1. 학습
    2. /
  2. 강의
    3. /
  3. Input/Output and Streams in Java
Connected

연습 문제

Calculate total sales

An online store processes daily sales transactions. Each sale amount needs to be increased by 10% tax before calculating the total revenue for financial reporting.

지침

100 XP
  • Use .map() to increase each sale amount by 10%.
  • Sum all updated values using .reduce().