diff --git a/java-base-projects-task/src/main/java/com/swpu/zhuyu/Test1.java b/java-base-projects-task/src/main/java/com/swpu/zhuyu/Test1.java
new file mode 100644
index 0000000000000000000000000000000000000000..346cc570a10a07e1584d28d3f8f73dc5ff7ee54c
--- /dev/null
+++ b/java-base-projects-task/src/main/java/com/swpu/zhuyu/Test1.java
@@ -0,0 +1,13 @@
+package com.swpu.zhuyu;
+
+import java.util.ArrayList;
+
+public class Test1 {
+    public static void main(String[] args) {
+      var list =new ArrayList<>();
+      list.add("苹果")   ;
+              list.add("xiangjiao");
+              list.add("tudou");
+        System.out.println(list.get(1));
+    }
+}
diff --git a/java-base-projects-task/src/main/java/com/swpu/zhuyu/Test2.java b/java-base-projects-task/src/main/java/com/swpu/zhuyu/Test2.java
new file mode 100644
index 0000000000000000000000000000000000000000..ba908670842fbbc6cecb1942a68eb04b0d3b7b38
--- /dev/null
+++ b/java-base-projects-task/src/main/java/com/swpu/zhuyu/Test2.java
@@ -0,0 +1,31 @@
+package com.swpu.zhuyu;
+
+import java.awt.image.ImageProducer;
+import java.util.HashMap;
+import java.util.Map;
+
+public class Test2 {
+    public static void main(String[] args) {
+        Map<String,String> map =new HashMap<>();
+        map.put("pingguo","16");
+        map.put("xiangjiao","20");
+        System.out.println(map);
+        System.out.println(map.get("xiangjiao"));
+        System.out.println(map.get("pingguo"));
+        for(Map.Entry<String,String>keys: map.entrySet()){
+            System.out.println(keys.getKey()+"="+keys.getValue());
+        }
+        Map map1 = new HashMap();
+        Map<String, String> map2 = new HashMap<>();
+        var name = "WEI_YU";
+        var age = 24;
+        Object name1 = "WEI_YU";
+        Object age1 = 24;
+        map1.put("姓名", "WEIYU");
+        map1.put("年龄", 24);
+        map1.put("价格", 16.2);
+        map2.put("姓名", "WEIYU");
+        map2.put("年龄", 24 + "");
+
+    }
+}
diff --git a/java-base-projects-task/src/main/java/com/swpu/zhuyu/Test3.java b/java-base-projects-task/src/main/java/com/swpu/zhuyu/Test3.java
new file mode 100644
index 0000000000000000000000000000000000000000..9641926f0eaa36d2d93804831491d18bf6a535d8
--- /dev/null
+++ b/java-base-projects-task/src/main/java/com/swpu/zhuyu/Test3.java
@@ -0,0 +1,7 @@
+package com.swpu.zhuyu;
+import java.util.Map;
+public class Test3 {
+    public static void main(String[] args) {
+        System.out.println("123");
+    }
+}