2022/10/14 18:32

.idea/modules.xml

@@ -7,8 +7,10 @@
       <module fileurl="file://$PROJECT_DIR$/Week4/Week4.iml" filepath="$PROJECT_DIR$/Week4/Week4.iml" />
       <module fileurl="file://$PROJECT_DIR$/Week5/Week5.iml" filepath="$PROJECT_DIR$/Week5/Week5.iml" />
       <module fileurl="file://$PROJECT_DIR$/Week6/Week6.iml" filepath="$PROJECT_DIR$/Week6/Week6.iml" />
+      <module fileurl="file://$PROJECT_DIR$/Week7/Week7.iml" filepath="$PROJECT_DIR$/Week7/Week7.iml" />
       <module fileurl="file://$PROJECT_DIR$/java_class.iml" filepath="$PROJECT_DIR$/java_class.iml" />
       <module fileurl="file://$PROJECT_DIR$/week1/week1.iml" filepath="$PROJECT_DIR$/week1/week1.iml" />
+      <module fileurl="file://$PROJECT_DIR$/work10/work10.iml" filepath="$PROJECT_DIR$/work10/work10.iml" />
       <module fileurl="file://$PROJECT_DIR$/work8/work8.iml" filepath="$PROJECT_DIR$/work8/work8.iml" />
       <module fileurl="file://$PROJECT_DIR$/work9/work9.iml" filepath="$PROJECT_DIR$/work9/work9.iml" />
     </modules>

Week7/Week7.iml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

Week7/src/cn/czyx007/DAO/StudentDAO.java

@@ -0,0 +1,8 @@
+package cn.czyx007.DAO;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/10/12 - 10:12
+ */
+public class StudentDAO {
+}

Week7/src/cn/czyx007/Driver.java

@@ -0,0 +1,82 @@
+package cn.czyx007;
+
+import cn.czyx007.VO.Result;
+import cn.czyx007.bean.Student;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/10/12 - 10:14
+ */
+public class Driver {
+    public static void main(String[] args) {
+        List<Student> studentList = inputFromKeyBoard();
+        List<Result> resultList = calculateProvince(studentList);
+        display(studentList, resultList);
+    }
+
+    public static List<Student> inputFromKeyBoard(){
+        List<Student> studentList = new ArrayList<>();
+        Scanner scanner = new Scanner(System.in);
+        String data = "";
+        while (!(data=scanner.nextLine()).equals("end")){
+            String[] stuArray = data.split(",|，");
+            studentList.add(new Student(stuArray[0], stuArray[1], stuArray[2], stuArray[3]));
+        }
+        return studentList;
+    }
+
+    public static int calculateByGender(List<Student> studentList, String gender){
+        int count=0;
+        for (Student student : studentList) {
+            if(student.getGender().equals(gender)){
+                count++;
+            }
+        }
+        return count;
+    }
+
+    public static List<Result> calculateProvince(List<Student> studentList){
+        List<Result> resultList = new ArrayList<>();
+        for (Student stu : studentList) {
+            String province = stu.getProvince();
+            String name = stu.getName();
+            int index = isProvinceExist(resultList, province);
+            if (index != -1) {
+                Result oldResult = resultList.get(index);
+                oldResult.setCount(oldResult.getCount() + 1);
+                oldResult.setNames(oldResult.getNames() + "," + name);
+                resultList.set(index, oldResult);
+            } else {
+                resultList.add(new Result(province, 1, name));
+            }
+        }
+        return resultList;
+    }
+
+    public static int isProvinceExist(List<Result> resultList, String province){
+        int index=-1;
+        for (int i = 0; i < resultList.size(); i++) {
+            Result result = resultList.get(i);
+            if (result.getProvince().equals(province)){
+                return i;
+            }
+        }
+        return index;
+    }
+
+    public static void display(List<Student> studentList, List<Result> resultList){
+        int totalCount = studentList.size();
+        int maleCount = calculateByGender(studentList, "男");
+        int femaleCount = calculateByGender(studentList, "女");
+        System.out.println("总人数："+totalCount);
+        System.out.println("其中男："+maleCount+"人，" + maleCount*100.0f/totalCount + "%，女："+femaleCount+"人，"+femaleCount*100.0f/totalCount+"%");
+        for (Result result : resultList) {
+            System.out.println(result);
+        }
+    }
+}
+

Week7/src/cn/czyx007/VO/Result.java

@@ -0,0 +1,53 @@
+package cn.czyx007.VO;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/10/12 - 10:13
+ */
+public class Result {
+    private String province;
+    private Integer count;
+    private String names;
+
+    public Result() {
+    }
+
+    public Result(String province, Integer count, String names) {
+        this.province = province;
+        this.count = count;
+        this.names = names;
+    }
+
+    public String getProvince() {
+        return province;
+    }
+
+    public void setProvince(String province) {
+        this.province = province;
+    }
+
+    public Integer getCount() {
+        return count;
+    }
+
+    public void setCount(Integer count) {
+        this.count = count;
+    }
+
+    public String getNames() {
+        return names;
+    }
+
+    public void setNames(String names) {
+        this.names = names;
+    }
+
+    @Override
+    public String toString() {
+        return "Result{" +
+                "province='" + province + '\'' +
+                ", count=" + count +
+                ", names='" + names + '\'' +
+                '}';
+    }
+}

