what is Scala used for
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- Scala (/ˈskɑːlɑː/ SKAH-lah) is a programming language for general software applications. Scala has full support for functional programming and a very strong static type system. This allows programs written in Scala to be very concise and thus smaller in size than other general-purpose programming languages. scala HelloWorld (You may need to use the -cp key to set the classpath like in Java). This is analogous to the process for compiling and running Java code. Indeed, Scala's compilation and execution model is identical to that of Java, making it compatible with Java build tools such as Ant.
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What does scalability mean in cloud computing? , Product Management & Marketing. 1  Scalability is one of the key benefits that comes with cloud computing. 2  Scalability is the ability of a computer application or product (hardware or software) to continue to function well when it (or its context) is changed in size or volume in order to meet a user need.
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Scalar Quantity in Physics: Definition & Examples All of the answers to these questions are called scalar quantities. A scalar is any quantity that only requires a magnitude or size to describe it completely. A scalar is any number that gives you the size or magnitude of a quantity, so a unit of measure must be attached to the number (like degrees or meters). Any random number is not a scalar.
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- How to install Scala on Debian/Ubuntu (Scala 2.9.0.1, 2.8.1). Update: Scala 2.9.0.1 (hotfixes to 2.9.0, released on May 12) was released on May 25, 2011. In this tip you can find a way how to install it (and older version - 2.8.1) onto yours Ubuntu/Debian box.
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- Scala runs on JVM and is fully compatible with Java. In fact, it's nearly identical to Java in terms of what you can do and how it works, so you could use Scala for anything Java would be a good choice for as well (notably: enterprise environments and cross-platform applications).cala does a couple of things well: 1  XML. 2  Scala's XML API is very good. 3  Static typing. 4  Type inference like Scala's is less verbose and more understandable than more explicit static typing (though that has its benefits too).
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Scala - Functions Scala has both functions and methods and we use the terms method and function interchangeably with a minor difference. A Scala method is a part of a class which has a name, a signature, optionally some annotations, and some bytecode where as a function in Scala is a complete object which can be assigned to a variable.
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- Elastic Scalability. 1  Use an elastic approach to scale your monitoring platform and data collection. 2  Store your monitoring data using an enterprise-ready big data back end (OpenTSDB-HBase) 3  Optimize manageability and reduce footprint with agentless collection.  Load balance your monitoring services across a pool of resources.
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Welcome Ahhh...where to begin. La Scala is nearly 40 years of homemade italian cooking. One family. A dozen recipes. A fresh tomato sauce made from scratch each morning. The perfect slice of pizza. Catering for weddings and intimate dinner parties. A landmark in the community. A warm smile.
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Scala Enterprise Managing your digital signage content can be challenging, but with the state-of-the-art content management, planning and scheduling tools included in Scala Content Manager, management and control of your network is both improved and simplified - reducing the resources required to control and maintain your network.
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Scala - Lists \>scalac Demo.scala \>scala Demo Output fruit : List(apples, apples, apples) num : List(2, 2, 2, 2, 2, 2, 2, 2, 2, 2) Tabulating a Function. You can use a function along with List.tabulate() method to apply on all the elements of the list before tabulating the list. Its arguments are just like those of List.fill: the first argument list gives the dimensions of the list to create, and the second describes the elements of the list. The only difference is that instead of the elements being fixed, they are computed from a function.
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- 1 Scala's XML API is very good. 2  Static typing. 3  Type inference like Scala's is less verbose and more understandable than more explicit static typing (though that has its benefits too). 4  And for a language that doesn't require too much typing (compared to others), it performs well.cala does a couple of things well: 1  XML. 2  Scala's XML API is very good. 3  Static typing. 4  Type inference like Scala's is less verbose and more understandable than more explicit static typing (though that has its benefits too).
