day7日考

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/inspectionProfiles/Project_Default.xml

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+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="JavaDoc" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="TOP_LEVEL_CLASS_OPTIONS">
+        <value>
+          <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+          <option name="REQUIRED_TAGS" value="" />
+        </value>
+      </option>
+      <option name="INNER_CLASS_OPTIONS">
+        <value>
+          <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+          <option name="REQUIRED_TAGS" value="" />
+        </value>
+      </option>
+      <option name="METHOD_OPTIONS">
+        <value>
+          <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+          <option name="REQUIRED_TAGS" value="@return@param@throws or @exception" />
+        </value>
+      </option>
+      <option name="FIELD_OPTIONS">
+        <value>
+          <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+          <option name="REQUIRED_TAGS" value="" />
+        </value>
+      </option>
+      <option name="IGNORE_DEPRECATED" value="false" />
+      <option name="IGNORE_JAVADOC_PERIOD" value="true" />
+      <option name="IGNORE_DUPLICATED_THROWS" value="false" />
+      <option name="IGNORE_POINT_TO_ITSELF" value="false" />
+      <option name="myAdditionalJavadocTags" value="date" />
+    </inspection_tool>
+  </profile>
+</component>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Zg6-day7.iml" filepath="$PROJECT_DIR$/Zg6-day7.iml" />
+    </modules>
+  </component>
+</project>

Zg6-day7.iml

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+<?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>

src/com/zt/pojo/Student.java

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+package com.zt.pojo;
+
+/**
+ * @Author：张腾
+ * @Package：com.zt.pojo
+ * @Project：Zg6-day7
+ * @name：Student
+ * @Date：2024/7/25 8:37
+ */
+public class Student {
+    private Integer id;
+    private String name;
+    private Integer age;
+    private String sex;
+    private Integer scope;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    @Override
+    public String toString() {
+        return "Student{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                ", age=" + age +
+                ", sex='" + sex + '\'' +
+                ", scope=" + scope +
+                '}';
+    }
+
+    public Student(Integer id, String name, Integer age, String sex, Integer scope) {
+        this.id = id;
+        this.name = name;
+        this.age = age;
+        this.sex = sex;
+        this.scope = scope;
+    }
+
+    public Student() {
+    }
+
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+
+    public String getSex() {
+        return sex;
+    }
+
+    public void setSex(String sex) {
+        this.sex = sex;
+    }
+
+    public Integer getScope() {
+        return scope;
+    }
+
+    public void setScope(Integer scope) {
+        this.scope = scope;
+    }
+}

src/com/zt/test/StudentTest.java

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+package com.zt.test;
+
+import com.zt.pojo.Student;
+
+import java.util.*;
+
+/**
+ * @Author：张腾
+ * @Package：com.zt.test
+ * @Project：Zg6-day7
+ * @name：StudentTest
+ * @Date：2024/7/25 8:39
+ */
+public class StudentTest {
+
+     static HashMap<Integer, Student> map = new HashMap<>();
+
+     static {
+        Student zhSan = new Student(1,"张三", 19, "男", 89);
+        Student liSi = new Student(2,"李四", 23, "男", 98);
+        map.put(zhSan.getId(),zhSan);
+        map.put(liSi.getId(),liSi);
+    }
+    public static void main(String[] args) {
+        System.out.println("=====第一种方式=====");
+        map.forEach((integer, student) -> {
+            System.out.println("键:"+integer+"值:"+student);
+        });
+
+        System.out.println("=====第二种方式=====");
+        Set<Integer> integers = map.keySet();
+        for (Integer id : integers) {
+            Student student = map.get(id);
+            System.out.println("键:"+id+"值:"+student);
+        }
+
+        System.out.println("=====第三种方式=====");
+        Set<Map.Entry<Integer, Student>> entries = map.entrySet();
+        for (Map.Entry<Integer, Student> entry : entries) {
+            Integer key = entry.getKey();
+            Student value = entry.getValue();
+            System.out.println("键:"+key+"值:"+value);
+        }
+    }
+}