First question second: There is a huge amount of third party library and tool support for code compiled to Java bytecode and run on the VM. When you create a new language, one big issue is that you have to create everything that people can use with it, or make it compatible with something else like linking to existing static C libraries, or. The Java VM's open specification erm, so far , deep history, and broad applicability make it a nice target for new languages.
Because its not a Microsoft technology. As others have mentioned, there are a lot of great reasons to use the JVM, but I think it would be slightly less popular if Microsoft's CLR was as free, as portable, and as open. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Why are so many new languages written for the Java VM?
Asked 11 years, 8 months ago. Active 6 years, 5 months ago. Viewed 4k times. Improve this question. Who is "they" in the last question? Since it's a subjective question, I think this should be a community wiki.
Slokun, I disagree it's a subjective question: "popularity" in this context is a function of a wide variety of technical and other properties: making these explicit the point of the question allows people to make better decisions related to software development. And because since then Microsoft has been officially recognized as a monopoly that did actually abuse its monopoly to keep and try to extend that monopoly to other areas?
Java and the JVM came out of nowhere and won an insanely huge userbase and big companies' hearts Google, FedEx, Walmart, every single bank in the world, etc. In other words, precisely for the inverse reason Why don't dune buggy hobbyists design and build a new engine for every new kind of buggy?
Show 6 more comments. Active Oldest Votes. Within those communities, developers ask questions and engage in in-depth conversations on sites like StackOverflow.
Outside of StackOverflow, there are also extensive communities that are cultivated by Microsoft and Oracle themselves. Topics there include implementations in the cloud, troubleshooting questions and more. Beyond this, though, the communities are definitely more centered around individual languages and platforms such as. However, in many if not most cases, the differences at the VM-level mirror the key differences between the languages that use them.
Because of the way these VMs, and their corresponding languages, were built, each functions slightly differently in order to provide the functional capabilities that their creators wanted to provide.
Will you choose your next programming language based on which VM it uses? Let us know in the comments below! Tali is a content manager at OverOps covering topics related to software monitoring challenges. She has a degree in theoretical mathematics, and in her free time, she enjoys drawing, practicing yoga and spending time with animals. This website uses cookies so that we can provide you with the best user experience possible.
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Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings. NET Jit can't improve in these areas e. NET Core 2. I think that the "lack of value types" is probably an overrated difference these days.
Empirically, I've found that value types generally only offer a tangible perf benefit when they're the size of a pointer or smaller. There aren't a whole lot of spots where that comes into play. Primitives, sure, but Java also has those. Beyond that, maybe you'd see some difference in code that does a lot of date calculations, maybe. I've done some slightly obscene and shameful optimizations around packing data into bit structures in the past, but those are pretty special cases.
How about vectors or coordinates? If you're just using local values, or storing them in an array, then, yeah, value types might help. That's a likely scenario for something like storing arrays of vectors. The spot where you take a hit is when you've got a scattering of individual objects that are being passed into and out of functions.
There, the extra data copying has a tendency to outweigh the other benefits. And that's a more likely scenario for most kind of the kinds of business apps that. NET and Java are typically used for. No they are a real issue, and that is why Oracle is pouring millions into improving the JVM in this area. Oracle is not a company that gives money away for free. Or why we are starting to see languages like Pony and Chapel pop up. Or mostly FE projects? I am talking in general, based in talks from Martin Thompson and other guys working on the field.
I'm hoping that 'Tiered Compilation' will help, but it's early days. We will have to wait until it is 'officially' in. NET Core before it can be properly tested. The JVM has simply has a lot more resources poured into it. I expect performance of the JVM to beat C for a long time, but since the designs are so similar the difference isn't important in most cases. Having spent time in both ecosystems, I'll admit that C is easily a superior language to Java, honestly the best designed language I've ever used.
Not surprising since it has the same designer as Delphi and Typescript. It's all syntactic sugar, but so much so that programming C is significantly faster and easier. What really hurts the. NET ecosystem right now is an insanely large gap in open source support. Something MS is fostering now but spent more than a decade trying to kill. This will not be easy to fix, as it's more a people problem than technical. MS actively tried to hurt the open source community for over a decade and to get support they will need to change the mind of countless people.
It remains to be seen if this is viable. If I was Microsoft I would remedy this by adding first-class support for Java libraries in C by throwing their support behind existing projects to do so. This might close a gap that could otherwise take decades to fill. This might close a gap that could otherwise take decades to fill Apparently you never heard of J. I hadn't, but the primary problem is the inverse case. Java programmers have no problem switching to C and vice versa.
The languages are really similar. The problem is that many millions of lines of open source software have already been written in Java and developers are not going to spend thousands of man-years converting them.
Especially because they know the languages are so similar. Developers are well aware that it would take minimal effort to make the languages compatible so they make little effort to port from one to the other. And Microsoft's problem is that the vast majority of these projects already target Java. If the languages were vastly different ports would be more interesting and fun to do, but since they're not porting is basically a boring and vastly annoying syntax conversion.
Something annoying that nobody wants to do for free. If Microsoft officially supported interop with native Java libraries I believe C would take off like a rocket. Unfortunately, so far, Microsoft hasn't really sent out an olive branch to the massive open source Java community.
Quantity does not matter, if the relevant libraries are there. The execution engine is the JVM component that handles this function. The execution engine is essential to the running JVM. In fact, for all practical purposes, it is the JVM instance.
Executing code involves managing access to system resources. The JVM execution engine stands between the running program--with its demands for file, network and memory resources--and the operating system, which supplies those resources. Recall that the JVM is responsible for disposing of unused memory, and that garbage collection is the mechanism that does that disposal.
The JVM is also responsible for allocating and maintaining the referential structure that the developer takes for granted. As an example, the JVM's execution engine is responsible for taking something like the new keyword in Java, and turning it into an OS-specific request for memory allocation. Since the JVM is interoperable across operating systems, this is no mean task. In addition to each application's resource needs, the execution engine must be responsive to each OS environment.
That is how the JVM is able to handle in-the-wild demands. In , the JVM introduced two revolutionary concepts that have since become standard fare for modern software development: "Write once, run anywhere" and automatic memory management. Software interoperability was a bold concept at the time, but few developers today would think twice about it. Likewise, whereas our engineering forebears had to manage program memory themselves, my generation grew up with garbage collection.
We could say that James Gosling and Brendan Eich invented modern programming, but thousands of others have refined and built on their ideas over the following decades.
Whereas the Java Virtual Machine was originally just for Java, today it has evolved to support many scripting and programming languages, including Scala, Groovy, and Kotlin. Looking forward, it's hard to see a future where the JVM isn't a prominent part of the development landscape. This story, "What is the JVM?
He believes in people-first technology.
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