它们对应的时间复杂度，也就明白了“ArrayList 底层是数组，查询快、增删慢；LinkedList 底层是链表，查询...
ArrayList provides constant time for search operation, so it is better to use ArrayList if searching is more frequent operation than add and remove operation. The LinkedList provides constant time for add and remove operations. So it is better to use LinkedList for manipulation. ArrayList has O(1...
ArrayList<Integer>arrayList=newArrayList<Integer>();LinkedList<Integer>linkedList=newLinkedList<Integer>();// ArrayList addlongstartTime=System.nanoTime();for(inti=0;i<100000;i++){arrayList.add(i);}longendTime=System.nanoTime();longduration=endTime-startTime;System.out.println("ArrayList add: "...
Although our first security bug report was finally classified as not-a-security issue, we have, in the mean time, observed several issuesFootnote 2, that show a pattern in which systematically the usage of LinkedList is eliminated from JDK’s source code by replacing it with ArrayList. There ...