out.println("序号\t" + "状态\t" + "名称\t\t" + "借出日期");
168 for (int i = 0; i < DVD.nameList.size(); i++) {
169
170 if (DVD.nameList.get(i) != null) {
171
172 if (DVD.stateList.get(i) == 0) {
173
174 System.out.println(( i + 1) + "\t已 借出\t" +"<<" + DVD.nameList.get(i) + ">>\t" + DVD.dateList.get(i));
175 }else if (DVD.stateList.get(i) == 1) {
176
177 System.out.println(( i + 1) + "\t可以借阅\t" + "<<" + DVD.nameList.get(i) + ">>\t" + DVD.dateList.get(i));
178 }
179 }
180 }
181 returnMain();
182 }
183
184 //------------删除DVD的方法
185 public void deleteDVD(){
186
187 System.out.println("请输入你要删除的DVD：");
188 Scanner keyInput = new Scanner(System.in);
189 String deleteDVD = keyInput.next();
190 Iterator<String> it = DVD.nameList.iterator();
191
192 while (it.hasNext()) {
193
194 if (deleteDVD.equalsIgnoreCase(it.next())) {
195
196 int index = DVD.nameList.indexOf(deleteDVD);
197 if (DVD.stateList.get(index) == 1) {
198
199 DVD.nameList.remove(deleteDVD);
200 DVD.stateList.remove(index);
201 DVD.dateList.remove(index);
202 System.out.println("《" + deleteDVD + "》" + "删除成功！！！");
203 break;
204 }else if (DVD.stateList.get(index) == 0) {
205
206 System.out.println("《" + deleteDVD + "》" +"已借出，无法删除");
207 break;
208 }
209 }
210
211 if(it.hasNext() == false){
212
213 System.out.println("对不起，无法获取此DVD信息，请确认信息后重试！！！");
214 }
215 }
216 returnMain();
217 }
218
219 //------------借出DVD的方法
220 public void lendDVD(){
221
222 System.out.println("请输入你要借出的DVD：");
223 Scanner keyInput = new Scanner(System.in);
224 String lendDVD = keyInput.next();
225 Iterator<String> it = DVD.nameList.iterator();
226 while (it.hasNext()) {
227
228 if(lendDVD.equalsIgnoreCase(it.next())){
229
230 int index = DVD.nameList.indexOf(lendDVD);
231 if(DVD.stateList.get(index) == 1){
232
233 System.out.println("《" + lendDVD + "》" +"已找到，可以借阅！！！");
234 System.out.println("请输入你的借阅时间（年-月-日）：");
235 Scanner keyDate = new Scanner(System.in);
236 DVD.dateList.set(index, keyDate.next());
237 DVD.stateList.set(index, 0);
238 int num = DVD.countList.get(index);
239 num++;
240 System.out.println("《" + lendDVD + "》" + "借阅成功!!!");
241 break;
242 }else if (DVD.stateList.get(index) == 0) {
243
244 System.out.println("《" + lendDVD + "》" +"已借出，无法借阅！！！");
245 break;
246 }
247 }
248
249 if (it.hasNext() == false) {
250
251 System.out.println("对不起，无法获取此DVD信息，请确认信息后重试！！！");
252 }
253 }
254 returnMain();
255 }
256
257 //------------归还DVD的方法
258 public void returnDVD(){
259
260 String lendDate;
261 String returnDate;
262 System.out.println("请输入你要归还的DVD：");
263 Scanner keyInput = new Scanner(System.in);
264 String returnDVD = keyInput.next();
265 int index = DVD.nameList.indexOf(returnDVD);
266 if (index >= 0 && DVD.stateList.get(index) == 0) {
267
268 lendDate = DVD.dateList.get(index);
269 System.out.println("请输入你的归还日期（年-月-日）：");
270 returnDate = keyInput.next();
271 DVD.stateList.set(index, 1);
272 DVD.dateList.set(index, "无");
273 System.out.println("《" + returnDVD + "》归还成功！！！");
274 System.out.println("借DVD期间你所要支付的租金为（Charge）：" + charge(lendDate,returnDate) + "$");
275 }else{
276
277 System.out.println("你归还的DVD没有借阅信息，请重新确认信息！！！");
278 }
279 returnMain();
280 }
281
282 //-------------租金计算系统
283 public long charge(String lendDate,String returnDate){
284
285 long charge = 0;
286 SimpleDateFormat SDF = new SimpleDateFormat("yyyy-MM-dd");
287 try {
288 java.util.Date lDate = SDF.parse(lendDate);
289 java.util.Date reDate = SDF.parse(returnDate);
290 charge = (reDate.getTime() - lDate.getTime()) / (24*60*62*1000);
291 } catch (Exception e) {
292 // TODO: handle exception
293 e.printStackTrace();
294 }
295 return charge + 2;
296 }
297
298 //------------DVD排行榜
299 public void listDVD(){
300
301
302 TreeSet set = new TreeSet();
303
304 for (int i = 0; i < DVD.nameList.size(); i++) {
305
306 set.add(new Rank(DVD.nameList.get(i), DVD.stateList.get(i), DVD.dateList.get(i), DVD.countList.get(i)));
307 }
308
309 Iterator it = set.descendingIterator();
310
311 while(it.hasNext()){
312
313 System.out.println(it.next());
314 }
315 }
316
317 //------------返回主菜单方法
318 public void returnMain(){
319
320 System.out.println("*******************************");
321 Scanner keyInput = new Scanner(System.in);
322 System.out.println("系统操作：返回(*) 退出(#)：");
323 if (keyInput.next().equals("*")) {
324
325 startMenu();
326 }else if (keyInput.next().equals("#")) {
327
328 returnDVD();
329 }else {
330
331 System.out.println("输入错误，异常终止！！！");
332 return;
333 }
334 }
335
336 //------------退出DVD的方法
337 public void returnSystem(){
338
339 Scanner keyInput = new Scanner(System.in);
340 System.out.println("确认退出请输入-0-：");
341 if (keyInput.nextInt() == 0) {
342
343 System.out.println("DVD退出成功......");
344 return;
345 }else{
346
347 System.out.println("输入错误，异常终止！！！");
348 return;
349 }
350 }
351 }
352
353 public class MiniDVD {
354
355 /**
356 * @param args
357 */
358 public static void main(String[] args) {
359 // TODO Auto-generated method stub
360
361 //----构造管理员对象
362 DVDMagr manger = new DVDMagr();
363
364 System.out.println("\n");
365 System.out.println("*******************************");
366 System.out.println("欢迎使用迷你DVD管理器");
367 System.out.println("*******************************");
368
369 //----DVD数据的初始化
370 manger.initial();
371
372 //----DVD的主菜单
373 manger.startMenu();
374 }
375
376 }
