import java.util.HashMap;
public class Main {
public static void main(String[] args) {
// 创建一个 HashMap
HashMap<String, Integer> prices = new HashMap<>();
// 往HashMap中添加映射关系
prices.put("Shoes", 200);
prices.put("Bag", 300);
prices.put("Pant", 150);
System.out.println("HashMap: " + prices);
// 重新计算鞋加上10%的增值税后的价值
int shoesPrice = prices.computeIfPresent("Shoes", (key, value) -> value + value * 10/100);
System.out.println("Price of Shoes after VAT: " + shoesPrice);
// 输出更新后的HashMap
System.out.println("Updated HashMap: " + prices);
}
}