duplicates

TransformException duplicate entry for common.annotations.Beta

由 笑着哭i 提交于 2019-11-26 09:09:32
问题 This started when I added google-api-services-calendar . I am getting this error when trying to build: Error:Execution failed for task \':app:transformClassesWithJarMergingForDebug\'. com.android.build.transform.api.TransformException: java.util.zip.ZipException: duplicate entry: com/google/common/annotations/Beta.class This is part of the output when running ./gradlew app:dependencies : compile - Classpath for compiling the main sources. +--- com.google.android.gms:play-services-measurement

Java HashSet contains duplicates if contained element is modified

由 心不动则不痛 提交于 2019-11-26 09:03:44
问题 Let\'s say you have a class and you create a HashSet which can store this instances of this class. If you try to add instances which are equal, only one instance is kept in the collection, and that is fine. However if you have two different instances in the HashSet, and you take one and make it an exact copy of the other (by copying the fields), the HashSet will then contain two duplicate instances. Here is the code which demonstrates this: public static void main(String[] args) { HashSet

Mongoose duplicate key error with upsert

由 你说的曾经没有我的故事 提交于 2019-11-26 08:33:14
问题 I have problem with duplicate key. Long time can`t find answer. Please help me solve this problem or explain why i get duplicate key error. Trace: { [MongoError: E11000 duplicate key error collection: project.monitor index: _id_ dup key: { : 24392490 }] name: \'MongoError\', message: \'E11000 duplicate key error collection: project.monitor index: _id_ dup key: { : 24392490 }\', driver: true, index: 0, code: 11000, errmsg: \'E11000 duplicate key error collection: project.monitor index: _id_

Find duplicated rows (based on 2 columns) in Data Frame in R

由 微笑、不失礼 提交于 2019-11-26 08:23:17
问题 I have a data frame in R which looks like: | RIC | Date | Open | |--------|---------------------|--------| | S1A.PA | 2011-06-30 20:00:00 | 23.7 | | ABC.PA | 2011-07-03 20:00:00 | 24.31 | | EFG.PA | 2011-07-04 20:00:00 | 24.495 | | S1A.PA | 2011-07-05 20:00:00 | 24.23 | I want to know if there\'s any duplicates regarding to the combination of RIC and Date. Is there a function for that in R? 回答1: You can always try simply passing those first two columns to the function duplicated : duplicated

Finding duplicate values in arraylist

由 守給你的承諾、 提交于 2019-11-26 08:08:57
问题 I have an ArrayList<Car> For Example class Car{ String carName; int carType; } Now, I have to find if the list has any cars having same name. What is the best way to do this? 回答1: Create a comparator: public class CarComparator implements Comparator<Car> { public int compare(Car c1, Car c2) { return c1.carName.compareTo(c2.carName); } } Now add all the cars of the ArrayList to a SortedSet , preferably TreeSet ; if there are duplicates add to the list of duplicates: List<Car> duplicates = new

Java: Detect duplicates in ArrayList?

由 和自甴很熟 提交于 2019-11-26 07:53:09
How could I go about detecting (returning true/false) whether an ArrayList contains more than one of the same element in Java? Many thanks, Terry Edit Forgot to mention that I am not looking to compare "Blocks" with each other but their integer values. Each "block" has an int and this is what makes them different. I find the int of a particular Block by calling a method named "getNum" (e.g. table1[0][2].getNum(); Paul Tomblin Simplest: dump the whole collection into a Set (using the Set(Collection) constructor or Set.addAll), then see if the Set has the same size as the ArrayList. List<Integer

remove duplicate from string in PHP

由 旧街凉风 提交于 2019-11-26 07:30:29
问题 I am looking for the fastest way to remove duplicate values in a string separated by commas. So my string looks like this; $str = \'one,two,one,five,seven,bag,tea\'; I can do it be exploding the string to values and then compare, but I think it will be slow. what about preg_replace() will it be faster? Any one did it using this function? 回答1: The shortest code would be: $str = implode(',',array_unique(explode(',', $str))); If it is the fastest... I don't know, it is probably faster then

Fastest way to remove duplicate documents in mongodb

由 帅比萌擦擦* 提交于 2019-11-26 07:22:22
问题 I have approximately 1.7M documents in mongodb (in future 10m+). Some of them represent duplicate entry which I do not want. Structure of document is something like this: { _id: 14124412, nodes: [ 12345, 54321 ], name: \"Some beauty\" } Document is duplicate if it has at least one node same as another document with same name . What is the fastest way to remove duplicates? 回答1: Assuming you want to permanently delete docs that contain a duplicate name + nodes entry from the collection, you can

Finding duplicate files and removing them

由 ￣綄美尐妖づ 提交于 2019-11-26 06:56:40
问题 I am writing a Python program to find and remove duplicate files from a folder. I have multiple copies of mp3 files, and some other files. I am using the sh1 algorithm. How can I find these duplicate files and remove them? 回答1: Fastest algorithm - 100x performance increase compared to the accepted answer (really :)) The approaches in the other solutions are very cool, but they forget about an important property of duplicate files - they have the same file size. Calculating the expensive hash

php: check if an array has duplicates

由 ＊爱你＆永不变心＊ 提交于 2019-11-26 06:36:45
问题 I\'m sure this is an extremely obvious question, and that there\'s a function that does exactly this, but I can\'t seem to find it. In PHP, I\'d like to know if my array has duplicates in it, as efficiently as possible. I don\'t want to remove them like array_unique does, and I don\'t particularly want to run array_unique and compare it to the original array to see if they\'re the same, as this seems very inefficient. As far as performance is concerned, the \"expected condition\" is that the
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