Java面向过程实现员工管理系统（利用集合存储数据实现员工增删改查排序）
作者：互联网
界面：
1 package staffSystem;
2
3 import java.util.Scanner;
4
5 /**
6 * 交互界面
7 * @author 123
8 *
9 */
10 public class Surface {
11
12 public static void main(String[] args) {
13
14 // Staff sta = new Staff();
15 // Model mode = new Model();
16 Scanner scan = new Scanner(System.in);
17 // int index=0;
18
19 menu(scan);
20 scan.close();
21
22 }
23 public static void menu(Scanner scan) {
24 while (true) {
25
26 System.out.println("******************员工管理系统******************");
27 System.out.println("1--添加员工 2--修改员工 3--查询员工");
28 System.out.println("4--删除员工 5--员工排名 6--退出系统 ");
29 System.out.println("************************************************");
30 System.out.println("请输入序号进行操作（1-6）：");
31 int n = scan.nextInt();
32 if (n == 1) {
33 Model.addEmp();//添加
34 } else if (n == 2) {
35 Model.setEmp();//修改
36 } else if (n == 3) {
37 Model.search();//查询
38 } else if (n == 4) {
39 Model.remove();//删除
40 } else if (n == 5) {
41 Model.sort();//排序
42 } else if (n == 6) {
43 break;
44 } else {
45 System.out.println("输入不合法！请重新输入！");
46 }
47
48 }
49 System.out.println("已退出系统！！！");
50
51 }
52 public static void search1() {
53 System.out.println("此员工不存在！");
54 System.out.println();
55 System.out.println("请选择选项：");
56 System.out.println("1--重新查询 2--返回主界面");
57 }
58 }
员工类：
1 package staffSystem;
2
3 /**
4 * 员工类
5 *
6 * @author 123
7 *
8 */
9 public class Staff {
10
11 private String name;// 员工姓名
12 private int id;// 员工号
13 private String sex;// 员工性别
14 private int age;// 员工年龄
15 private float salary;// 工资
16
17 public Staff() {
18
19 }
20
21 public Staff(Integer id, String name, String sex, Integer age, Integer salary) {
22 this.id = id;
23 this.name = name;
24 this.age = age;
25 this.sex = sex;
26 this.salary = salary;
27 }
28
29 public void setSex(String sex) {
30 this.sex = sex;
31 }
32
33 public String getName() {
34 return name;
35 }
36
37 public void setName(String name) {
38 this.name = name;
39 }
40
41 public int getId() {
42 return id;
43 }
44
45 public void setId(int id) {
46 this.id = id;
47 }
48
49 public String getSex() {
50 return sex;
51 }
52
53 public int getAge() {
54 return age;
55 }
56
57 public void setAge(int age) {
58 this.age = age;
59 }
60
61 public float getSalary() {
62 return salary;
63 }
64
65 public void setSalary(float salary) {
66 this.salary = salary;
67 }
68
69 @Override
70 public String toString() {//方便查看员工信息
71 return "员工号：" + id +"\t姓名：" + name + "\t性别：" + sex + "\t年龄：" + age + "\t工资：" + salary;
72 }
73
74
75 }
功能实现：
1 package staffSystem;
2
3 import java.util.ArrayList;
4 import java.util.Scanner;
5
6 /**
7 * 对象模型类
8 *
9 * @author 123
10 *
11 */
12 public class Model {
13
14 static ArrayList<Staff> sta = new ArrayList<>();
15 static {// 初始化
16 Staff sta1 = new Staff(1, "张三", "女", 18, 5000);
17 Staff sta2 = new Staff(2, "李四", "男", 23, 8000);
18 Staff sta3 = new Staff(3, "王五", "男", 26, 6500);
19 // Staff sta4 = new Staff(67, "李5四", "男", 23, 56);
20 // Staff sta5 = new Staff(7, "王7五", "男", 26, 12000);
21 sta.add(sta1);
22 sta.add(sta2);
23 sta.add(sta3);
24 // sta.add(sta4);
25 // sta.add(sta5);
26 }
27
28 /**
29 * 查询员工信息
30 */
31 public static void search() {
32 boolean t = true;
33 while (t) {
34 System.out.println("**********员工信息表**********");
35 for (int i = 0; i < sta.size(); i++) {
36 System.out.println("工号：" + sta.get(i).getId() + " \t" + "姓名：" + sta.get(i).getName());
37 }
