Data Structure
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Java
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Python
C Programming
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Now let us see a program of Intel 8085 Microprocessor. In this program we will see how to generate real time clock using 8085.Problem Statement:Write 8085 Assembly language program to simulate real-time clock.Discussion:In this program we are creating a real time clock using 8085MPU. Here we are generating 1s delay to update seconds. This clock is 24Hrs clock. We are initializing the clock from 00:00:00. To display the values into 7-segment display we have to use some Port ICs and correct configurations. In each 60 seconds the minute field is updated, and in each 60 minutes the hour field is ... Read More
These instructions are used to transfer the data from the source operand to the destination operand. These are also known as copy instructions.Let us see the data transfer instructions of 8086 microprocessor. Here the D and S are destination and source respectively. D and S can be either register, data or memory address.OpcodeOperandDescriptionMOVD, SUsed to copy the byte or word from the provided source to the provided destination.PUSHDUsed to put a word at the top of the stack.POPDUsed to get a word from the top of the stack to the provided location.PUSHA----Used to put all the registers into the stack.POPA----Used ... Read More
Before getting into an example, we should know what singleton design pattern is. A singleton is a design pattern that restricts the instantiation of a class to only one instance. Notable uses include controlling concurrency and creating a central point of access for an application to access its data store.This example demonstrates How to use singleton dialog 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. In the above ... Read More
To create Unit Tuple from another collection, use the fromCollection() method.Let us first see what we need to work with JavaTuples. To work with the Unit class in JavaTuples, you need to import the following package −import org.javatuples.Unit;Note − Steps to download and run JavaTuples program. If you are using Eclipse IDE to run Unit Class in Java Tuples, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport java.util.*; import org.javatuples.Unit; public class Demo { public static void main(String[] args) { ... Read More
The action can be used to write the template text in JSP pages and documents. Following is the simple syntax for this action −Template dataThe body of the template cannot contain other elements; it can only contain text and EL expressions (Note − EL expressions are explained in a subsequent chapter). Note that in XML files, you cannot use expressions such as ${whatever > 0}, because the greater than signs are illegal. Instead, use the gt form, such as ${whatever gt 0} or an alternative is to embed the value in a CDATA section.]]>If you need to include a ... Read More
The listIterator() method of the AbstractSequentialList class returns a list iterator over the elements in this list.The syntax is as followspublic abstract ListIterator listIterator(int index)Here, index is the index of the first element to be returned from the list iterator. The ListIterator here is the iterator for lists.To work with the AbstractSequentialList class in Java, you need to import the following packageimport java.util.AbstractSequentialList;The following is an example to implement AbstractSequentialList listIterator() method in JavaExample Live Demoimport java.util.LinkedList; import java.util.ListIterator; import java.util.AbstractSequentialList; public class Demo { public static void main(String[] args) { AbstractSequentialList absSequential = ... Read More
To add value in Ennead class in JavaTuples, you need to use the addAtX() method. Here, X represents the index wherein you need to add the value i.e. for index 2, use addAt2() method. Add the specific value as the parameter value of the method. For example −addAt2(“John”);Let us first see what we need to work with JavaTuples. To work with Ennead class in JavaTuples, you need to import the following package −import org.javatuples.Ennead;Note − Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> ... Read More
Use $in operator to query an array of arrays in MongoDB. 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.arrayOfArraysDemo.insertOne({"EmployeeName":"Larry", "EmployeeSkills":[["Java", "MongoDB", "MySQL", "SQL Server"]]}); { "acknowledged" : true, "insertedId" : ObjectId("5c7f7a8d8d10a061296a3c5b") } > db.arrayOfArraysDemo.insertOne({"EmployeeName":"Mike", "EmployeeSkills":[["C", "C++"]]}); { "acknowledged" : true, "insertedId" : ObjectId("5c7f7aa68d10a061296a3c5c") }Display all documents from a collection with the help of find() method. The query is as follows −> db.arrayOfArraysDemo.find().pretty();The following is the output −{ "_id" : ObjectId("5c7f7a8d8d10a061296a3c5b"), "EmployeeName" : "Larry", "EmployeeSkills" : ... Read More
The hashCode() method of AbstractList class returns the hash code value for this list.The syntax is as follows:public int hashCode()To work with the AbstractList class, import the following package:import java.util.AbstractList;The following is an example to implement hashCode() method of the AbstractlList class in Java:Example Live Demoimport java.util.ArrayList; import java.util.AbstractList; public class Demo { public static void main(String[] args) { AbstractList myList = new ArrayList(); myList.add(50); myList.add(100); myList.add(150); myList.add(200); myList.add(250); myList.add(300); myList.add(350); myList.add(400); ... Read More
To insert a document with date in MongoDB, use Date(). Following is the syntax“yourFieldName”:new Date(yourDateValue);Let us create a collection with documents. Following is the query>db.insertDocumentWithDateDemo.insertOne({"UserName":"Larry", "UserMessage":"Hi", "UserMessagePostDate":new Date("2012-09-24")}); { "acknowledged" : true, "insertedId" : ObjectId("5c9cca58a629b87623db1b16") } >db.insertDocumentWithDateDemo.insertOne({"UserName":"Chris", "UserMessage":"Hello", "UserMessagePostDate":new Date("2015-12-31")}); { "acknowledged" : true, "insertedId" : ObjectId("5c9cca71a629b87623db1b17") } >db.insertDocumentWithDateDemo.insertOne({"UserName":"Robert", "UserMessage":"Bye", "UserMessagePostDate":new Date("2019-01-01")}); { "acknowledged" : true, "insertedId" : ObjectId("5c9cca85a629b87623db1b18") }Following is the query to display all documents from a collection with the help of find() method> db.insertDocumentWithDateDemo.find().pretty();This will produce the following output{ "_id" : ObjectId("5c9cca58a629b87623db1b16"), "UserName" : "Larry", "UserMessage" : "Hi", ... Read More