diff --git a/app/src/main/java/com/example/tampopo_client/models/Activity.java b/app/src/main/java/com/example/tampopo_client/models/Activity.java
new file mode 100644
index 0000000..7c3d626
--- /dev/null
+++ b/app/src/main/java/com/example/tampopo_client/models/Activity.java
@@ -0,0 +1,47 @@
+package com.example.tampopo_client.models;
+
+public class Activity {
+    private String userId;
+    private String activityId;
+    private String text;
+    private String updateTime;
+
+    public Activity(String userId, String activityId, String text, String updateTime) {
+        this.userId = userId;
+        this.activityId = activityId;
+        this.text = text;
+        this.updateTime = updateTime;
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getActivityId() {
+        return activityId;
+    }
+
+    public void setActivityId(String activityId) {
+        this.activityId = activityId;
+    }
+
+    public String getText() {
+        return text;
+    }
+
+    public void setText(String text) {
+        this.text = text;
+    }
+
+    public String getUpdateTime() {
+        return updateTime;
+    }
+
+    public void setUpdateTime(String updateTime) {
+        this.updateTime = updateTime;
+    }
+}