The gray lines are comments that explain the program to humans When compiled and run, it will give the output hello, world! A programming language is an artificial language for expressing computer programs [1] programming languages typically allow software to be written in a human readable manner Execution of a program requires an. Programming language theory (plt) is a branch of computer science that deals with the design, implementation, analysis, characterization, and classification of formal languages known as programming languages
Programming language theory is closely related to other fields including linguistics, mathematics, and software engineering. A programming language can be classified as supporting one or more paradigms [1] paradigms are separated along and described by different dimensions of programming. Programming languages are used for controlling the behavior of a machine (often a computer) Like natural languages, programming languages follow rules for syntax and semantics There are thousands of programming languages [1] and new ones are created every year
Commands or functions in the language are structurally similar to a processor's instructions These languages provide the programmer with full control over program memory and the underlying machine code. Programming languages have been classified into several programming language generations [1] historically, this classification was used to indicate increasing power of programming styles Later writers have somewhat redefined the meanings as distinctions previously seen as important became less significant to current practice. Computer programming or coding is the composition of sequences of instructions, called programs, that computers can follow to perform tasks
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