Why is variable declaration required in most programming languages?

Variable types are necessary for the compiler to be able to verify that correct value types are assigned to a variable. The underlying needs vary from language to language. This doesn’t have anything to do with types.

What common programming language statement in your opinion is most detrimental to readability?

One of the most common programming language statements that is detrimental to readability is the conditional statement such as an if, while, etc… especially if it involves compound statements and or nested conditionals.

What arguments can you make for and against the idea of a single programming language for all programming domains?

Some arguments against having a single language for all programming domains are: The language would necessarily be huge and complex; compilers would be expensive and costly to maintain; the language would probably not be very good for any programming domain, either in compiler efficiency or in the efficiency of the …

What are disadvantages of a typeless language?

The advantage of a typeless language is flexibility; any variable can be used for any type values. The disadvantage is poor reliability due to the ease with which type errors can be made, coupled with the impossibility of type checking detecting them.

What are the arguments for writing efficient programs?

What are the arguments for writing efficient programs even though hardware is relatively cheap? Inefficient programs cause page faults, memory errors, and leaks that can cause system-wide crashes. Program efficiency also increases maintenance and reliability.

Why readability is important in programming language?

Code readability is one of the most important qualities of good code, like the art of writing code it’s a subjective topic which varies between developers. If code is easy to read, it will be easy to understand which makes it easy to debug, maintain and extend.

What are the advantages and disadvantages of a type less language name some type less languages?

The advantage of a typeless language is flexibility; any variable can be used for any type values. The disadvantage is poor reliability due to the ease with which type errors can be made, coupled with the impossibility of type checking detecting them.

What is Typeless programming language in PPL?

Posted on August 16, 2019 by Mel Hawthorne. This is a class of high-level programming languages that share a common trait – they don’t have or use data types. Data types are particular types of data such as string that can contain text, or a Boolean that can only contain true/false values.

What are the disadvantages of dynamic scoping?

Another problem with dynamic scoping is inability to statically check references for nonlocal. Also, dynamic scoping makes programs much more difficult to read, because the calling sequence of subprograms must be known to determine the meaning of references to non-local variables.

What is a typed programming language?

A strongly-typed programming language is one in which each type of data (such as integer, character, hexadecimal, packed decimal, and so forth) is predefined as part of the programming language and all constants or variables defined for a given program must be described with one of the data types.

What is dynamic type binding?

Dynamic Type Binding. • The type of a variable is not specified by a. declaration statement, nor can it be. determined by the spelling of its name. • Instead, the variable is bound to a type.

What is the meaning of Typeless?

Adjective. typeless (not comparable) Not conforming to a type.