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 中插入映射项
prices.put("Shoes", 200);
prices.put("Bag", 300);
prices.put("Pant", 150);
System.out.println("Normal Price: " + prices);
System.out.print("Discounted Price: ");
//通过 lambda 表达式使用 forEach()
prices.forEach((key, value) -> {
// value 价格减少百分之 10
value = value - value * 10/100;
System.out.print(key + "=" + value + " ");
});
}
}