franz collection

Recently some time, gathering very hot, from the news of thieves, to music thieves, to the news collection, Flash collection, there are traces of him, there are many people are very interested in collecting, in order to serve everyone, I am also writing a collection program, the name for the Mind acquisition program, now I talk about the acquisition of the releva

We strive to create a list of the most complete collection of checks, please have someone with the collection experience to put your actual situation in the reply, I will organize them regularly and join here. So those who provide information will be added, and more importantly, all those who benefit from it will appreciate it. Please provide information in the following format, even if the different outlet

1. Remove duplicate string elements from the ArrayList collection (same string content)Analysis:(1) Creating a Collection Object(2) Adding multiple string elements (containing duplicates)(3) Create a new collection(4) Iterate through the old collection to get each element(5) Take an element to the new set and look for

") ; Hash.add ("C"); Hash.add ("D"); Iterator it = Hash.iterator (); while (It.hasnext ()) {System.out.println (It.next ())}}}As above, with linkedhashset can achieve orderly storage, but there is no order is not important, the key is to ensure the only.Second, TreeSet CollectionAPI documentation explains:Based on TreeMap the NavigableSet implementation. Use the natural order of the elements to sort the elements, or sort based on what is provided when the set is created Comparator , depending on

1. Overview of the Map collection:1 Public Interface MapAs a student, is based on the number to distinguish between different students, then assume that I now know the student's number, I have to according to the number to obtain the student's name, how to do it?If we use the previously explained set, we can only use the number and student name as a member of an object, and then store the entire object, in the future, when the traversal, judge, get t

The first thing to say is garbage, what's the name garbage?All is garbage, also first,second, I am not against who, everyone here is rubbish!!!HotSpotWTF, hot pots? What about my grandmother's heat, heat,you know?In short, the hotspot is a Java virtual machine to follow the specification of a realization, it was not sun company, but another company, was later acquired by Sun, anyway, is now Oracle, Oracle said, do not Rob, are mine.Garbage collectorThe concept of garbage

1. Stack: Stack, advanced out, one assignment, one value, in order.. Count takes the number of elements in the collectionThe. push () pushes the element one by one into the collection using the//stack collection. Push ()Pop () pops a collection of elements. Clear () empties the collectionNew Stack (); // first deposit and then take out S.push (1);

Java Collection comparison ---- collection, java ---- Collection I have never figured out the differences between various java collections before, so I will combine them here for comparison. Collection and Map All java collections come from one of the Collection and Map inte

Collection collection, Collection For some internal collection algorithms, refer to the container summary in this article. (Abstract +)Collection Subclass: List, Queue, Set Add: Add (E): boolean AddAll (Collection Delete:

The methods in java collection _ collection are embodied through Arraylist, And the java collection arraylist Import java. util .*;/*Collection defines the common functions of the Collection framework.1. AddAdd (e );AddAll (collection