How to add placeholder to an EditText in Android

activity_main.xml 
 <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/rl"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:padding="10dp"     tools:context=".MainActivity"     android:background="#deeae5"     >     <!--         android:hint             Hint text to display when the text is empty.              Must be a string value, using '\\;' to escape characters             such as '\\n' or '\\uxxxx' for a unicode character.              This may also be a reference to a resource (in the form             "@[package:]type:name") or theme attribute (in the form             "?[package:][type:]name") containing a value of this type.              Sometimes android developers describe the hint as a placeholder.     -->     <EditText         android:id="@+id/et"         android:layout_width="250dp"         android:layout_height="wrap_content"         android:padding="10dp"         android:hint="Hint from xml layout file"         />     <EditText         android:id="@+id/et2"         android:layout_width="250dp"         android:layout_height="wrap_content"         android:padding="10dp"         android:layout_below="@+id/et"         /> </RelativeLayout>
MainActivity.java 
 package com.cfsuman.me.androidcodesnippets;  import android.os.Bundle; import android.app.Activity; import android.widget.EditText;   public class MainActivity extends Activity {      @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);          // Get the widgets reference from XML layout         EditText et = (EditText) findViewById(R.id.et);         EditText et2 = (EditText) findViewById(R.id.et2);          /*             setHint (CharSequence hint)                 Sets the text to be displayed when the text of the                 TextView is empty. Null means to use the normal empty                 text. The hint does not currently participate                 in determining the size of the view.          */         // Set the initial instructional text of third EditText         // Set hint of the third EditText         // Set the placeholder (hint) for second EditText         et2.setHint("Hint (Placeholder) created programmatically");     } }
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