How does a quine work?

Introduction. A quine is a program which prints its own listing. This means that when the program is run, it must print out precisely those instructions which the programmer wrote as part of the program (including, of course, the instructions that do the printing, and the data used in the printing).

Is an illegal self-replicating small program?

Virus is illegal, self-replicating small program.

What is a program that prints itself called?

A quine program , or quine , is a program that outputs its own source code when run. A quine is not allowed to “step outside itself” by, for example, printing out the contents of the file in which it is contained or using introspective capabilities to print its own representation.

What are quines used for?

This medication is used alone or with other medication to treat malaria caused by mosquito bites in countries where malaria is common. Malaria parasites can enter the body through these mosquito bites, and then live in body tissues such as red blood cells or the liver.

What is the shortest programming language?

The shortest code on average is produced by programs written in Wolfram’s Mathematica. The runner-up is Clojure, closely followed by the R language.

Can a virus affect hardware?

A computer virus is defined as a self-replicating computer program that interferes with a computer’s hardware, software, or OS.

Is a self replicate program?

A quine is a computer program which takes no input and produces a copy of its own source code as its only output. The standard terms for these programs in the computability theory and computer science literature are “self-replicating programs”, “self-reproducing programs”, and “self-copying programs”.

Can you make a virus with Java?

So in that sense, yes you can write malware in Java, but you would be somewhat more limited than if you were writing in a systems language like C; a keylogger is much harder to write in Java than in C, and hiding it well is probably impossible.

Are self-replicating malwares?

Another type of self-replicating malware is the worm; like a virus it is designed to make copies of itself, but unlike a virus, a worm is a standalone application. Worms spread through network connections, accessing uninfected machines and then hijacking their resources to transmit yet more copies across the network.

What is a quine in programming?

What is the definition of a quine program?

A quine is a computer program which takes no input and produces a copy of its own source code as its only output.

How is a quine created in a programming language?

In general, the method used to create a quine in any programming language is to have, within the program, two pieces: (a) code used to do the actual printing and (b) data that represents the textual form of the code.

Can a quine receive any form of input?

Quines, per definition, cannot receive any form of input, including reading a file, which means a quine is considered to be “cheating” if it looks at its own source code. The following shell script is not a quine: #!/bin/sh # Invalid quine.

Where can I find source code for Quine?

The source code contains a string array of itself, which is output twice, once inside quotation marks. This code was adapted from an original post from, where the author, Jason Wilson, posted it as a minimalistic version of a Quine, without Java comments.