Java Stream Sum BigDecimal and Int on Object

Code sample

What we are trying to sum the BigDecimal and int on using Java stream

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

public class DecimalDemo {

    public record Budget(
            int amountInt,
            BigDecimal amountDecimal) {
    }

    public static void main(String[] args) {
        List<Budget> budgets = new ArrayList<Budget>();
        budgets.add(new Budget(100, new BigDecimal("100.11")));
        budgets.add(new Budget(200,new BigDecimal("200.22")));
        budgets.add(new Budget(300,new BigDecimal("300.33")));

        System.out.println("Start");
        System.out.println(budgets);
        int addInt = budgets.stream().mapToInt(Budget::amountInt).sum();
        BigDecimal addBigDecimal = budgets.stream().map(Budget::amountDecimal).reduce(BigDecimal.ZERO, BigDecimal::add);
        System.out.println("Result");
        System.out.println(addInt);
        System.out.println(addBigDecimal);
    }

}

Running