• boolean removeAll(Collection<?> c):从此列表中删除包含在指定集合中的所有元素 • Object[] toArray():以正确的顺序(从第一个到最后一个元素)返回一个包含此列表中所有元素的数组 • int size():返回此列表中的元素数 • Iterator iterator():以正确的顺序返回该列表中元素的迭代器 • ListItera...
staticvoidtestListIteratorRemove(){ LinkedList<String> strList =newLinkedList<String>(); strList.add("1"); strList.add("2"); strList.add("3"); print("init content:"); printCollection(strList); ListIterator<String> it =strList.listIterator(); it.next(); it.remove();//okprint("af...
下面的代码展示了如何使用迭代器的add()方法来实现这个目标: List<Integer>list=newArrayList<>(Arrays.asList(1,2,3,4,5));ListIterator<Integer>iterator=list.listIterator();inttarget=3;// 在元素3之前插入新元素while(iterator.hasNext()){if(iterator.next()==target){iterator.add(100);// 在元素3之...
Removes from the list the last element that was returned bynext()orprevious()(optional operation). This call can only be made once per call tonextorprevious. It can be made only ifadd(java.lang.Object)has not been called after the last call tonextorprevious. 简单解释一下,要执行remove,...
IListIterator.Add(Object) Method Reference Feedback Definition Namespace: Java.Util Assembly: Mono.Android.dll Inserts the specified element into the list (optional operation). [Android.Runtime.Register("add", "(Ljava/lang/Object;)V", "GetAdd_Ljava_lang_Object_Handler:Java.Util.IList...
Java.Util Assembly: Mono.Android.dll Inserts the specified element into the list (optional operation). C# [Android.Runtime.Register("add","(Ljava/lang/Object;)V","GetAdd_Ljava_lang_Object_Handler:Java.Util.IListIteratorInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=...
Namespace: Java.Util Assembly: Mono.Android.dll Inserts the specified element into the list (optional operation). C# 复制 [Android.Runtime.Register("add", "(Ljava/lang/Object;)V", "GetAdd_Ljava_lang_Object_Handler:Java.Util.IListIteratorInvoker, Mono.Android, Version=0.0.0.0, Culture=...
第一次调用不会报错,而第二次修改相同键值对时,就会报错UnsupportedOperationException 问题出在List.of(new Home(homeName, player.getLocation()))上 通过List.of或Arrays.asList方法产生的 List 对象,其实是而是java.util.Arrays类中的一个内部类,并不是正常的java.util.ArrayList类...
关于hashSet的实现原理,最重要的一个点就是HashSet内部是使用HashMap来存储对象的。所以请读者务必先对hashMap的实现原理有一个初步的认识。参考笔者的文章HashMap实现原理分析(Java源码剖析) 我们可以看到HashSet有多个构造函数,但每个构造函数都是初始化了一个HashMap的对象 ...
Java.Util Assembly: Mono.Android.dll Inserts the specified element into the list (optional operation). C# [Android.Runtime.Register("add","(Ljava/lang/Object;)V","GetAdd_Ljava_lang_Object_Handler:Java.Util.IListIteratorInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=...