Sometimes you might want to pick few elements from a list. It is quite straightforward: public void givenList_whenNumberElementsChosen_shouldReturnRandomElementsRepeat() { Random rand = new Random(); List<String> givenList = Arrays.asList("one", "two", "three", "four"); int numberOfEleme...
String.valueOf(v.get(0).getChargedWeight().setScale(2, RoundingMode.HALF_UP)) : "0.00"); String packsChargedWeight = CollUtil.join(packsChargedWeightList, "/") + " KG"; // 件数重量 map.put("packsChargedWeight", packsChargedWeight); // 件数重量 // 处理导出对账单的各个费用数据 deal...
The instantiated ZooKeeper client object will pick an arbitrary server from the connectString and attempt to connect to it. If establishment of the connection fails, another server in the connect string will be tried (the order is non-deterministic, as we random shuffle the list), until a conn...
packagemongodb;importjava.util.List;importcom.mongodb.BasicDBObject;importcom.mongodb.DB;importcom.mongodb.DBCollection;importcom.mongodb.MongoClient;publicclassjavaFindDistinct {publicstaticvoidmain(String[] args) {try{ MongoClient mongoClient=newMongoClient("localhost", 27017);//数据连接池DB db ...
versions=MoovVersions.listMoovVersionAtoms(newFile("my.mp4"))//pick your versionversion=versions.get(Math.random()*versions.size())MoovVersions.rollback(newFile("my.mp4"),version) Contact Feel free to communicate any questions or concerns to us. Dev team email:jcodecproject@gmail.com ...
Redis是一个字典结构(key-value)的存储服务器,和Memcached类似,它支持存储的value类型相对更多,包括string(字符串)、list(链表)、set(集合)、zset(sorted set --有序集合)和hash(哈希类型)。这些数据类型都支持push/pop、add/remove及取交集并集和差集及更丰富的操作,而且这些操作都是原子性的。在此基础上,redis...
public static int generateRandomInt() { return ThreadLocalRandom.current().nextInt(); } ⬆ 回到顶部 String anagrams 生成一个字符串的所有字符(包含重复)。 public static List<String> anagrams(String input) { if (input.length() <= 2) { return input.length() == 2 ? Arrays.asList(input,...
6624555 java install CanonicalizeJava2Registry may set CurrentVersion to random value 6627566 java install drop "family" from consumer installer 6627643 java install installer PIP should warn user if kernel isn't finished downloading/reconstructing ...
In order to choose by weight, we need to accumlat the total weight, and pick a random number within [1, total weight]. sum = [20, 40, 100] And binary search where this weight would land. If sum[mid] == pick, then simply return mid. ...
For each of these environments, I wrote the appropriate code to read in a 64k file with random bytes, ran a SHA-256 hash on it N number of times (N being specified in the URL’s query string, e.g.,.../test.php?n=100) and print the resulting hash in hex. I chose this because...