Fast file hash? Faster Deep Cloning Faster way to get folder size? Faster way to Read XML in C#.Net Fastest method to convert bitmap object to byte array Fastest way to do string comparisons? Hashset.Contains? Fastest way to iterate through an IEnumerable<T> Fastest way to read a huge ...
Set<DayOfWeek>WEEKEND_DAYS=newHashSet(DayOfWeek.SATURDAY,DayOfWeek.SUNDAY); with the above, you can now do something likeWEEKEND_DAYS.contains(myLocalDate.getDayOfWeek()). There are other ways to determine if a given date lies in the Weekend, but it’s not as readable: ...
Set<String> strSet1 = Sets.newHashSet("A", "B", "C", "D"); Set<String> strSet2 = Sets.newHashSet("D", "M", "O", "G"); Set<String> diffSet = Sets.difference(strSet1, strSet2); assertEquals(3, diffSet.size()); Set<String> interSet = Sets.intersection(strSet1, strSet2...
HashSetstores its elements in memory buckets. Each bucket is linked to a particular hash code. When callingstudents.add(alex1), Java storesalex1inside a bucket and links it to the value ofalex1.hashcode(). Now any time an element with the same hash code is inserted into the set, it w...
import java.util.*; class Demo { public static void main(String args[]) { LinkedHashMap<String,Integer> tm = new LinkedHashMap<String,Integer>(); tm.put("a",100); tm.put("b",200); tm.put("c",300); tm.put("d",400); Set<Map.Entry<String,Integer>> st = tm.entrySet(); ...
373 105 aot[ 1] java.util.HashSet.<init>(I)V The first column here is the milliseconds since the program started, so it took 373 milliseconds until the constructor of theHashSetclass was loaded from the shared library and began execution. The second column is an ID assigned to the metho...
Graylog server log (Loglevel set to TRACE): Graylog server log: 2020-11-27T13:02:39.629+01:00 ERROR [AnyExceptionClassMapper] Unhandled exception in REST resource java.lang.RuntimeException: IOException encountered while reading from a byte array input stream at org.mongojack.internal.stream.Jac...
In Mapper Combining Option 2 The second option of in mapper combining (figure 3.3 page 41) is very similar to the above example with two distinctions – when the hash map is created and when we emit the results contained in the map. In the above example, a map is created and has its...
(Unknown Source) at java.util.HashMap$KeySet.iterator(Unknown Source) at java.util.HashSet.iterator(Unknown Source) at sun.nio.ch.Util$2.iterator(Unknown Source) at org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:600) at org.eclipse.jetty.io.nio.Selector...
businesses = new HashSet(); } businesses.add(businessCbo); placeOfBusinessCbo.setBusineses(businesses); [/B] businessCbo.setPlaceOfBusiness(placeOfBusinessCbo); businessDao.saveOrUpdate(businessCbo); [My Blog] [JavaRanch Journal] Nina Anderson Ranch Hand Posts: 148 posted 17 years ago I ...