commit 71046e9b83954b7999df6d718548be6ffdc32d7e
Author: 张腾 <3467447354@qq.com>
Date: Thu Aug 8 09:11:49 2024 +0800
8.8
diff --git a/.idea/.gitignore b/.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/
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
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diff --git a/.idea/misc.xml b/.idea/misc.xml
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diff --git a/.idea/modules.xml b/.idea/modules.xml
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diff --git a/out/production/zg6-day19/com/bwie/list/Demo01.class b/out/production/zg6-day19/com/bwie/list/Demo01.class
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diff --git a/out/production/zg6-day19/com/bwie/pojo/Student.class b/out/production/zg6-day19/com/bwie/pojo/Student.class
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diff --git a/src/com/bwie/list/Demo01.java b/src/com/bwie/list/Demo01.java
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+++ b/src/com/bwie/list/Demo01.java
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+package com.bwie.list;
+
+import com.bwie.pojo.Student;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * @Author：张腾
+ * @Package：com.bwie.list
+ * @Project：zg6-day19
+ * @name：Demo01
+ * @Date：2024/8/8 8:38
+ */
+public class Demo01 {
+
+ public static void main(String[] args) {
+ List list = new ArrayList<>();
+ list.add(new Student(1,"张三","语文",89.5));
+ list.add(new Student(2,"张三","数学",90.0));
+ list.add(new Student(3,"李四","语文",88.5));
+ list.add(new Student(4,"李四","数学",68.0));
+ list.add(new Student(5,"王五","语文",78.0));
+ list.add(new Student(6,"王五","数学",98.0));
+ list.stream()
+ .collect(Collectors.groupingBy(Student::getName,
+ Collectors.averagingDouble(Student::getScore)))
+ .forEach((stu,score) -> System.out.println("姓名:"+stu+"平均分:"+score));
+ }
+}
diff --git a/src/com/bwie/pojo/Student.java b/src/com/bwie/pojo/Student.java
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+++ b/src/com/bwie/pojo/Student.java
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+package com.bwie.pojo;
+
+/**
+ * @Author：张腾
+ * @Package：com.bwie.pojo
+ * @Project：zg6-day19
+ * @name：Student
+ * @Date：2024/8/8 8:39
+ */
+public class Student {
+
+ private Integer id;
+ private String name;
+ private String socket;
+ private Double score;
+
+ public Student(Integer id, String name, String socket, Double score) {
+ this.id = id;
+ this.name = name;
+ this.socket = socket;
+ this.score = score;
+ }
+
+ @Override
+ public String toString() {
+ return "编号:" + id +
+ ", 姓名:" + name + '\'' +
+ ", 科目:" + socket + '\'' +
+ ", 分数:" + score;
+ }
+
+ public Integer getId() {
+ return id;
+ }
+
+ public void setId(Integer id) {
+ this.id = id;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+ public String getSocket() {
+ return socket;
+ }
+
+ public void setSocket(String socket) {
+ this.socket = socket;
+ }
+
+ public Double getScore() {
+ return score;
+ }
+
+ public void setScore(Double score) {
+ this.score = score;
+ }
+
+ public Student() {
+ }
+}
diff --git a/zg6-day19.iml b/zg6-day19.iml
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