Android First Class Hello world

First File->New->New Project

then give Application name and Company Domain as in figure with red circle

domain name is given by name.com or name.com.something

then perform next next and choose Blank Activity 

There are more activity 

MainActivity.java

package com.broadway.helloworld;

import android.os.Bundle;
import android.os.PersistableBundle;
import android.support.v7.app.AppCompatActivity;

/** * Created by dhruba on 7/22/2015. */public class MainActivity extends AppCompatActivity {
    @Override    public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
        super.onCreate(savedInstanceState, persistentState);
        setContentView(R.layout.activity_main);
    }
}

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.broadway.helloworld">

    <application android:allowBackup="true" android:label="@string/app_name"        android:icon="@mipmap/ic_launcher" android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter >
            <action android:name="android.intent.action.MAIN"></action>
           <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity>
    </application>

</manifest>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="fff">

</LinearLayout> 

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