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How the new keyword allocates memory?

The new keyword in programming languages like C++ and Java allocates memory on the heap for an object or data structure. When new is called, it requests a block of memory sufficient to hold the specified type, initializes that memory (if applicable), and returns a pointer or reference to the newly allocated memory. This memory remains allocated until it is explicitly deallocated using delete in C++ or is automatically reclaimed by the garbage collector in languages like Java. Proper memory management is crucial to avoid memory leaks and ensure efficient use of resources.


What are the advantages disadvantages of testing APIs i.e application programming interface in cplusplus?

Advantages: * Absolute minimum barrier to use - By not using encryption or special authentication methods, anyone with access to the Internet should be able to begin working with your API quickly. * Easily distributed code - Login accounts or developer key programs that make use of your API can be widely distributed and used right out of the box. * Less to worry about - If you aren't managing user accounts or development keys, it's one less thing to keep track of, and your code efforts can concentrate solely on developing the API itself. Disadvantages: * No control - Anyone, anywhere, can use the API, and while this may sound like the goal of web services, it drastically limits your response if abuse requests begin pouring in. If those requests are coming from an application on a single machine, it is easy enough to recognize the requests and block them at the firewall. But should an application that behaves poorly reach wide distribution, you will have a very difficult time dealing with the requests. * No encryption - All requests and responses are visible to anyone between the requesting server and the API server. * Can't contact developers - Because anyone anywhere can access the API without any prior registration, you are left without any method of directly engaging developers using the API. You may want to contact developers in situations where their application is being abusive, when changes are being made to the API that will affect their application, or to seek suggestions on how to improve the API itself. * Abuse - Unfortunately today, systems with little or no security or authentication make prime targets for abuse by some less ethical elements out there.


What is deployment in java?

Deploy = build packet application that use by user to install your program Deploy = Finishing & Packaging In Java : - desktop : usually we deploy application to *.jar files - web app : usually we deploy it to *.war files feel free to visit http://www.javaclopedia.com


Can you make us a sentence using agile?

You have to be agile to keep up with sentence requests on the Internet.


Can an Ajax application communicate with other application on the client computer?

No, AJAX cannot communicate with applications on the client computer (with a few caveats.)JavaScript has no access to the local computer. This is by design. You can imagine the havoc that could be caused if my website were allowed to read your hard-drive (where you keep, say, financial information.)However, if you were to set a server up on the local machine, and then make requests to that server, and have the backend available, then you could gain access to that machine. Of course, that's a lot of work, and in the end, it's not access via JS to a remote host, just a local one.

Related Questions

Is caused when an application does not properly release memory allocated to it that it no longer needs and continually requests more memory than it needs?

memory leak


What is memory contention?

Memory contention is a state a OS memory manager can reside in when to many memory requests (alloc, realloc, free) are issued to it from an active application possibly leading to a DOS condition specific to that application. Memory contention is typically not caused by a memory overflow by all joined allocation requests but rather by the frequency of joined reallocation requests issued! Is is not about the joined memory size allocated but about the reallocation request queue size that overflows! A typical symptom of an application suffering memory contention and therefore not anymore being served memory management requests by the operating system, is that it unexpectedly shuts down without any form of notification.


What requests information from a web server?

An application or browser


What function does a server have?

Server's function is to respond for the client's application requests


Who is responsible to ensure work requests submitted to bce are properly prepared?

Operations Manager


If buyer requests a release from contract can seller choose to enforce the contract?

A contract, if properly drafted, is enforceable. If the buyer requests a release the seller can negotiate or keep the deposit.


Why can't I retrieve my FarmVille gift requests?

you can you just go to your home page in facebook and in the top right corner you click on farmville gift requests but if that's not there you click on other requests and find them You were possibly using 'farmville gift sender' application which is totally fake.


What is malloc fail?

MALLOC is an C Subroutine that requests the allocation memory. When this call fails, the most common reason is that you're out of memory; it's all been allocated. Unless you're programming this application, this is one of those problems you likely can't fix. Consider powering the system down, unplugging it, waiting 5 minutes and trying again.


Difference between a web server and a database server?

Application server is used to serve the logic of the business to the application with the help of different protocol whereas web server is used to handle HTTP requests. An application server is a computer that stores application programs designed to be run, as services, from a client computer. Depending on the application design, a client computer can run or invoke the remote application via a web interface or by running a client program designed to work with the application program. A web server is a program (or application program) that receives requests from Web Browsers and responds by sending data back to the browser where it is displayed as a web page.


What accepts logical io requests from application programs or other operating system modules translates them into physical io commands and passes the phsicsal commands to what?

MSDOS.SYS accepts logical io requests from application programsor other operating system modules translates them into physical io commands and passes the phsicsal commands to IO.SYS


Which SAP BusinessObjects server receives logon requests from the web application services?

I don't know, Server Intelligence Agent (SIA) is not the answer


Which layer of the tcp ip model processes requests from hosts to make sure a connection is made to the appropriate port?

Application layer