Activity main xml file for the design of the math operations app

activity_main.xml

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

    <EditText
        android:id="@+id/ed1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="numberDecimal"
        android:hint="First value"
        tools:layout_editor_absoluteX="98dp"
        tools:layout_editor_absoluteY="132dp" />

    <EditText
        android:id="@+id/ed2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:inputType="numberDecimal"
        android:hint="Second Value"
        tools:layout_editor_absoluteX="97dp"
        tools:layout_editor_absoluteY="218dp" />

    <TextView
        android:id="@+id/tvResult"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/btnAdd"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="addition"
        android:text="+"
        tools:layout_editor_absoluteX="31dp"
        tools:layout_editor_absoluteY="354dp" />

    <Button
        android:id="@+id/BtnMinus"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="subtraction"
        android:text="-"
        tools:layout_editor_absoluteX="137dp"
        tools:layout_editor_absoluteY="354dp" />

    <Button
        android:id="@+id/BtnMultiply"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="multiplication"
        android:text="X"
        tools:layout_editor_absoluteX="245dp"
        tools:layout_editor_absoluteY="354dp" />

    <Button
        android:id="@+id/BtnDivide"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="division"
        android:text="/"
        tools:layout_editor_absoluteX="144dp"
        tools:layout_editor_absoluteY="430dp" />
</LinearLayout>