java 中删除list元素的四种方法(remove) i =0, len = list.size(); i < len; i++){if(list.get(i) ==1) { list.remove(i);} } 这样会抛出异常 Exception in thread"main"java.lang.IndexOutOfBoundsException:Index:3, Size:3atjava.util.ArrayList.RangeCheck(UnknownSource)atjava.util.ArrayList...
privateclassItrimplementsIterator<E>{intcursor;//index of next element to returnintlastRet = -1;//index of last element returned; -1 if no suchintexpectedModCount = modCount; 通过注释可以看到,lastRet就是上个元素的索引,默认是-1,所以直接调用迭代器的remove()方法会报错就是这个原因, 所以在上面...
publicbooleanremove(Object o){if(o==null)returnfalse;fullyLock();//获取存元素锁和取元素锁(不允许存或取元素),因为有可能同时涉及到头尾结点的访问问题try{for(Node<E>trail=head,p=trail.next;p!=null;trail=p,p=p.next){// 遍历整个链表if(o.equals(p.item)){// 结点的值与指定值相等unlink(...
Namespace: Java.Util Assembly: Mono.Android.dll Removes a single instance of the specified element from this collection, if it is present (optional operation). [Android.Runtime.Register("remove", "(Ljava/lang/Object;)Z", "GetRemove_Ljava_lang_Object_Handler:Java.Util.ICollectionInvoker, Mo...
Remove-CMClientSettingDeployment [-Force] -InputObject <IResultObject> [-DisableWildcardHandling] [-ForceWildcardHandling] [-WhatIf] [-Confirm] [<CommonParameters>] PowerShell 複製 Remove-CMClientSettingDeployment -CollectionId <String> -ClientSettingsId <String> [-Force] [-DisableWildcardHandling...
if ( s.equals(in) ) { list.remove(s); } } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 看上去我们的代码很完美,在理论上肯定会达到预期的结果,但是当遍历删除后的array,会发现,打印结果为2,2,1,3,3。怎么还有一个1没删除呢,现在我们来看在这段代码中用到的remove方法 ...
if (i % 2 == 0) list.remove(i); //最终得到2,3,5 1.2、直接使用list.remove(Object o) ArrayList.remove(Object o)源码的逻辑和ArrayList.remove(int index)大致相同:列表索引坐标从小到大循环遍历,若列表中存在与入参对象相等的元素,则把该元素移除,后面的元素都往左移动一位,返回true,若不存在与入...
V refers to the data type of the values in the map.Parameter ValuesParameterDescription key Required. The key of the entry to be removed. value Optional. The value of the entry to be removed.Technical DetailsReturns: When a value is specified, it returns true if an entry was deleted and...
Java: 代码语言:txt AI代码解释 class Solution { public int removeElement(int[] nums, int val) { int i=0,j=nums.length-1;//i-左指针;j-右指针 while (i<=j){ if(nums[i]==val){ nums[i]=nums[j];//得到索引j的值,无需把索引j的值改为索引i的值 j--; }else i++; } return j...
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