38 System.out.println("请选择查询员工方式：");
39 System.out.println("1--按员工姓名查找 2--按员工工号查找 3--返回主界面");
40 Scanner scan1 = new Scanner(System.in);
41 int n = scan1.nextInt();
42 if (n == 1) {
43 int a = 0;
44 System.out.println("请输入要查询的员工名字：");
45 String name = scan1.next();
46 for (int i = 0; i < sta.size(); i++) {
47 if (name.equals(sta.get(i).getName())) {
48 System.out.println(sta.get(i));
49 System.out.println("查询成功！");
50 System.out.println();
51 System.out.println("1--继续查询 2--返回主界面");
52 int y1 = scan1.nextInt();
53 if (y1 == 1) {
54 a = 1;
55 } else if (y1 == 2) {
56 a = 1;
57 t = false;
58 } else {
59 System.out.println("输入不合法！已退出查询！");
60 System.out.println("******************************");
61 a = 1;
62 t = false;
63 }
64 }
65 }
66 if (a == 0) {
67 Surface.search1();
68 int n1 = scan1.nextInt();
69 while (true) {
70 if (n1 == 1) {
71 break;
72 } else if (n1 == 2) {
73 t = false;
74 break;
75 } else {
76 System.out.println("输入错误！请重新输入！");
77 n1 = scan1.nextInt();
78 }
79 }
80 }
81 } else if (n == 2) {
82 int a1 = 0;
83 System.out.println("请输入要查询的员工工号：");
84 int id = scan1.nextInt();
85 for (int i = 0; i < sta.size(); i++) {
86 if (id == sta.get(i).getId()) {
87 System.out.println(sta.get(i));
88 System.out.println("查询成功！");
89 System.out.println();
90 System.out.println("1--继续查询 2--返回主界面");
91 int y = scan1.nextInt();
92 if (y == 1) {
93 a1 = 1;
94 } else if (y == 2) {
95 a1 = 1;
96 t = false;
97 } else {
98 System.out.println("输入不合法！已退出查询！");
99 System.out.println("******************************");
100 a1 = 1;
101 t = false;
102 }
103 }
104 }
105 if (a1 == 0) {
106 Surface.search1();
107 int n1 = scan1.nextInt();
108 while (true) {
109 if (n1 == 1) {
110 break;
111 } else if (n1 == 2) {
112 t = false;
113 break;
114 } else {
115 System.out.println("输入错误！请重新输入！");
116 n1 = scan1.nextInt();
117 }
118 }
119 }
120 } else if (n == 3) {
121 t = false;
122 } else {
123 System.out.println("输入不合法！请重新输入！");
124 System.out.println("******************************");
125 }
126 }
127 }
128
129 /**
130 * 添加员工信息
131 */
132 public static void addEmp() {
133 boolean t = true;
134 while (t) {
135 Scanner scan3 = new Scanner(System.in);
136
137 System.out.print("请输入员工工号：");
138 int addid = scan3.nextInt();
139 System.out.print("请输入员工姓名：");
140 String addname = scan3.next();
141 System.out.print("请输入员工性别：");
142 String addsex = scan3.next();
143 System.out.print("请输入员工年龄：");
144 int addage = scan3.nextInt();
145 System.out.print("请输入员工工资：");
146 float addsalary = scan3.nextFloat();
147
148 boolean b = true;
149 for (int i = 0; i < sta.size(); i++) {
150 if (sta.get(i).getId() == addid) {
151 b = false;
152 break;
153 }
154 }
155 if (b) {
156 Staff staff = new Staff();
157 staff.setId(addid);
158 staff.setName(addname);
159 staff.setSex(addsex);
160 staff.setAge(addage);
161 staff.setSalary(addsalary);
162 sta.add(staff);
163 System.out.println("员工添加成功！");
164 System.out.println("1--继续添加 2--返回主界面");
165 System.out.println("******************************");
166 int y = scan3.nextInt();
167 if (y == 1) {
168
169 } else if (y == 2) {
170 t = false;
171 } else {
172 System.out.println("输入不合法！已退出添加！");
173 System.out.println("******************************");
174 t = false;
175 }
176 } else {
177 System.out.println("添加失败！请不要重复添加！");
178 System.out.println("1--继续添加 2--返回主界面");
179 System.out.println("******************************");
180 int y1 = scan3.nextInt();
181 if (y1 == 1) {
