diff --git "a/work/com/java/minxi/java_20240514/java_2301_\345\215\242\346\257\224\344\274\246_2344310125/Ha.java" "b/work/com/java/minxi/java_20240514/java_2301_\345\215\242\346\257\224\344\274\246_2344310125/Ha.java"
new file mode 100644
index 0000000000000000000000000000000000000000..bfed3f0f405b443ca1c2706a09d692adb16a7d35
--- /dev/null
+++ "b/work/com/java/minxi/java_20240514/java_2301_\345\215\242\346\257\224\344\274\246_2344310125/Ha.java"
@@ -0,0 +1,97 @@
+package com.java.minxi.java_20240514.java_2301_卢比伦_2344310125;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.LinkedList;
+
+public class Ha {
+    public static void main(String[] args) {
+        ArrayList<Object> objects1 = new ArrayList<>();
+        LinkedList<Object> objects2 = new LinkedList<>();
+        objects1.add("man");
+        objects1.add("what ");
+        objects1.add("can");
+        objects1.add("I");
+        objects1.add("say");
+        System.out.println(objects1);
+        objects2.add(1);
+        objects2.add(2);
+        objects2.add(3);
+        objects2.add(4);
+        objects2.add(5);
+        System.out.println(objects2);
+        if(!objects1.contains("Target")){
+            System.out.println("没有要的东东");
+        }else{
+            System.out.println(objects1.indexOf("Target"));
+        }
+        objects2.set(0,42);
+        System.out.println("==================================");
+        ArrayList<Object> objects2_1 = new ArrayList<>();
+        LinkedList<Object> objects2_2 = new LinkedList<>();
+        objects2_1.add("man");
+        objects2_1.add("what ");
+        objects2_1.add("can");
+        objects2_1.add("I");
+        objects2_1.add("say");
+        System.out.println(objects2_1);
+        objects2_2.add(1);
+        objects2_2.add(2);
+        objects2_2.add(3);
+        objects2_2.add(4);
+        objects2_2.add(5);
+        System.out.println(objects2_2);
+        objects2_1.replaceAll(e->e.equals("old") ? "new":e);
+        objects2_2.replaceAll(e->e.equals(10)?20:e);
+        System.out.println("==================================");
+        ArrayList<Object> objects3_1 = new ArrayList<>();
+        LinkedList<Object> objects3_2 = new LinkedList<>();
+        objects3_1.add("man");
+        objects3_1.add("what ");
+        objects3_1.add("can");
+        objects3_1.add("I");
+        objects3_1.add("say");
+        System.out.println(objects3_1);
+        objects3_2.add(1);
+        objects3_2.add(2);
+        objects3_2.add(3);
+        objects3_2.add(4);
+        objects3_2.add(5);
+        System.out.println(objects3_2);
+        Collections.reverse(objects3_1);
+        Collections.reverse(objects3_2);
+        System.out.println("==================================");
+        ArrayList<Object> objects4_1 = new ArrayList<>();
+        LinkedList<Object> objects4_2 = new LinkedList<>();
+        objects4_1.add("man");
+        objects4_1.add("what ");
+        objects4_1.add("can");
+        objects4_1.add("I");
+        objects4_1.add("say");
+        System.out.println(objects4_1);
+//        Collections.sort(objects4_1);
+        objects4_2.add(1);
+        objects4_2.add(2);
+        objects4_2.add(3);
+        objects4_2.add(4);
+        objects4_2.add(5);
+        System.out.println(objects4_2);
+
+//        Collections.sort(objects4_2);
+
+
+
+    }
+
+
+
+
+
+
+
+
+
+
+
+}
diff --git "a/work/com/java/minxi/java_20240514/java_2301_\345\215\242\346\257\224\344\274\246_2344310125/MapMain.java" "b/work/com/java/minxi/java_20240514/java_2301_\345\215\242\346\257\224\344\274\246_2344310125/MapMain.java"
new file mode 100644
index 0000000000000000000000000000000000000000..242de5adbd1b14b63877d212b518b662d172f89a
--- /dev/null
+++ "b/work/com/java/minxi/java_20240514/java_2301_\345\215\242\346\257\224\344\274\246_2344310125/MapMain.java"
@@ -0,0 +1,49 @@
+package com.java.minxi.java_20240514.java_2301_卢比伦_2344310125;
+
+import java.util.*;
+
+public class MapMain {
+    public static void main(String[] args) {
+        //创建和添加键值对
+        HashMap<String, Integer> hashMap = new HashMap<>();
+        hashMap.put("a",1);
+        hashMap.put("b",2);
