Merge branch 'main' of github.com:Snailclimb/JavaGuide

Author: Snailclimb

docs/java/new-features/java8-common-new-features.md

@@ -854,8 +854,8 @@ public void afterDay(){
      Date date1 = format.parse(dates1);
      Date date2 = format.parse(dates2);
      int day = (int) ((date1.getTime() - date2.getTime()) / (1000 * 3600 * 24));
-     System.out.println(dates2 + "和" + dates2 + "相差" + day + "天");
-     //结果：2021-12-23和2021-12-23相差300天
+     System.out.println(dates1 + "和" + dates2 + "相差" + day + "天");
+     //结果：2021-02-26和2021-12-23相差300天
 }
 ```
 
@@ -883,8 +883,8 @@ public void pushWeek(){
      //这里period.getDays()得到的天是抛去年月以外的天数，并不是总天数
      //如果要获取纯粹的总天数应该用下面的方法
      long day = date2.toEpochDay() - date1.toEpochDay();
-     System.out.println(date2 + "和" + date2 + "相差" + day + "天");
-     //打印结果：2021-12-23和2021-12-23相差300天
+     System.out.println(date1 + "和" + date2 + "相差" + day + "天");
+     //打印结果：2021-02-26和2021-12-23相差300天
 }
 ```