182
183 } else if (y1 == 2) {
184 t = false;
185 } else {
186 System.out.println("输入不合法！已退出添加！");
187 System.out.println("******************************");
188 t = false;
189 }
190 }
191 }
192 }
193
194 /**
195 * 删除员工信息
196 */
197 public static void remove() {
198 boolean t = true;
199 while (t) {
200 System.out.println("**********员工信息表**********");
201 for (int i = 0; i < sta.size(); i++) {
202 System.out.println("工号：" + sta.get(i).getId() + "\t" + "姓名：" + sta.get(i).getName());
203 }
204 System.out.println("请选择要删除的员工工号：");
205 Scanner scan4 = new Scanner(System.in);
206 int id = scan4.nextInt();
207 for (int i = 0; i < sta.size(); i++) {
208 if (sta.get(i).getId() == id) {
209 System.out.println("是否删除此人？");
210 System.out.println("1--是 2--否 3--返回主界面");
211 int a = scan4.nextInt();
212 if (a == 1) {
213 sta.remove(i);
214 System.out.println("删除成功!!");
215 System.out.println("1--继续删除 2--返回主界面");
216 System.out.println("******************************");
217 int y = scan4.nextInt();
218 while (true) {
219 if (y == 1) {
220 break;
221 } else if (y == 2) {
222 t = false;
223 break;
224 } else {
225 System.out.println("输入错误，请重新输入！");
226 }
227 }
228 break;
229 } else if (a == 2) {
230 System.out.println("已取消删除!");
231 System.out.println("********************");
232 break;
233 } else if (a == 3) {
234 t = false;
235 break;
236 } else {
237 System.out.println("输入错误！请重新输入!");
238 System.out.println("********************");
239 i--;
240 }
241 } else if (i == sta.size() - 1) {
242 System.out.println("输入工号错误，没有此员工！");
243 System.out.println("1--重新输入 2--返回主界面");
244 System.out.println("******************************");
245 int a1 = scan4.nextInt();
246 if (a1 == 1) {
247
248 } else if (a1 == 2) {
249 t = false;
250 } else {
251 System.out.println("输入错误！已退出删除程序");
252 t = false;
253 }
254 }
255 }
256 }
257 }
258
259 /**
260 * 修改员工信息
261 */
262 public static void setEmp() {
263 boolean t = true;
264 while (t) {
265 System.out.println("**********员工信息表**********");
266 for (int i = 0; i < sta.size(); i++) {
267 System.out.println("工号：" + sta.get(i).getId() + "\t" + "姓名：" + sta.get(i).getName());
268 }
269 System.out.println("请选择要修改的员工工号：");
270 Scanner scan5 = new Scanner(System.in);
271 int id = scan5.nextInt();
272 for (int i = 0; i < sta.size(); i++) {
273 if (sta.get(i).getId() == id) {
274 int w = 0;
275 System.out.println("是否修改此人？");
276 System.out.println("1--是 2--否 3--返回主界面");
277 int a = scan5.nextInt();
278 if (a == 1) {
279
280 System.out.print("请输入员工工号：");
281 int addid = scan5.nextInt();
282 System.out.print("请输入员工姓名：");
283 String addname = scan5.next();
284 System.out.print("请输入员工性别：");
285 String addsex = scan5.next();
286 System.out.print("请输入员工年龄：");
287 int addage = scan5.nextInt();
288 System.out.print("请输入员工工资：");
289 float addsalary = scan5.nextFloat();
290
291 for (int j = 0; j < sta.size(); j++) {
292 if (j == i) {
293 continue;
294 }
295 if (addid == sta.get(j).getId()) {
296 w = 1;
297 }
298 }
299 if (w == 0) {
300 sta.remove(i);
301 Staff staff = new Staff();
302 staff.setId(addid);
303 staff.setName(addname);
304 staff.setSex(addsex);
305 staff.setAge(addage);
306 staff.setSalary(addsalary);
307 sta.add(i, staff);
308 System.out.println("员工修改成功！");
309 System.out.println("1--继续修改 2--返回主界面");
310 System.out.println("******************************");
311 int y = scan5.nextInt();
312 if (y == 1) {
313 break;
314 } else if (y == 2) {
