diff --git a/app/src/main/java/me/jj97181818/ch08_multiactivity/MainActivity.java b/app/src/main/java/me/jj97181818/ch08_multiactivity/MainActivity.java
index d5f7994..4b10e20 100644
--- a/app/src/main/java/me/jj97181818/ch08_multiactivity/MainActivity.java
+++ b/app/src/main/java/me/jj97181818/ch08_multiactivity/MainActivity.java
@@ -17,6 +17,16 @@ public class MainActivity extends AppCompatActivity {
         tvPath = findViewById(R.id.tv_path1);
     }
 
+    private void run(Intent intent) {
+        tvPath.setText(intent.getCharSequenceExtra("path"));
+        if (tvPath.getText().equals("")) {
+            tvPath.setText("1");
+        }
+        else {
+            tvPath.setText(tvPath.getText() + " -> 1");
+        }
+    }
+
     public void goBack (View v) {
         finish();
     }
diff --git a/app/src/main/java/me/jj97181818/ch08_multiactivity/SecondActivity.java b/app/src/main/java/me/jj97181818/ch08_multiactivity/SecondActivity.java
index ecfde64..6bd089d 100644
--- a/app/src/main/java/me/jj97181818/ch08_multiactivity/SecondActivity.java
+++ b/app/src/main/java/me/jj97181818/ch08_multiactivity/SecondActivity.java
@@ -17,6 +17,11 @@ public class SecondActivity extends AppCompatActivity {
         tvPath = findViewById(R.id.tv_path2);
     }
 
+    private void run(Intent intent) {
+        tvPath.setText(intent.getCharSequenceExtra("path"));
+        tvPath.setText(tvPath.getText() + " -> 2");
+    }
+
     public void goBack (View v) {
         finish();
     }
diff --git a/app/src/main/java/me/jj97181818/ch08_multiactivity/ThirdActivity.java b/app/src/main/java/me/jj97181818/ch08_multiactivity/ThirdActivity.java
index 885104a..c1db5a6 100644
--- a/app/src/main/java/me/jj97181818/ch08_multiactivity/ThirdActivity.java
+++ b/app/src/main/java/me/jj97181818/ch08_multiactivity/ThirdActivity.java
@@ -17,6 +17,11 @@ public class ThirdActivity extends AppCompatActivity {
         tvPath = findViewById(R.id.tv_path3);
     }
 
+    private void run(Intent intent) {
+        tvPath.setText(intent.getCharSequenceExtra("path"));
+        tvPath.setText(tvPath.getText() + " -> 3");
+    }
+
     public void goBack (View v) {
         finish();
     }