How does runtime work




















Want to learn more tech terms? Subscribe to the daily or weekly newsletter and get featured terms and quizzes delivered to your inbox. You can unsubscribe or change your frequency setting at any time using the links available in each email. Please contact us. We just sent you an email to confirm your email address. Once you confirm your address, you will begin to receive the newsletter. Definitions by TechTerms. Tech Factor? When the portable, virtual-machine-based languages like Java and C came out, there was a need to provide an additional layer of isolation between applications and the underlying operating system, so that applications could run either on Unix, or on Windows, or on anything else.

That was provided by the virtual machine and the rich set of libraries that it came with. Yes, your broad understanding "runtime environment is the environment on which the code will run" is about as specific as that term will be defined.

Effectively, the hardware your code is running on. The OS your code is running on. The libraries made available to your code when running. The environment variables that your code has access to. The locale your program is running in. It varies from job to job. Many programs don't care very much at all, because it doesn't really matter. Some programs need to care a great deal, because the platform their running on doesn't do a great job at abstracting away hardware differences, or because the code will vary its behavior depending on the environment it's running in.

But as a term, knowing "runtime environment" generally refers to the intermediary "stuff" needed to run managed languages like C and Java is sufficient. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. What really is the "runtime environment"? Ask Question. Asked 5 years, 11 months ago. Active 1 year, 7 months ago. Viewed 6k times. Reading the article Introduction to the Common Language Runtime CLR there we find the following piece of text: Every program has a surprising number of dependencies on its runtime environment.

Improve this question. Maybe similar to: stackoverflow. I disagree, I don't think the answers on that dupe target or the dupe it points to really answer this specific question. Closely related, yes: duplicate, no. Add a comment. Active Oldest Votes. The operating system that runs the program, including device drivers that interface with the hardware. However, this poses a challenge for developers, since operating systems can differ significantly from each other, and different versions of the same operating system are in use at any given time.

In theory, it would be necessary to adapt programs to each operating system. To avoid this extra hassle, developers use runtime environments. Register a domain name. Runtime environments RTE for short act as small operating systems and provide all the functionality necessary for a program to run.

This includes interfaces to physical parts of the hardware, user interactions, and software components. A runtime environment loads applications and has them run on a platform. All the resources necessary for running independently of the operating system are available on this platform. Within this environment, Flash videos can be played in the same quality and with the same functionalities regardless of which browser or operation system is being used.

The runtime environment in turn acts as a go-between between the application and the operating system. The runtime environment thus includes hardware, memory, variables in the environment, and interactions with the user and software components.

But it also has a second meaning in other contexts, namely the amount of time that a program needs to execute a task. A runtime environment provides various basic functions for memory, networks, and hardware.

These functions are carried out by the runtime environment instead of the application and work independently of the operating system. They include reading and writing files, managing input and output devices, searching and sorting files, and transporting data via networks. The individual modules of a runtime environment are saved in runtime libraries.

In Windows, you can identify these libraries based on the extension. One major benefit of runtime environments is that programs have access to all the functionalities they need and thus work independent of operating systems.

Developers also use runtime environments to test applications in their execution. In the case of an error, the RTE reports the reason for the crash.



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