315 t = false;
316 break;
317 } else {
318 System.out.println("输入不合法！已退出修改！");
319 System.out.println("******************************");
320 t = false;
321 break;
322 }
323 }
324
325 } else if (a == 2) {
326 System.out.println("已取消修改!");
327 System.out.println("********************");
328 break;
329 } else if (a == 3) {
330 t = false;
331 break;
332 } else {
333 System.out.println("输入错误！请重新输入!");
334 System.out.println("********************");
335 break;
336 }
337
338 if (w == 1) {
339 System.out.println("工号重复，请重新输入！");
340 System.out.println("*************************");
341 break;
342 }
343 } else if (i == sta.size() - 1) {
344 System.out.println("输入工号错误，没有此员工！");
345 System.out.println("1--重新输入 2--返回主界面");
346 System.out.println("******************************");
347 int a1 = scan5.nextInt();
348 if (a1 == 1) {
349
350 } else if (a1 == 2) {
351 t = false;
352 } else {
353 System.out.println("输入错误！已退出修改程序");
354 t = false;
355 }
356 }
357 }
358 }
359 }
360
361 /**
362 * 对员工进行排序
363 */
364 public static void sort() {
365 boolean t = true;
366 while (t) {
367 System.out.println("请选择要排序的方式：");
368 System.out.println("1--按工号进行排序 2--按工资进行排序 3--返回主界面");
369 System.out.println("******************************");
370 Scanner scan6 = new Scanner(System.in);
371 int n = scan6.nextInt();
372 if (n == 1) {
373 System.out.println("工号从小到大排序:");
374 System.out.println("**********员工信息表**********");
375 Staff staff = new Staff();
376
377 for (int i = 0; i < sta.size() - 1; i++) {// 按照工号从小到大排序
378 int min = sta.get(i).getId();
379 for (int x = i + 1; x < sta.size(); x++) {
380 if (sta.get(x).getId() < min) {
381 int k = 0;
382 for (int j = 0; j < x; j++) {
383 if (sta.get(j).getId() == min) {
384 k = j;
385 break;
386 }
387 }
388 staff = sta.get(k);
389 sta.set(k, sta.get(x));
390 sta.set(x, staff);
391 }
392 }
393 }
394 for (int i = 0; i < sta.size(); i++) {
395 System.out.println(sta.get(i));
396 }
397 System.out.println();
398 System.out.println("员工排序成功！");
399 System.out.println("1--继续排序 2--返回主界面");
400 System.out.println("******************************");
401 int y1 = scan6.nextInt();
402 while (true) {
403 if (y1 == 1) {
404 break;
405 } else if (y1 == 2) {
406 t = false;
407 break;
408 } else {
409 System.out.println("输入错误，请重新输入！");
410 }
411 }
412 } else if (n == 2) {
413 System.out.println("工资从小到大排序:");
414 System.out.println("**********员工信息表**********");
415 Staff staff = new Staff();
416 for (int i = 0; i < sta.size() - 1; i++) {// 按照工资从小到大排序
417 for (int x = 0; x < sta.size() - 1 - i; x++) {
418 if (sta.get(x).getSalary() > sta.get(x + 1).getSalary()) {// 冒泡排序
419 staff = sta.get(x);
420 sta.set(x, sta.get(x + 1));
421 sta.set(x + 1, staff);
422 }
423 }
424 }
425 for (int i = 0; i < sta.size(); i++) {
426 System.out.println(sta.get(i));
427 }
428 System.out.println();
429 System.out.println("员工排序成功！");
430 System.out.println("1--继续排序 2--返回主界面");
431 System.out.println("******************************");
432 int y = scan6.nextInt();
433 while (true) {
434 if (y == 1) {
435 break;
436 } else if (y == 2) {
437 t = false;
438 break;
439 } else {
440 System.out.println("输入错误，请重新输入！");
441 }
442 }
443 } else if (n == 3) {
444 t = false;
445 } else {
446 System.out.println("输入错误！请重新输入!");
447 System.out.println();
448 }
449
450 }
451 }
452
453 }
View Code
输出结果：
标签：Java,sta,int,改查,System,员工,println,else,out 来源： https://www.cnblogs.com/ybw9296-blog/p/16488255.html