输出周一至周日

【文件属性】：
文件名称：输出周一至周日
文件大小：512B
文件格式：JAVA
更新时间：2022-04-05 12:56:52
java package lesson05; import java.util.Collection; import java.util.HashMap; public class Topic_5_1 { public static void main(String[] args) { HashMap day = new HashMap(); day.put("1", "Monday"); day.put("2", "Tuesday"); day.put("3", "Wednesday"); day.put("4", "Thursday"); day.put("5", "Friday"); day.put("6", "Saturday"); day.put("7", "Sunday"); Collection<?> days = day.entrySet(); System.out.println(day); System.out.println(days); } }