remove feedback class

app/src/main/AndroidManifest.xml

@@ -21,7 +21,6 @@
         <activity android:name=".Sample" />
         <activity android:name=".history" />
         <activity android:name=".Disp_code" />
-        <activity android:name=".Feedback" />
         <activity android:name=".Share" />
         <activity android:name=".Help" />
         <activity android:name=".Abt"></activity>

app/src/main/java/com/example/venkat/and/Feedback.java

-package com.example.venkat.and;
-
-import android.support.v7.app.AppCompatActivity;
-import android.os.Bundle;
-
-public class Feedback extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_feedback);
-    }
-}

app/src/main/java/com/example/venkat/and/MainActivity.java

@@ -68,11 +68,7 @@ public class MainActivity extends AppCompatActivity implements NavigationView.On
         Intent i= new Intent(this,Sample.class);
         startActivity(i);
     }
-    public void feed(View view)
-    {
-      /*  Intent i=new Intent(this,Feedback.class);
-        startActivity(i);
-    */}
+
     public void abt(View view)
     {
         Intent i=new Intent(this,Abt.class);

app/src/main/res/layout/activity_disp_code.xml

@@ -21,7 +21,7 @@
             android:orientation="vertical" >
 
         <TextView
-            android:text="TextView"
+            android:text="Oops Code not found !!!"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:id="@+id/cd" />

app/src/main/res/layout/activity_feedback.xml

-<?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/activity_feedback"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingBottom="@dimen/activity_vertical_margin"
-    android:paddingLeft="@dimen/activity_horizontal_margin"
-    android:paddingRight="@dimen/activity_horizontal_margin"
-    android:paddingTop="@dimen/activity_vertical_margin"
-    tools:context="com.example.venkat.and.Feedback">
-
-</RelativeLayout>