1Z0-816 Web TestEngine demo

double totalSalary = list.stream().map(e -> e.getSalary() * ratio).reduce(bo).ifPresent (p ->
p.doubleValue());

double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).sum;

double totalSalary = list.stream().map(Employee::getSalary * ratio).reduce(bo).orElse(0.0);

double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).reduce(starts, bo);