Just another Button and Edit Text

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    android:layout_gravity="center"
    tools:context="agney.alpha.com.helloworld.MainActivity">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter Search Term"
        android:id="@+id/editText"/>

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/button"
        android:layout_gravity="center_horizontal"
        android:text="Search"/>

</LinearLayout>

MainActivity.java

final Button button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {

                Intent intent = new Intent (MainActivity.this ,DisplayActivity.class);
                EditText editText = (EditText) findViewById(R.id.editText);
                message = editText.getText().toString();
                intent.putExtra(EXTRA_MESSAGE,message);
                startActivity(intent);
            }
        } );