Week7/src/cn/czyx007/bean/Student.java

@@ -0,0 +1,64 @@
+package cn.czyx007.bean;
+
+/**
+ * @author : 张宇轩
+ * @createTime : 2022/10/12 - 10:12
+ */
+public class Student {
+    private String id;
+    private String name;
+    private String gender;
+    private String province;
+
+    public Student() {
+    }
+
+    public Student(String id, String name, String gender, String province) {
+        this.id = id;
+        this.name = name;
+        this.gender = gender;
+        this.province = province;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getGender() {
+        return gender;
+    }
+
+    public void setGender(String gender) {
+        this.gender = gender;
+    }
+
+    public String getProvince() {
+        return province;
+    }
+
+    public void setProvince(String province) {
+        this.province = province;
+    }
+
+    @Override
+    public String toString() {
+        return "Student{" +
+                "id='" + id + '\'' +
+                ", name='" + name + '\'' +
+                ", gender='" + gender + '\'' +
+                ", province='" + province + '\'' +
+                '}';
+    }
+}

work10/src/Validate.java

@@ -0,0 +1,122 @@
+import java.util.Scanner;
+
+public class Validate {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        //学号，姓名，性别，手机，邮箱，固定电话
+        inputStudentID();
+        inputName();
+        inputGender();
+        inputPhoneNumber();
+        inputEmail();
+        inputLinePhoneNumber();
+    }
+
+    public static void inputStudentID() {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            System.out.println("请输入学号：");
+            String studentID = scanner.nextLine();
+            if (isStudentID(studentID)) {
+                System.out.println("格式正确！学号输入完毕");
+                return;
+            } else {
+                System.out.println("格式错误！请重新输入");
+            }
+        }
+    }
+
+    public static void inputName() {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            System.out.println("请输入姓名：");
+            String name = scanner.nextLine();
+            if (isName(name)) {
+                System.out.println("格式正确！姓名输入完毕");
+                return;
+            } else {
+                System.out.println("格式错误！请重新输入");
+            }
+        }
+    }
+
+    public static void inputGender() {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            System.out.println("请输入性别：");
+            String gender = scanner.nextLine();
+            if (isGender(gender)) {
+                System.out.println("格式正确！性别输入完毕");
+                return;
+            } else {
+                System.out.println("格式错误！请重新输入");
+            }
+        }
+    }
+
+    public static void inputPhoneNumber() {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            System.out.println("请输入手机号码：");
+            String phoneNumber = scanner.nextLine();
+            if (isPhoneNumber(phoneNumber)) {
+                System.out.println("格式正确！手机号码输入完毕");
+                return;
+            } else {
+                System.out.println("格式错误！请重新输入");
+            }
+        }
+    }
+
+    public static void inputEmail() {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            System.out.println("请输入邮箱：");
+            String email = scanner.nextLine();
+            if (isEmail(email)) {
+                System.out.println("格式正确！邮箱输入完毕");
+                return;
+            } else {
+                System.out.println("格式错误！请重新输入");
+            }
+        }
+    }
+
+    public static void inputLinePhoneNumber() {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            System.out.println("请输入固定电话：");
+            String linePhoneNumber = scanner.nextLine();
+            if (isLinePhoneNumber(linePhoneNumber)) {
+                System.out.println("格式正确！固定电话输入完毕");
+                return;
+            } else {
+                System.out.println("格式错误！请重新输入");
+            }
+        }
+    }
+
+    public static boolean isStudentID(String id) {
+        return id.matches("[0-9]*");
+    }
+
+    public static boolean isName(String name) {
+        return name.matches("[a-zA-Z]\\w{4,15}");
+    }
+
+    public static boolean isGender(String gender) {
+        return gender.matches("[\\u7537\\u5973]");
+    }
+
+    public static boolean isPhoneNumber(String phoneNumber) {
+        return phoneNumber.matches("1[358]\\d{9}");
+    }
+
+    public static boolean isEmail(String email) {
+        return email.matches("\\w[-\\w.+]*@([A-Za-z\\d][-A-Za-z\\d]+\\.)+[A-Za-z]{2,14}");
+    }
+
+    public static boolean isLinePhoneNumber(String linePhoneNumber) {
+        return linePhoneNumber.matches("(0\\d{2,3}\\-{0,1}){0,1}[1-9]\\d{6,7}");
+    }
+}

