day7

.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,14 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="AliAccessStaticViaInstance" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="AliArrayNamingShouldHaveBracket" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="AliControlFlowStatementWithoutBraces" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="AliDeprecation" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="AliEqualsAvoidNull" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="AliLongLiteralsEndingWithLowercaseL" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="AliMissingOverrideAnnotation" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="AliWrapperTypeEquality" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="MapOrSetKeyShouldOverrideHashCodeEquals" enabled="true" level="WARNING" enabled_by_default="true" />
+  </profile>
+</component>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

Student.java

@@ -1,101 +0,0 @@
-import java.util.HashMap;
-
-/**
- * @Classname Student
- * @Description TODO
- * @Date 2024/7/25 上午9:07
- * @Created by 杨旭飞
- */
-
-public class Student {
-
-    /**
-     * 学生编号
-     */
-    private Integer stuId;
-    /**
-     * 学生姓名
-     */
-    private String stuName;
-    /**
-     * 年龄
-     */
-    private Integer stuAge;
-    /**
-     * 学生性别
-     */
-    private String stuSex;
-    /**
-     * 学生成绩
-     */
-    private Integer stuScore;
-
-
-    public Integer getStuId() {
-        return stuId;
-    }
-
-    public void setStuId(Integer stuId) {
-        this.stuId = stuId;
-    }
-
-    public String getStuName() {
-        return stuName;
-    }
-
-    public void setStuName(String stuName) {
-        this.stuName = stuName;
-    }
-
-    public Integer getStuAge() {
-        return stuAge;
-    }
-
-    public void setStuAge(Integer stuAge) {
-        this.stuAge = stuAge;
-    }
-
-    public String getStuSex() {
-        return stuSex;
-    }
-
-    public void setStuSex(String stuSex) {
-        this.stuSex = stuSex;
-    }
-
-    public Integer getStuScore() {
-        return stuScore;
-    }
-
-    public void setStuScore(Integer stuScore) {
-        this.stuScore = stuScore;
-    }
-
-    public Student() {
-    }
-
-    public Student(Integer stuId, String stuName, Integer stuAge, String stuSex, Integer stuScore) {
-        this.stuId = stuId;
-        this.stuName = stuName;
-        this.stuAge = stuAge;
-        this.stuSex = stuSex;
-        this.stuScore = stuScore;
-    }
-
-
-    public static void main(String[] args) {
-        //      创建HashMap对象。（10 分）
-        HashMap<Integer, String> hashMap = new HashMap<>();
-//      创建两个学生对象。（10 分）
-        String nameone = "yangpeng";
-        String nametwo = "yangxufei";
-//      保存到HashMap集合中，键为学生编号，值为学生对象。（30 分）
-        String nameonename = hashMap.put(1, nameone);
-        String nametwoname = hashMap.put(2, nametwo);
-
-//      三种方式遍历输出集合中的元素信息。（30 分）
-        System.out.println(hashMap);
-        System.out.println(nameonename);
-        System.out.println(nametwoname);
-    }
-}

yangpeng-modules/yangpeng-student/src/main/java/com/bwie/student/controller/StuController.java

@@ -1,5 +1,6 @@
 package com.bwie.student.controller;
 
+import com.bwie.common.domain.Student;
 import com.bwie.student.StudentApplication;
 import com.bwie.student.service.impl.StudentService;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -11,6 +12,9 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
 
 /**
  * @Classname StuController
@@ -27,18 +31,33 @@ public class StuController {
 
     public void test() {
 //      创建HashMap对象。（10 分）
-        HashMap<Integer, String> hashMap = new HashMap<>();
+        HashMap<Integer, Student> hashMap = new HashMap<>();
 //      创建两个学生对象。（10 分）
-        String nameone = "yangpeng";
+        Student student1 = new Student(1, "yangpeng", 18, "男", 100);
-        String nametwo = "yangxufei";
+        Student student2 = new Student(2, "yangxufei", 18, "男", 100);
 //      保存到HashMap集合中，键为学生编号，值为学生对象。（30 分）
-        String nameonename = hashMap.put(1, nameone);
+         hashMap.put(student1.getStuId(), student1);
-        String nametwoname = hashMap.put(2, nametwo);
+         hashMap.put(student2.getStuId(), student2);
 
 //      三种方式遍历输出集合中的元素信息。（30 分）
-        System.out.println(hashMap);
+
-        System.out.println(nameonename);
+        System.out.println("第一种遍历方式");
-        System.out.println(nametwoname);
+        for (Map.Entry<Integer, Student> entry : hashMap.entrySet()) {
+            System.out.println(entry.getKey() + ":" + entry.getValue());
+        }
+
+        System.out.println("第二种遍历方式");
+        for (Integer key : hashMap.keySet()) {
+            System.out.println(key + ":" + hashMap.get(key));
+        }
+        System.out.println("第三种遍历方式");
+        Set<Integer> set = hashMap.keySet();
+        Iterator<Integer> iterator = set.iterator();
+        while (iterator.hasNext()) {
+            Integer key = iterator.next();
+            System.out.println(key + ":" + hashMap.get(key));
+        }
+
     }