+        hashMap.put("c",3);
+        System.out.println(hashMap);
+        System.out.println("============================");
+
+        //获取和打印值
+        System.out.println(hashMap.get("a"));
+        System.out.println("============================");
+
+        //检查
+        System.out.println(hashMap.containsKey("b"));
+        System.out.println(hashMap.containsKey("v"));
+        System.out.println("============================");
+        //键遍历
+        System.out.println(hashMap.keySet());
+        System.out.println("============================");
+        //值遍历
+        System.out.println(hashMap.values());
+        System.out.println("============================");
+        //键值对遍历
+        System.out.println(hashMap.entrySet());
+        System.out.println("============================");
+        //移除键值对
+        System.out.println(hashMap);
+        hashMap.remove("b",2);
+        System.out.println(hashMap);
+        System.out.println("============================");
+        //Map的大小
+        System.out.println(hashMap);
+        System.out.println(hashMap.size());
+        System.out.println("============================");
+        //使用泛型
+        HashMap<Object, String> objectObjectHashMap = new HashMap<>();
+        objectObjectHashMap.put(3,"e");
+        objectObjectHashMap.put("4","f");
+        objectObjectHashMap.put(5.2,"g");
+        System.out.println(objectObjectHashMap);
+
+    }
+}
diff --git "a/work/com/java/minxi/java_20240514/java_2301_\345\215\242\346\257\224\344\274\246_2344310125/SetMain.java" "b/work/com/java/minxi/java_20240514/java_2301_\345\215\242\346\257\224\344\274\246_2344310125/SetMain.java"
new file mode 100644
index 0000000000000000000000000000000000000000..1f4688c8fb46127285297d1846bef79dc1399e97
--- /dev/null
+++ "b/work/com/java/minxi/java_20240514/java_2301_\345\215\242\346\257\224\344\274\246_2344310125/SetMain.java"
@@ -0,0 +1,70 @@
+package com.java.minxi.java_20240514.java_2301_卢比伦_2344310125;
+
+import java.util.*;
+
+public class SetMain {
+
+    public static void main(String[] args) {
+        //创建
+        HashSet<String> hashSet = new HashSet<>();
+        hashSet.add("a");
+        hashSet.add("b");
+        hashSet.add("c");
+        hashSet.add("d");
+        hashSet.add("e");
+        System.out.println("1:"+hashSet);
+        System.out.println("============================");
+        //检查
+        System.out.println("2:"+hashSet.contains("d"));
+        System.out.println("============================");
+        //移除
+        System.out.println(hashSet);
+        System.out.println(hashSet.remove("d"));
+        System.out.println("3:"+hashSet);
+        System.out.println("============================");
+        //大小
+        System.out.println("4:"+hashSet.size());
+        System.out.println("============================");
+        //遍历
+        Iterator<String> iterator = hashSet.iterator();
+        while (iterator.hasNext()){
+            System.out.println(iterator.next());
+        }
+        System.out.println("============================");
+        //转换为数组
+        String[] array = hashSet.toArray(new String[0]);
+        for (String ar : array) {
+            System.out.println(ar);
+        }
+        System.out.println("============================");
+        //并集
+        HashSet<String> h1 = new HashSet<>();
+        h1.add("1");
+        h1.add("2");
+        HashSet<String> h2 = new HashSet<>();
+        h2.add("2");
+        h2.add("3");
+        HashSet<String> hashSet2 = new HashSet<>();
+        hashSet2.addAll(h1);
+        hashSet2.addAll(h2);
+        System.out.println(hashSet2);
+        System.out.println("============================");
+        //交集
+        HashSet<String> hashSet3 = new HashSet<>();
+        hashSet3.addAll(h1);
+        hashSet3.retainAll(h2);
+        System.out.println(hashSet3);
+        System.out.println("============================");
+        //差集
+        HashSet<String> hashSet4 = new HashSet<>();
+        hashSet4.addAll(h1);
+        hashSet4.removeAll(h2);
+        System.out.println(hashSet4);
+
+
+
+
+
+
+    }
+}