work10/src/cn/czyx007/DAO/StudentDAO.java

@@ -0,0 +1,35 @@
+package cn.czyx007.DAO;
+
+import cn.czyx007.bean.Student;
+
+import java.util.List;
+
+public interface StudentDAO {
+    /**
+     * 获取该学生的各科课程平均分
+     * @param student 某个学生
+     * @return 平均分
+     */
+    double getAverageScoreByStu(Student student);
+
+    /**
+     * 获取有该课程的所有学生的平均分
+     * @param studentList 所有学生
+     * @param course 特定课程
+     * @return 平均分
+     */
+    double getAverageScoreByCourse(List<Student> studentList, String course);
+
+    /**
+     * 显示学生所有信息
+     * @param studentList 所有学生
+     */
+    void displayByStu(List<Student> studentList);
+
+    /**
+     * 显示各课程所有信息
+     * @param studentList 所有学生
+     */
+    void displayByCourse(List<Student> studentList);
+
+}

work10/src/cn/czyx007/DAO/impl/StudentDAOImpl.java

@@ -0,0 +1,58 @@
+package cn.czyx007.DAO.impl;
+
+import cn.czyx007.DAO.StudentDAO;
+import cn.czyx007.bean.Student;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+public class StudentDAOImpl implements StudentDAO {
+    @Override
+    public double getAverageScoreByStu(Student student) {
+        double sum=0;
+        Map<String, Double> courseScore = student.getCourseScoreMap();
+        Set<String> courses = courseScore.keySet();
+        for (String cours : courses) {
+            sum+=courseScore.get(cours);
+        }
+        return sum/courses.size();
+    }
+
+    @Override
+    public double getAverageScoreByCourse(List<Student> studentList, String course) {
+        double sum=0;
+        int cnt=0;
+        for (Student student : studentList) {
+            if (student.getCourseScoreMap().containsKey(course)) {
+                sum += student.getCourseScore(course);
+                cnt++;
+            }
+        }
+        return sum/cnt;
+    }
+
+    @Override
+    public void displayByStu(List<Student> studentList) {
+        System.out.println("学号\t姓名\t性别\t平均分");
+        for (Student student : studentList) {
+            System.out.print(student);
+            System.out.printf("\t\t%.2f\n", getAverageScoreByStu(student));
+        }
+    }
+
+    @Override
+    public void displayByCourse(List<Student> studentList) {
+        Set<String> courses = new HashSet<>();
+        for (Student student : studentList) {
+            Map<String, Double> courseScoreMap = student.getCourseScoreMap();
+            Set<String> keys = courseScoreMap.keySet();
+            courses.addAll(keys);
+        }
+        System.out.println("课程\t平均分");
+        for (String cour : courses) {
+            System.out.println(cour + "\t" + getAverageScoreByCourse(studentList, cour));
+        }
+    }
+}

work10/src/cn/czyx007/Driver.java

@@ -0,0 +1,44 @@
+package cn.czyx007;
+
+import cn.czyx007.DAO.StudentDAO;
+import cn.czyx007.DAO.impl.StudentDAOImpl;
+import cn.czyx007.bean.Student;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+public class Driver {
+    private static StudentDAO studentDAO = new StudentDAOImpl();
+
+    public static void main(String[] args) {
+        List<Student> studentList = inputFromKeyBoard();
+        System.out.println("按学生统计：");
+        studentDAO.displayByStu(studentList);
+        System.out.println("按课程统计：");
+        studentDAO.displayByCourse(studentList);
+    }
+
+    public static List<Student> inputFromKeyBoard(){
+        List<Student> studentList = new ArrayList<>();
+        Scanner scanner = new Scanner(System.in);
+        String data = "";
+        System.out.println("请输入学生基本信息：");
+        while (!(data=scanner.nextLine()).equals("end")){
+            String[] stuArray = data.split(",|，");
+            studentList.add(new Student(stuArray[0], stuArray[1], stuArray[2]));
+        }
+
+        data = "";
+        System.out.println("请输入学生成绩：");
+        while (!(data=scanner.nextLine()).equals("end")){
+            String[] courseArray = data.split(",|，");
+            for (Student student : studentList) {
+                if (student.getId().equals(courseArray[0])) {
+                    student.setCourseScore(courseArray[1], Double.valueOf(courseArray[2]));
+                }
+            }
+        }
+        return studentList;
+    }
+}

work10/src/cn/czyx007/bean/Student.java

@@ -0,0 +1,62 @@
+package cn.czyx007.bean;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Student {
+    private String id;
+    private String name;
+    private String gender;
+    private Map<String, Double> courseScore;
+
+    public Student() {
+    }
+
+    public Student(String id, String name, String gender) {
+        this.id = id;
+        this.name = name;
+        this.gender = gender;
+        courseScore = new HashMap<>();
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getGender() {
+        return gender;
+    }
+
+    public void setGender(String gender) {
+        this.gender = gender;
+    }
+
+    public Map<String, Double> getCourseScoreMap() {
+        return courseScore;
+    }
+
+    public Double getCourseScore(String course) {
+        return courseScore.get(course);
+    }
+
+    public void setCourseScore(String course, Double score) {
+        courseScore.put(course, score);
+    }
+
+    @Override
+    public String toString() {
+        return id + "\t\t" + name + "\t" + gender;
+    }
+}

work10/work10.iml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>