activit_main.xml for SQLite Demo

<?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: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.databasetest.MainActivity">


    <EditText
        android:layout_margin="10dp"
        android:id="@+id/et_name"
        android:hint="Enter your name"
        android:layout_width="match_parent"
        android:layout_height="45dp" />
    <EditText
        android:layout_margin="10dp"
        android:layout_below="@+id/et_name"
        android:id="@+id/et_college"
        android:hint="Enter your college name"
        android:layout_width="match_parent"
        android:layout_height="45dp" />
    <EditText
        android:layout_below="@+id/et_college"
        android:layout_margin="10dp"
        android:id="@+id/et_userid"
        android:hint="Enter your user id"
        android:layout_width="match_parent"
        android:layout_height="45dp" />
    <EditText
        android:layout_below="@+id/et_userid"
        android:layout_margin="10dp"
        android:id="@+id/et_place"
        android:hint="Enter your place"
        android:layout_width="match_parent"
        android:layout_height="45dp" />
    <EditText
        android:layout_below="@+id/et_place"
        android:layout_margin="10dp"
        android:id="@+id/et_number"
        android:hint="Enter your number"
        android:layout_width="match_parent"
        android:layout_height="45dp" />

    <Button
        android:id="@+id/btn_next"
        android:layout_marginTop="10dp"
        android:layout_below="@+id/et_number"
        android:layout_centerHorizontal="true"
        android:text="Next"
        android:layout_width="150dp"
        android:layout_height="45dp" />
</RelativeLayout>