diff --git "a/work/com/java/minxi/java_202405012/java_2302_\347\216\213\345\274\200\347\244\276_2344310220/ArrayList.java" "b/work/com/java/minxi/java_202405012/java_2302_\347\216\213\345\274\200\347\244\276_2344310220/ArrayList.java"
new file mode 100644
index 0000000000000000000000000000000000000000..a4855f07b3dd8a6fcd9ff91f645ded5998d93205
--- /dev/null
+++ "b/work/com/java/minxi/java_202405012/java_2302_\347\216\213\345\274\200\347\244\276_2344310220/ArrayList.java"
@@ -0,0 +1,56 @@
+package com.java.minxi.java_202405012.java_2302_王开社_2344310220;
+
+import java.util.Collections;
+
+public class ArrayList<I extends Number> {
+    public static void main(String[] args) {
+        java.util.ArrayList<String> first = new java.util.ArrayList<String>();
+        /**添加元素**/
+        first.add("one");
+        first.add("tow");
+        first.add("old");
+        first.add("old");
+        first.add("five");
+        System.out.println("first:" + first);
+        /**在`ArrayList`中添加一个元素到列表的开头**/
+        first.add(0, "OneOne");
+        System.out.println("first" + first);
+        /**从`ArrayList`中删除索引为2的元素。**/
+        first.remove(2);
+        System.out.println("first" + first);
+        /**获取`ArrayList`中索引为3的元素**/
+        String three = first.get(3);
+        System.out.println("first:" + three);
+        /**将`ArrayList`中索引为1的元素修改为"New Element**/
+        first.set(1, "New Element");
+        System.out.println("first:" + first);
+        /**在`ArrayList`中搜索字符串"Target"的位置**/
+        int t = first.indexOf("Target");
+        System.out.println("first:" + t);
+        /**将`ArrayList`中所有出现的"Old"字符串替换为"New"。**/
+        for (int i = 0; i < first.size(); i++) {
+            if (first.get(i).equals("old")) {
+                first.set(i, "New");
+            }
+        }
+        System.out.println("first:" + first);
+        /**反转`ArrayList`中的元素顺序。**/
+        Collections.reverse(first);
+        System.out.println("first：" + first);
+        /** 对`ArrayList`中的字符串元素进行排序。**/
+        Collections.sort(first);
+        System.out.println("first：" + first);
+        /**比较两个`ArrayList`是否相等**/
+        java.util.ArrayList<String> first1 = new java.util.ArrayList<String>();
+        first.add("one");
+        first.add("tow");
+        first.add("old");
+        first.add("old");
+        first.add("five");
+        boolean D=first.equals(first1);
+        System.out.println("first:"+D);
+
+
+
+    }
+}
diff --git "a/work/com/java/minxi/java_202405012/java_2302_\347\216\213\345\274\200\347\244\276_2344310220/LinkedList.java" "b/work/com/java/minxi/java_202405012/java_2302_\347\216\213\345\274\200\347\244\276_2344310220/LinkedList.java"
new file mode 100644
index 0000000000000000000000000000000000000000..9cf905a85cd487fff4544f380dbf7389f0b2738e
--- /dev/null
+++ "b/work/com/java/minxi/java_202405012/java_2302_\347\216\213\345\274\200\347\244\276_2344310220/LinkedList.java"
@@ -0,0 +1,55 @@
+package com.java.minxi.java_202405012.java_2302_王开社_2344310220;
+
+import java.util.Collections;
+public class LinkedList {
+    public static void main(String[] args) {
+        java.util.LinkedList<Integer> second=new java.util.LinkedList<Integer>();
+        //添加元素
+        second.add(1);
+        second.add(2);
+        second.add(10);
+        second.add(10);
+        second.add(5);
+        System.out.println("second:"+second);
+        /**在`LinkedList`中添加一个元素到列表的末尾。**/
+        second.add(6);
+        System.out.println("second:"+second);
+        /**从`LinkedList`中删除第一个元素。**/
+        second.remove(0);
+        System.out.println("second:"+second);
+        /**获取`LinkedList`中最后一个元素**/
+        Integer last= second.get(second.size()-1);
+        System.out.println("second:"+last);
+        /**将`LinkedList`中索引为0的元素修改为42**/
+        second.set(0,42);
+        System.out.println("second:"+second);
+        /**在`LinkedList`中搜索整数42的位置。**/
+        int T=second.indexOf(42);
+        System.out.println("second:"+T);
+        /**将`LinkedList`中所有出现的数字10替换为20。**/
+        for (int i=0; i<second.size(); i++){
+            if (second.get(i).equals(10)) {
+                second.set(i, 20);
+            }
+        }
+        System.out.println("second:"+second);
+        /**反转`LinkedList`中的元素顺序。**/
+        Collections.reverse(second);
+        System.out.println("second:"+second);
+        /**对`LinkedList`中的整数元素进行排序**/
+        Collections.sort(second);
+        System.out.println("second:"+second);
+        /**比较两个`LinkedList`是否相等**/
+        java.util.LinkedList<Integer> second1=new java.util.LinkedList<Integer>();
+        second.add(1);
+        second.add(2);
+        second.add(10);
+        second.add(10);
+        second.add(5);
+        boolean D=second.equals(second1);
+        System.out.println("second:"+D);
+
+        }
+
+}
+