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Before getting into example , we should know what is vertical Scroll View(Scroll View). Vertical Scroll view provide by android.widget.ScrollView class . It is used to scroll child views in vertical direction.This example demonstrate about how to use Vertical Scroll view.Step 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
You can use update command along with forEach() for large collection. Let us first create a collection with documents>db.addingNewPropertyDemo.insertOne({"StudentName":"John", "StudentAge":23, "CountryName":"US"}); { "acknowledged" : true, "insertedId" : ObjectId("5ca1e61866324ffac2a7dc56") } >db.addingNewPropertyDemo.insertOne({"StudentName":"David", "StudentAge":21, "CountryName":"AUS"}); { "acknowledged" : true, "insertedId" : ObjectId("5ca1e62366324ffac2a7dc57") } >db.addingNewPropertyDemo.insertOne({"StudentName":"Bob", "StudentAge":21, "CountryName":"UK"}); { "acknowledged" : true, "insertedId" : ObjectId("5ca1e62d66324ffac2a7dc58") }Following is the query to display all documents from a collection with the help of find() method> db.addingNewPropertyDemo.find().pretty();This will produce the following output{ "_id" : ObjectId("5ca1e61866324ffac2a7dc56"), "StudentName" : "John", "StudentAge" : 23, "CountryName" : "US" } { "_id" : ... Read More
The simplest way to create a Java Priority Queue to ignore duplicates is to first create a Set implementation −HashSet set = new HashSet (); set.add(100); set.add(150); set.add(250); set.add(300); set.add(250); set.add(500); set.add(600); set.add(500); set.add(900);Now, create Priority Queue and include the set to remove duplicates in the above set −PriorityQueuequeue = new PriorityQueue(set);Example Live Demoimport java.util.HashSet; import java.util.PriorityQueue; public class Demo { public static void main(String[] args) { HashSetset = new HashSet(); set.add(100); set.add(150); set.add(250); set.add(300); set.add(250); set.add(500); ... Read More
In order to select particular range of values in a MySQL table, you can use WHERE clause. Let us first create a table:mysql> create table DemoTable ( CustomerId int NOT NULL AUTO_INCREMENT PRIMARY KEY, CustomerName varchar(200), CustomerAge int, isRegularCustomer bool ); Query OK, 0 rows affected (0.57 sec)Following is the query to insert some records in the table using insert command:mysql> insert into DemoTable(CustomerName, CustomerAge, isRegularCustomer)values('Chris', 24, true); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable(CustomerName, CustomerAge, isRegularCustomer)values('Robert', 26, false); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable(CustomerName, CustomerAge, isRegularCustomer)values('Mike', ... Read More
Synchronized ArrayList and CopyOnWriteArrayList are useful for synchronizing the ArrayList. This is necessary for a multi-threaded environment to make sure thread safety is achieved.The differences between Synchronized ArrayList and CopyOnWriteArrayList are given as follows −Synchronized ArrayListCopyOnWriteArrayListSynchronized ArrayList is used to synchronize the ArrayList.CopyOnWriteArrayList is used to synchronize the ArrayList.The Java 1.2 version first introduced the Synchronized ArrayList.The Java 1.5 version first introduced the CopyOnWriteArrayList.The Synchronized ArrayList should be used when there are more write operations than reading operations in ArrayList.The CopyOnWriteArrayList should be used when there are more read operations than write operations in ArrayList.This iterator is a fail-fast iterator.This ... Read More
In this program we will see how to subtract two 8-bit BCD numbers.Problem StatementWrite 8086 Assembly language program to subtract two 8-bit BCD number stored in memory address offset 600.DiscussionThis task is too simple. Here we are taking the numbers from memory and after adding we need to put DAS instruction to adjust the accumulator content to decimal form after the subtraction operation. The DAS will check the AC and CY flags to adjust a number to its decimal form.InputAddressData……5009950125…… Flow Diagram Program OutputAddressData……6007460100……
You can achieve this with the help of aggregate framework in MongoDB. To understand it, let us create a collection with document. The query to create a collection with document is as follows:> db.sortInnerArrayDemo.insertOne( ... ... { ... "EmployeeDetails": ... { ... "EmployeeAddress": ... { ... "EmployeeCountry": ... [ ... { ... "EmployeeZipCode":1003, ... ... Read More
The pageContext object is an instance of a javax.servlet.jsp.PageContext object. The pageContext object is used to represent the entire JSP page.This object is intended as a means to access information about the page while avoiding most of the implementation details.This object stores references to the request and response objects for each request. The application, config, session, and out objects are derived by accessing attributes of this object.The pageContext object also contains information about the directives issued to the JSP page, including the buffering information, the errorPageURL, and page scope.The PageContext class defines several fields, including PAGE_SCOPE, REQUEST_SCOPE, SESSION_SCOPE, and APPLICATION_SCOPE, ... Read More
The hour of the day for a particular LocalTime can be obtained using the getHour() method in the LocalTime class in Java. This method requires no parameters and it returns the hour of the day which can range from 0 to 23.A program that demonstrates this is given as followsExample Live Demoimport java.time.*; public class Demo { public static void main(String[] args) { LocalTime lt = LocalTime.parse("15:28:35"); System.out.println("The LocalTime is: " + lt); System.out.println("The hour is: " + lt.getHour()); } }outputThe LocalTime is: 15:28:35 The hour is: 15Now let us ... Read More
The number of days for a particular Period can be obtained using the getDays() method in the Period class in Java. This method requires no parameters and it returns the number of days in the Period.A program that demonstrates this is given as followsExample Live Demoimport java.time.Period; public class Demo { public static void main(String[] args) { String period = "P5Y7M15D"; Period p = Period.parse(period); System.out.println("The Period is: " + p); System.out.println("The number of days are: " + p.getDays()); } } OutputThe Period is: P5Y7M15D The ... Read More