标签：name System 学生 Student println 信息管理系统 sex out
1 package work_student_system;
2
3 public class Student {
4
5 private String name;
6 private String sex;
7 private int age;
8
9 public Student() {
10
11 }
12
13 public Student(String name, String sex, int age) {
14 this.name = name;
15 this.sex = sex;
16 this.age = age;
17 }
18
19 public String getName() {
20 return name;
21 }
22
23 public void setName(String name) {
24 this.name = name;
25 }
26
27 public String getSex() {
28 return sex;
29 }
30
31 public void setSex(String sex) {
32 this.sex = sex;
33 }
34
35 public int getAge() {
36 return age;
37 }
38
39 public void setAge(int age) {
40 this.age = age;
41 }
42
43 @Override
44 public String toString() {
45 return "Student [name=" + name + ", sex=" + sex + ", age=" + age + "]";
46 }
47
48 @Override
49 public int hashCode() {
50 final int prime = 31;
51 int result = 1;
52 result = prime * result + ((name == null) ? 0 : name.hashCode());
53 return result;
54 }
55
56 @Override
57 public boolean equals(Object obj) {
58 if (this == obj)
59 return true;
60 if (obj == null)
61 return false;
62 if (getClass() != obj.getClass())
63 return false;
64 Student other = (Student) obj;
65 if (name == null) {
66 if (other.name != null)
67 return false;
68 } else if (!name.equals(other.name))
69 return false;
70 return true;
71 }
72 }
1 package work_student_system;
2
3 import java.util.ArrayList;
4
5 public class Studentmanager {
6
7 private ArrayList<Student> list = new ArrayList<Student>();
8
9 public void add(Student student) {
10 list.add(student);
11 }
12
13 public void showAll() {
14 System.out.println();
15 System.out.println("学生信息列表：");
16 Student student;
17 for(Object obj : list) {
18 student=(Student)obj;
19 System.out.println(student);
20
21 }
22 }
23
24 public Student find(String name) {
25 Student s = new Student();
26 s.setName(name);
27
28 int index = list.indexOf(s);
29
30 if(index == -1) {
31 return null;
32 }else {
33 list.remove(index);
34 return (Student)list.get(index);
35 }
36 }
37
38 public Student set(String name,String sex,int age) {
39 Student s = new Student();
40 s.setName(name);
41 s.setSex(sex);
42 s.setAge(age);
43
44 int index = list.indexOf(s);
45 list.set(index, s);
46 return (Student)list.get(index);
47 }
48 }
1 package work_student_system;
2
3 import java.util.Scanner;
4
5 public class Test_student {
6
7 public static void main(String[] args) {
8
9 Scanner input = new Scanner(System.in);
10
11 int n;
12 String name;
13 String sex;
14 int age;
15 Student student;
16 String name0;
17
18 String u;
19 String p;
20
21 System.out.println("欢迎使用学生信息管理系统");
22 Studentmanager s =new Studentmanager();
23
24 while(true) {
25 System.out.println();
26 System.out.println("1.添加学生");
27 System.out.println("2.查询全部学生");
28 System.out.println("3.删除学生");
29 System.out.println("4.修改学生信息");
30 System.out.println("0.退出");
31 System.out.println();
32 System.out.print("请选择：");
33 n= input.nextInt();
34
35 switch(n) {
36 case 1:
37 System.out.println();
38 System.out.print("请输入学生姓名：");
39 name = input.next();
40 System.out.print("请输入学生性别：");
41 sex = input.next();
42 System.out.print("请输入学生年龄：");
43 age = input.nextInt();
44 System.out.println();
45 System.out.println("添加的学生信息为：[姓名："+name+",性别："+sex+",年龄："+age+"]");
46
47 student=new Student(name,sex,age);
48 s.add(student);
49 break;
50 case 2:
51 s.showAll();
52 break;
53 case 3:
54 System.out.println();
55 System.out.print("请输入要删除的学生姓名：");
56 name0 = input.next();
57
58 Student s1 = s.find(name0);
59
60 if(s1==null) {
61 System.out.println("没有找到");
62 }else {
63 System.out.println("删除成功");
64 }
65 break;
66 case 4:
67 System.out.println();
68 System.out.print("请输入学生姓名：");
69 name = input.next();
70 System.out.print("请输入学生性别：");
71 sex = input.next();
72 System.out.print("请输入学生年龄：");
73 age = input.nextInt();
74 System.out.println();
75 s.set(name, sex, age);
76 System.out.println("修改成功！学生信息为：[姓名："+name+",性别："+sex+",年龄："+age+"]");
77 break;
78 case 0:
79 System.out.println("程序结束！感谢使用。");
80 break;
81 }
82 break;
83 }
84 }
85 }
标签：name,System,学生,Student,println,信息管理系统,sex,out 来源： https://www.cnblogs.com/wangsihui/p/11944984.html
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