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 4b10e20..55a9447 100644
--- a/app/src/main/java/me/jj97181818/ch08_multiactivity/MainActivity.java
+++ b/app/src/main/java/me/jj97181818/ch08_multiactivity/MainActivity.java
@@ -28,6 +28,10 @@ public class MainActivity extends AppCompatActivity {
     }
 
     public void goBack (View v) {
+        Intent intent = new Intent();
+        intent.putExtra("path", tvPath.getText());
+        setResult(RESULT_OK, intent);
+
         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 6bd089d..d396744 100644
--- a/app/src/main/java/me/jj97181818/ch08_multiactivity/SecondActivity.java
+++ b/app/src/main/java/me/jj97181818/ch08_multiactivity/SecondActivity.java
@@ -23,6 +23,10 @@ public class SecondActivity extends AppCompatActivity {
     }
 
     public void goBack (View v) {
+        Intent intent = new Intent();
+        intent.putExtra("path", tvPath.getText());
+        setResult(RESULT_OK, intent);
+
         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 c1db5a6..bb6b3c0 100644
--- a/app/src/main/java/me/jj97181818/ch08_multiactivity/ThirdActivity.java
+++ b/app/src/main/java/me/jj97181818/ch08_multiactivity/ThirdActivity.java
@@ -23,6 +23,10 @@ public class ThirdActivity extends AppCompatActivity {
     }
 
     public void goBack (View v) {
+        Intent intent = new Intent();
+        intent.putExtra("path", tvPath.getText());
+        setResult(RESULT_OK, intent);
+
         finish();
     }