Greatest among three numbers

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:padding="10sp">

    <EditText
        android:id="@+id/num1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter number 1"
        android:inputType="number" />

    <EditText
        android:id="@+id/num2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/num1"
        android:hint="Enter number 2"
        android:inputType="number" />

    <EditText
        android:id="@+id/num3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/num2"
        android:hint="Enter number 3"
        android:inputType="number" />

    <Button
        android:id="@+id/btnFindGreatest"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/num3"
        android:text="Find Greatest"
        android:onClick="findGreatest" />

    <TextView
        android:id="@+id/result"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/btnFindGreatest"
        android:textSize="24sp"
        android:gravity="center" />

</RelativeLayout>

package com.example.myapplication;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    EditText num1, num2, num3;
    TextView result;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        num1 = findViewById(R.id.num1);
        num2 = findViewById(R.id.num2);
        num3 = findViewById(R.id.num3);
        result = findViewById(R.id.result);
    }

    public void findGreatest(View view) {
        int n1 = Integer.parseInt(num1.getText().toString());
        int n2 = Integer.parseInt(num2.getText().toString());
        int n3 = Integer.parseInt(num3.getText().toString());
        int greatest = n1;

        if (n2 > greatest) {
            greatest = n2;
        }
        if (n3 > greatest) {
            greatest = n3;
        }
        result.setText("The greatest number is " + greatest);
    }
}