Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles on Trending Technologies
Technical articles with clear explanations and examples
Difference between ACL and SCO Link in Bluetooth
Two types of data links are defined by Bluetooth link layers−Synchronous Connection Oriented (SCO) LinkAsynchronous Connection-Less (ACL) LinkSCO is a symmetric, point-to-point link between the master device and the slave device connected via Bluetooth.ACL is a point – to – multipoint link for transmitting general data packets using Bluetooth connection. ACL is used for irregular traffic between a master device and one or more slave devices.Differences between SCO and ACLSCOACL1SCO provides a circuit switched connection, where a dedicated, point-to-point link is established between the master device and the slave device before communication starts.ACL is a packet oriented link, i.e. the ...
Read MoreThe Bluetooth Link Layers
The Bluetooth link layer outlines the way Bluetooth devices can use the raw transmission facility given by the radio layer to exchange information. The functions of the link layer is very close to MAC (medium access control) sublayer of the OSI model.The following diagram shows the position of link layers in the Bluetooth protocol architecture −Functions of the Bluetooth Link LayerDefining procedures for discovering Bluetooth devices.Establishing logical links between the Bluetooth devices that are communicating. One of the devices is assigned as master and the other is the slave.Broadcasting data to be sent. Managing the links between the devices throughout ...
Read MoreHow to parse float with two decimal places in JavaScript?
To parse float with two decimal places, use the concept of toFixed(2). Following is the code −Examplevar price = 178932.89; var tax = 7.9; var totalPrice = price*tax; console.log("The actual value="+totalPrice); var gettingTwoPlacedValues = parseFloat(totalPrice).toFixed(2); console.log("After getting two placed values="+gettingTwoPlacedValues);To run the above program, you need to use the following command −node fileName.js.OutputHere, my file name is demo142.js. This will produce the following output −PS C:\Users\Amit\JavaScript-code> node demo142.js The actual value=1413569.8310000002 After getting two placed values=1413569.83
Read MoreMaximum product of an increasing subsequence of size 3 in C++
In this tutorial, we will be discussing a program to find maximum product of an increasing subsequence of size 3.For this we will be provided with an array of positive integers. Our task is to find a subsequence of three elements with the maximum product.Example#include using namespace std; //returning maximum product of subsequence long long int maxProduct(int arr[] , int n) { int smaller[n]; smaller[0] = -1 ; setS ; for (int i = 0; i < n ; i++) { auto j = S.insert(arr[i]); auto itc = j.first; ...
Read MoreDifference between Oracle 11g and Oracle 12c
Oracle 12c is just upgraded version of the Oracle 11g with some new features like cloud support and pluggable database, kind of like master slave architecture. With the Oracle 12 c, you can plug your database to cloud anytime. It has multiple new features like JSON support, multitenant architecture and etc.Sr. No.KeyOracle 11gOracle 12c1BasicIt was released in released in 2008 and has no pluggable databaseIt is High performance RDbMS which is released in 2014. It is pluggable database.2Identity columnWe can't set primary key to raise automaticallyWe can set primary key to rise automatically.3JSON typeWe can't store Json directly to the ...
Read MoreDifference between Ant and Maven.
Ant and maven both are build tools.They both can be used for compile, pulling dependence from repository and for creating war or ear files. Both are provided by the Apache.Ant is a tool and it doesn't have formal conventions. If you are using Ant then you have to tell what to do in XML files therefore it can't be used in different types of project setup.Maven is framework and it can also act as a dependency management tool. It is declarative build tool so everything we can define in the pom.xml. Sr. No.KeyMavenAnt1BasicMaven is a build automation framework based on the ...
Read MoreDifferences between String and StringBuffer
String is an immutable class and its object can’t be modified after it is created but definitely reference other objects. They are very useful in multithreading environment because multiple threads can’t change the state of the object so immutable objects are thread safe.String buffer is mutable classes which can be used to do operation on string object such as reverse of string, concating string and etc. We can modify string without creating new object of the string. String buffer is also thread safe.Also, string concat + operator internally uses StringBuffer or StringBuilder class. Below are the differences.Sr. No.KeyStringStringBuffer1BasicString is an ...
Read MoreDifference between CountDownLatch and CyclicBarrier in Java Concurrency
CountDownLatch and CyclicBarrier both used in multithreading environment and they both are part of.As per Java Doc −CountDownLatch − A synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes.CyclicBarrier − A synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point.Sr. No.KeyCyclicBarrierCountDownLatch1BasicA synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point.A synchronization aid that allows one or more threads to wait until a set of operations being ...
Read MoreDifference between Docker Swarm and Kubernetes
Docker Swarm and Kubernetes both can be used for similar purpose. They both are container orchestration tool.Docker Swarm is a tool used for clustering and scheduling Docker containers. We can easily establish and manage a cluster of Docker nodes under a single virtual system.Kubernetes is also container orchestration tool which is developed by google. It can be used for automatic deployment ,scaling, load balancing and logging and monitoring.Sr. No.KeyDocker SwarmKubernetes1BasicKubernetes is also container orchestration tool which is developed by google. It can be used for automatic deployment ,scaling, load balancing and logging and monitoring.Docker Swarm is a tool used for ...
Read MoreDifference between Apache Kafka and JMS.
Kafka and JMS both are messaging system. Java message service is an api which are provided by Java. It is used for implementing messaging system in your application. JMS supports queue and publisher /subscriber(topic) messaging system . With queues, when first consumer consumes a message, message gets deleted from the queue and others cannot take it anymore. With topics, multiple consumers receive each message but it is much harder to scale.Kafka is a generalization of these two concepts - it allows scaling between members of the same consumer group, but it also allows broadcasting the same message between many different ...
Read More