diff --git a/app/src/main/java/org/ntlab/acanthus_client/Acanthus.java b/app/src/main/java/org/ntlab/acanthus_client/Acanthus.java
index a570877..d6b03a5 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/Acanthus.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/Acanthus.java
@@ -16,6 +16,14 @@
 
     //-----------------------------------------------------------------
     // setter
+    public Integer getUid(){
+        if(uid == null){
+            SharedPreferences preferences = getSharedPreferences("prefData",MODE_PRIVATE);
+            uid = preferences.getInt("uid", 0);
+        }
+        return uid;
+    }
+
     public String getName() {
         if(name == null){
             SharedPreferences preferences = getSharedPreferences("prefData",MODE_PRIVATE);
@@ -27,7 +35,7 @@
     public String getEmail() {
         if(email == null){
             SharedPreferences preferences = getSharedPreferences("prefData",MODE_PRIVATE);
-            email = preferences.getString("name", "");
+            email = preferences.getString("email", "");
         }
         return email;
     }
@@ -35,7 +43,7 @@
     public String getPassword() {
         if(password == null){
             SharedPreferences preferences = getSharedPreferences("prefData",MODE_PRIVATE);
-            password = preferences.getString("name", "");
+            password = preferences.getString("password", "");
         }
         return password;
     }
@@ -43,38 +51,45 @@
     public String getToken() {
         if(token == null){
             SharedPreferences preferences = getSharedPreferences("prefData",MODE_PRIVATE);
-            token = preferences.getString("name", "");
+            token = preferences.getString("token", "");
         }
         return token;
     }
 
     //-----------------------------------------------------------------
     // setter
+    public void setUid(Integer uid){
+        SharedPreferences preferences = getSharedPreferences("prefData", MODE_PRIVATE);
+        SharedPreferences.Editor editor = preferences.edit();
+        editor.putInt("uid", uid);
+        editor.commit();
+    }
+
     public void setName(String name){
         SharedPreferences preferences = getSharedPreferences("prefData", MODE_PRIVATE);
         SharedPreferences.Editor editor = preferences.edit();
-        editor.putString("name", this.name);
+        editor.putString("name", name);
         editor.commit();
     }
 
     public void setEmail(String email) {
         SharedPreferences preferences = getSharedPreferences("prefData", MODE_PRIVATE);
         SharedPreferences.Editor editor = preferences.edit();
-        editor.putString("email", this.email);
+        editor.putString("email", email);
         editor.commit();
     }
 
     public void setPassword(String password){
         SharedPreferences preferences = getSharedPreferences("prefData", MODE_PRIVATE);
         SharedPreferences.Editor editor = preferences.edit();
-        editor.putString("password", this.password);
+        editor.putString("password", password);
         editor.commit();
     }
 
     public void setToken(String token){
         SharedPreferences preferences = getSharedPreferences("prefData", MODE_PRIVATE);
         SharedPreferences.Editor editor = preferences.edit();
-        editor.putString("token", this.token);
+        editor.putString("token", token);
         editor.commit();
     }