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Smita Kapse has Published 558 Articles
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
182 Views
To sort in ascending order, the syntax is as follows −db.yourCollectionName.find().sort({yourField:1});To understand the concept, let us create a collection with the document. The query to create a collection with a document is as follows −> db.sortingDemo.insertOne({"Value":100}); { "acknowledged" : true, "insertedId" : ObjectId("5c8f8e2ed3c9d04998abf006") } > db.sortingDemo.insertOne({"Value":1}); { ... Read More
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
1K+ Views
The syntax is as follows for this −db.yourCollectionName.update({ }, { $set: { "yourOuterFieldName.yourInnerFieldName": "yourValue" } });To understand the syntax, let us create a collection with the document. The query to create a collection with a document is as follows −> db.updateNestedValueDemo.insertOne({"CustomerName":"Chris", ... "CustomerDetails":{"CustomerAge":25, "CustomerCompanyName":"Google", "CustomerCityName":"US"}}); { "acknowledged" : ... Read More
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
373 Views
The averagingDouble() method of the Collectors class in Java 8 returns a Collector that is the arithmetic mean of a double-valued function applied to the input elements.The syntax is as follows −public static Collector averagingDouble(ToDoubleFunction
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
156 Views
In this Program we will basically find a feedback arc set which contains edges which when removed from the graph, graph becomes directed acyclic graph.AlgorithmBegin function checkCG(int n) : n: number of vertices. arr: struct graph variable. Initialize cnt = 0 and size = (n-1). For i =0 to n-1 ... Read More
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
303 Views
This example demonstrate How to use hash set in AndroidStep 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. ... Read More
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
149 Views
The add() method of the StringJoiner class is used in Java 8 to add a copy of the given CharSequence value as the next element of the StringJoiner value. If the new element ele is null, then the value null gets added.The syntax is as follows −public StringJoiner add(CharSequence ele)Here, ... Read More
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
2K+ Views
In MongoDB, the command does not exist to copy a collection from one database to another. To achieve it, use the below concept −db.yourCollectionName.find().forEach(function(yourVariableName){ db.getSiblingDB('yourDestinationDatabase')['yourCollectionName'].insert(yourVariableName); });Let us create a collection in the test database and copy this collection to another database with the name „sample‟.To understand the above syntax, ... Read More
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
755 Views
Weakly or Strongly Connected for a given a undirected graph can be found out using DFS. This is a C++ program of this problem.Functions usedBegin Function fillorder() = fill stack with all the vertices. a) Mark the current node as visited and print it b) Recur for all ... Read More
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
87 Views
The skip() method of the DoubleStream class in Java returns a stream consisting of the remaining elements of this stream after discarding the first numEle elements of the stream. The numEle is a parameter which you can set to skip any number of elements from the stream.The syntax is as ... Read More
![Smita Kapse](https://www.tutorialspoint.com/assets/profiles/13597/profile/60_103706-1512718957.jpg)
Smita Kapse
418 Views
At first let us discuss about the rand() function. rand() function is a predefined method of C++. It is declared in header file. rand() is used to generate random number within a range. Here min_n is the minimum range of the random numbers and max_n is the maximum range ... Read More