s-day04-Arrays工具类的排序功能介绍

s-day04/src/com/inmind/sort05/SortDemo12.java

@@ -51,11 +51,11 @@ public class SortDemo12 {
                 new Student("小王3", 17),
                 new Student("小王4", 18),
                 new Student("小王5", 16));
-
+        System.out.println(list);
         sortList(list, new Comparator<Student>() {
             @Override
             public int compare(Student o1, Student o2) {
-                return o2.age - o1.age;
+                return o1.age - o2.age;
             }
         });
         System.out.println(list);
@@ -88,7 +88,7 @@ public class SortDemo12 {
                     //交换
                     T temp = arr.get(j);
                     arr.set(j, arr.get(j+1));
-                    arr.set(j = 1, temp);
+                    arr.set(j + 1, temp);
                 }
             }
         }