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A Scala Tutorial for Java Programmers This document gives a quick introduction to the Scala language and compiler. It is intended for people who already have some programming experience and want an overview of what they can do with Scala. A basic knowledge of object-oriented programming, especially in Java, is assumed.o compile the example, we use scalac, the Scala compiler. scalac works like most compilers: it takes a source file as argument, maybe some options, and produces one or several object files. The object files it produces are standard Java class files.
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- up vote 12 down vote accepted. Scalability is the ability of a program to scale. For example, if you can do something on a small database (say less than 1000 records), a program that is highly scalable would work well on a small set as well as working well on a large set (say millions, or billions of records).
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Scala Basic Tutorial - How To Declare Variables And Types Mutable variables. OK, fair enough that Scala is a functional programming language which favours the immutable pattern. But, what if you are in a loop and need to increment some variable. That's a perfectly legitimate use case and to declare a variable as mutable, we use the keyword var as opposed to val.
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What is 'Scalability' A scalable company has effective tools for measurement, so the entire business can be assessed and managed at each level. This management leads to the efficient operations described above and helps with capital budgeting.
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Scalability in Cloud Computing: Old Problems With New Solutions The issues around scalability are not new problems. However, with AWS and cloud-based engineering techniques, the solution can be found in adopting a new way of looking at an old problem. Historically, approaches like forking became the way to scale up your application, with other approaches, like threads, following.
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Scala - Functions In other words, a function, which is defined as a member of some object, is called a method. A function definition can appear anywhere in a source file and Scala permits nested function definitions, that is, function definitions inside other function definitions. Most important point to note is that Scala function's name can have characters like +, ++, ~, &,-, --, \, /, :, etc.
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Scala (programming language) Many of Scala's design decisions were inspired by criticism of the shortcomings of Java. Scala source code is intended to be compiled to Java bytecode, so that the resulting executable code runs on a Java virtual machine. Java libraries may be used directly in Scala code and vice versa (language interoperability). scala HelloWorld (You may need to use the -cp key to set the classpath like in Java). This is analogous to the process for compiling and running Java code. Indeed, Scala's compilation and execution model is identical to that of Java, making it compatible with Java build tools such as Ant.
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Running Scala Binaries To run Scala from the command-line, simply download the binaries and unpack the archive. Start the Scala interpreter (aka the “REPL”) by launching scala from where it was unarchived.
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Scalability Scalability is often a sign of stability and competitiveness, as it means the network, system, software or organization is ready to handle the influx of demand, increased productivity, trends, changing needs and even presence or introduction of new competitors.
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Scalability Scalability is an attribute that describes the ability of a process, network, software or organization to grow and manage increased demand. A system, business or software that is described as scalable has an advantage because it is more adaptable to the changing needs or demands of its users or clients.
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What is the Scala Tympani? The scala tympani is a channel in the cochlea, the part of the ear where sounds are converted into electrical signals and sent to the brain. It is essential for hearing. Sound waves are converted to mechanical vibrations in the middle ear, and then into waves within the fluid-filled cavity of the scala tympani. Hair cells suspended in fluid then detect these waves, and relay the sound information through the cochlear nerve to the brain.
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- Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition: Scala. skā′la, n. (surg.) an instrument for reducing dislocation: a term applied to any one of the three canals of the cochlea:—pl. Scā′læ.—adj. Scā′lable, that may be scaled or climbed.—ns.
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- SCALAWAGS Scalawag was a derogatory term used by recalcitrant white southerners after the Civil War and during the dozen years of Reconstruction (1865 – 1877). It was applied to those white southerners who cooperated with the Union troops and with the Reconstruction State legislatures.
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How to Install Scala 2.9.3 on Ubuntu 12.04 LTS For this tutorial, we will start by installing the Java Runtime, and then Scala. Scala 2.9.3 is the current maintenance release of Scala at the time of this article, however the steps should be the same for other versions-you will just need to download a different link with wget, and decompress that file.
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Access Save. Structured Query Language (SQL) is used to select, retrieve, add and delete data within a database (a collection of related tables). You can update one or more columns within the tables of your database in your SQL statement, setting the values of your fields to what you want them to contain.