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if (integer.intValue() == 2) { arrayList.remove(integer); } System.out.println("---复现方法一:"+integer); } } /** * ConcurrentModificationException复现方法二 */ public static void listRemoveExcption2(){ ArrayList<Integer> list = new ArrayList<>(); for (int i = 0; i < 5; i++...
配置数据库连接 和指定数据库类型 publicAADapperContent() :base(newNameValueCollection() { ["aa.dataSource.AaBase.connectionString"] ="Data Source =.; Initial Catalog = QuartzAA-Job;User ID = sa; Password = 123;", ["aa.dataSource.AaBase.provider"] ="SqlServer"}) { } 配置领域实体和数...
best_value = 180, flip_value = 90, bestenemy = 0, flip_once = false, clantag_enbl = false, dragging = false, disable_fs = false, disable_edge = false, last_shot = 0, ox = 0, oy = 0, last_selected = 0, ...
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doubleaverage=numbers.stream().mapToInt(Integer::intValue).average().getAsDouble(); 1. 我们使用average方法求整数列表的平均值。由于返回值是OptionalDouble类型,我们需要使用getAsDouble方法获得实际的平均值。 3. 完整代码 importjava.util.Arrays;importjava.util.List;publicclassListOperations{publicstaticvoid...
Name-Value Arguments Specify optional pairs of arguments asName1=Value1,...,NameN=ValueN, whereNameis the argument name andValueis the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter. ...
1Dictionary<TKey,TValue>2SortedDictionary<TKey,TValue>3SortedList<TKey,TValue> Dictionary<TKey,TValue> Dictionary<TKey,TValue>可能是最常用的关联性集合了,它的访问,添加,删除数据所花费的时间是所有集合类里面最快的, 因为它内部用了Hashtable作为存储结构,所以不管存储了多少键值对,查询/添加/删除所花费...
List组件如何实现多列效果 如何设置分组列表的圆角和间距 如何获取UI组件的显示或隐藏状态 如何实现类似插槽的功能 如何解决子组件全屏后margin不会生效的问题 如何实现手指离开屏幕后的惯性滑动效果 如何监听当前屏幕的横竖屏状态?如何实现页面跟随屏幕横竖屏自动旋转 如何处理父子组件间的事件传递,例如,如何解决...